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Journal articles on the topic 'Lasers'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Ghazi, Fatima, and Milad A. R. Alhammashi. "Laser Technology and Its Applications in Medicine." SAS Journal of Medicine 12, no. 04 (2025): 97–106. https://doi.org/10.36347/sjpms.2025.v12i04.003.

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This study examines the laser and its uses in medicine. It refers to light amplification by stimulated emission of radiation (SEER). This is electromagnetic radiation whose photons are equal in frequency and phase, and whose wavelengths interfere constructively, transforming into a light pulse. The history of laser development, which began in the mid-nineteenth century, is also studied. Lasers have evolved and their use in many fields has expanded. The components of the laser, including the active medium, the excited source, and the resonator, are also studied. The conditions for lasing are de

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2

Wang, Yan, and Yue Song. "Recent Advances in Tunable External Cavity Diode Lasers." Applied Sciences 15, no. 1 (2024): 206. https://doi.org/10.3390/app15010206.

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A narrow linewidth tunable laser source is a critical component in various fields, including laser radar, quantum information, coherent communication, and precise measurement. Tunable external cavity diode lasers (ECDLs) demonstrate excellent performance, such as narrow linewidth, wide tunable range, and low threshold current, making them increasingly versatile and widely applicable. This article provides an overview of the fundamental structures and recent advancements in external cavity semiconductor lasers. In particular, we discuss external cavity semiconductor lasers based on quantum well

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3

Pinto, Ana M. R., and Manuel Lopez-Amo. "All-fiber lasers through photonic crystal fibers." Nanophotonics 2, no. 5-6 (2013): 355–68. http://dx.doi.org/10.1515/nanoph-2013-0026.

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AbstractA review on all-fiber lasers based on photonic crystal fibers is presented. Photonic crystal fibers present improved features beyond what conventional optical fibers can offer. Due to their geometric versatility, photonic crystal fibers can present special properties and abilities which can lead to enhanced lasing structures. A brief description of photonic crystal fibers and fiber laser’s properties is presented. All-fiber laser structures developed using photonic crystal fibers are described and divided in two groups, depending on the cavity topology: ring cavity fiber lasers and lin

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4

Nemova, Galina. "Brief Review of Recent Developments in Fiber Lasers." Applied Sciences 14, no. 6 (2024): 2323. http://dx.doi.org/10.3390/app14062323.

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This review covers the recent achievements in high-power rare earth (RE)-doped fiber lasers, Raman fiber lasers, and Brillouin fiber lasers. RE-doped fiber lasers have many applications such as laser cutting, laser welding, laser cleaning, and laser precision processing. They operate in several wavelength ranges including 1050–1120 nm (ytterbium-doped fiber lasers), 1530–1590 nm (erbium- and erbium–ytterbium-doped fiber lasers), and 1900–2100 nm (thulium- and holmium-doped fiber lasers). White spaces in the wavelength spectrum, where no RE-doped fiber lasers are available, can be covered by Ra

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5

Yan, Senlin. "Controlling two chaotic lasers via OD-DCF." ITM Web of Conferences 47 (2022): 03003. http://dx.doi.org/10.1051/itmconf/20224703003.

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We present a novelty optoelectronic delay double-cross-feedback (OD-DCF) scheme to control two chaotic lasers based on coupled lasers. We design out the OD-DCF technical solution to convert two lights from two lasers into two photocurrents by two photo-detectors, and then the delay photocurrents are cross-fed back to each other’s lasers respectively to suppress two chaotic oscillations and guide two laser’s dynamics behaviours, respectively. By adjusting the feedback levels and delayed time of OD-DCF, two lasers can obtain chaos-control and show all kinds of dynamics behaviours. We find that c

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6

Kwaśna, Magdalena, Paulina Cłapińska, Zuzanna Piosik, et al. "Intraoral Applications of Lasers in the Prosthetic Rehabilitation with Fixed Partial Dentures—A Narrative Review." Dentistry Journal 12, no. 6 (2024): 164. http://dx.doi.org/10.3390/dj12060164.

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Laser, an acronym for Light Amplification by Stimulated Emission of Radiation, is a powerful tool with diverse applications in modern dentistry. It emits monochromatic, coherent light resulting from photon-induced chain reactions. Available dental lasers include diode, argon, Er,Cr:YSGG, Er:YAG, Nd:YAG, and CO2. The unique property of these lasers, allowing them to be effectively used on both soft and hard tissues based on the operational parameters, positions them as particularly suited for a wide range of dental procedures. Compared to traditional methods, lasers offer advantages such as imp

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7

Zhao, Huizi, Longfei Jiang, Liang Li, et al. "Wide-Spectrum Tuning and Narrowing of 780 nm Broad-Area Diode Laser with Littrow-Type Transmission Gratings." Photonics 11, no. 10 (2024): 948. http://dx.doi.org/10.3390/photonics11100948.

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Spectrum-narrowed and -locked broad-area diode lasers operating at 780 nm are essential for rubidium laser development. With the help of Littrow-type transmission gratings, we demonstrated a simple scheme with a narrow linewidth and the diode laser’s center wavelength locked without thermal drift, in contrast to volume Bragg gratings. By carefully collimating the diode laser beam, we realized a linewidth narrower than 0.17 nm and a side-mode suppression ratio over 20 dB. Furthermore, broad-spectrum tuning at 9 nm was demonstrated by grating angle tuning. This method could easily be adapted to

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8

Nemova, Galina. "Radiation-Balanced Lasers: History, Status, Potential." Applied Sciences 11, no. 16 (2021): 7539. http://dx.doi.org/10.3390/app11167539.

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The review of history and progress on radiation-balanced (athermal) lasers is presented with a special focus on rare earth (RE)-doped lasers. In the majority of lasers, heat generated inside the laser medium is an unavoidable product of the lasing process. Radiation-balanced lasers can provide lasing without detrimental heating of laser medium. This new approach to the design of optically pumped RE-doped solid-state lasers is provided by balancing the spontaneous and stimulated emission within the laser medium. It is based on the principle of anti-Stokes fluorescence cooling of RE-doped low-ph

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9

Ma’mun, Hisyam, Gostsa Khusnun Naufal, and Agus Mukhtar. "Rancang Bangun Laser Grafir Portabel Berdaya Rendah Pada Media Kayu." IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) 3, no. 2 (2024): 8–14. http://dx.doi.org/10.56862/irajtma.v3i2.122.

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Kayu dapat dinaikkan nilainya dengan menambahkan pola dengan menggunakan cahaya yang berasal dari laser. Jenis sumber laser yang saat ini terbagi menjadi 4 jenis antara lain : Semiconductor lasers, Solid-state lasers, Fiber lasers, Gas lasers. Masing - masing sumber pembangkitan laser tersebut memiliki perbedaan baik dari cara pembangkitan cahaya laser, panjang gelombang laser yang dihasilkan serta komponen pendukung yang diperlukan dalam pengopersionalan sistem laser. Dalam penelitian ini jenis sumber laser akan dipilih sesuai dalam kriteria yang sudah ditentukan peneliti. Pemilihan tersebut

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10

Parkprom, P., N. Chattrapiban, P. Sompet, and N. Thaicharoen. "Laser linewidth measurement using beat-note technique." Journal of Physics: Conference Series 2653, no. 1 (2023): 012081. http://dx.doi.org/10.1088/1742-6596/2653/1/012081.

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Abstract Lasers play a crucial role in quantum and atomic physics experiments. To prepare atoms in a desired quantum state, these lasers must possess specific properties, including tunability and a narrow spectral linewidth. In this study, we construct and employ an external cavity diode laser to prepare cold rubidium atoms. We control the laser’s stability using an electronic system and evaluate its performance by measuring the spectral linewidth through the beat signal technique. The measurement indicates a linewidth narrower than 1 MHz, which makes the laser suitable for subsequent experime

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11

Jalil, Muhammad Arif Bin. "A Brief Overview On The Krypton Ion Laser." International Journal for Research in Applied Science and Engineering Technology 12, no. 11 (2024): 1113–18. http://dx.doi.org/10.22214/ijraset.2024.65304.

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Abstract: The Krypton laser is a member of the family of gas lasers, which employ rare gases as its lasing medium. Another name for it is a krypton ion laser. In ion lasers, the stimulated emission process takes place in between the ion's two energy levels. Since it produces white light, argon is one of the gases most frequently utilized in gas lasers. Krypton lasers are special because they can shine on four distinct spectral lines red, blue, yellow, and green when the right mirrors are used. There are up to ten different wavelengths of light that the krypton laser can emit, but the most impo

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12

Huang, Qin, Zucen Li, Ping Lyu, Xuedong Zhou, and Yi Fan. "Current Applications and Future Directions of Lasers in Endodontics: A Narrative Review." Bioengineering 10, no. 3 (2023): 296. http://dx.doi.org/10.3390/bioengineering10030296.

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The utilization of lasers has been regarded as a novel technique for the purposes of clinical use in the dental field. Recently, numerous studies have been conducted on the potential applications of laser therapy in endodontics. Moreover, due to their ablation, penetrability, and disinfection capabilities, lasers have performed well with respect to endodontic treatments, including root canal treatment, vital pulp therapy (pulp capping and pulpotomy), dentinal hypersensitivity treatment, and management of dental pain related to pulp and periradicular disease. In particular, the superiorities of

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13

Xie, Yufeng. "Analysis of Low-Threshold 1D Perovskite Photonic Crystal Laser." Highlights in Science, Engineering and Technology 121 (December 24, 2024): 267–75. https://doi.org/10.54097/c5sdds38.

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By using the bandgap effect and light localization effect, photonic crystal lasers can decrease the optical mode volume and lower the laser threshold, so satisfying the requirements for device shrinking and photonic integration. Given their wide range of potential applications in fields including light-emitting diodes and sensors, they are attracting considerable interest. The laser threshold is the minimum energy density required to cause laser oscillation and is a crucial specification for the practical application of laser devices. Perovskite materials, equipped with their exceptional optic

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14

AlDomyati, Roaa, Raghad Bajaber, Faisal Alrumi, et al. "The Use of Lasers in Pediatric Dentistry: Applications, Benefits, and Limitations." JOURNAL OF HEALTHCARE SCIENCES 03, no. 10 (2023): 427–35. http://dx.doi.org/10.52533/johs.2023.31009.

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The application of laser technology in pediatric dentistry holds immense promise for improving the quality of care and treatment experiences for young patients. Laser technology offers efficient methods for diagnosing and addressing oral and dental issues in children, encompassing both soft and hard tissues. Research indicates that the use of lasers in restorative, pulpal, and surgical procedures enhance children's cooperation and results in better care quality. Different kinds of lasers, including laser fluorescence (LF), argon lasers, erbium lasers, and CO2 lasers, are used in a range of den

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15

ZARZUELO, GARCIA ALBERTO, CUELLO JESSICA CESAR, MARTINEZ ROBINSON CRUZOE GUZMAN, et al. "Dataset from: Investigation of the Long-Term Stability of a Local Oscillator Generator based on InP-Si3N4 Laser Source for Satellite Payloads." Journal of Lightwave Technology 42, no. 13 (2024): 4365–71. https://doi.org/10.5281/zenodo.10683885.

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We report an experimental characterization of the long-term stability of a local oscillator (LO) signal generation module for satellite communications based on the optical heterodyning of two InP/Si3N4 hybrid integrated lasers. Specifically, we analyze simultaneously the wavelength drift of both lasers in the optical domain and the electrical drift of the generated radiofrequency (RF) beat between the lasers. We identify the main factors that contribute to the overall drift such as the electrical noise coming from the supply sources, the thermal noise coming from the temperature control unit,

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16

Neauport, Jérôme, and Sebastien Vermersch. "Le laser Megajoule." Photoniques, no. 126 (2024): 22–26. http://dx.doi.org/10.1051/photon/202412622.

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Dédié à l’étude des plasmas denses et chauds au sein du programme de Simulation du CEA DAM, le laser Mégajoule est actuellement l’un des lasers les plus énergétiques du monde. Après la mise en route d’une première chaîne laser en 2014, il comprend aujourd’hui 11 chaines lasers (soit 88 faisceaux lasers) délivrant quotidiennement jusqu’à 330 kJ d’énergie sur cible à la longueur d’onde de 351 nm. Nous décrivons le système laser LMJ, les performances atteintes dans sa configuration actuelle, ainsi que les campagnes lasers conduites pour amener l’installation à une énergie de 1.3 MJ, une fois les

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17

Hawra, Mohammed Al HamadImam Lina Fahad Mengari Belal Abdulwasea Gogandy Enas Ismail Hawsawy Maymonah nezar Al-madani Imtithal mohammed zabermawi Ahmad Y. Alqisi Abdulrahman Khaleel Maddhar Muhannad Abdulhadi Almuhammadi Zenab Khalid Brahim Alnoweser. "LASERS IN ENDODONTICS." INDO AMERICAN JOURNAL OF PHARMACEUTICAL SCIENCES 06, no. 01 (2019): 1415–21. https://doi.org/10.5281/zenodo.2545630.

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<strong><em>Background: </em></strong><em>Laser technology is an evolving field. New lasers that have a diverse range of characteristics are now available and are being used in various fields of dentistry. Over the past 20 years, many technological advances have been made, and we now have new and improved lasers for our use. Laser technology was introduced to endodontics first by Weichman in 1971 with the goal of improving the results obtained with traditional procedures.</em> <strong><em>The aim</em></strong><strong><em> of Work: </em></strong><em>The aim of this review article is</em><em> to

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18

Xia, Hongyan, Chang Hu, Tingkuo Chen, Dan Hu, Muru Zhang, and Kang Xie. "Advances in Conjugated Polymer Lasers." Polymers 11, no. 3 (2019): 443. http://dx.doi.org/10.3390/polym11030443.

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This paper provides a review of advances in conjugated polymer lasers. High photoluminescence efficiencies and large stimulated emission cross-sections coupled with wavelength tunability and low-cost manufacturing processes make conjugated polymers ideal laser gain materials. In recent years, conjugated polymer lasers have become an attractive research direction in the field of organic lasers and numerous breakthroughs based on conjugated polymer lasers have been made in the last decade. This paper summarizes the recent progress of the subject of laser processes employing conjugated polymers,

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19

Wang, Zhiyang, Hangbo Shi, Zijie Liu, Jianxiang Miao, Tiantian Shi, and Jingbiao Chen. "The development and future of the Faraday laser." Journal of Physics: Conference Series 2889, no. 1 (2024): 012039. http://dx.doi.org/10.1088/1742-6596/2889/1/012039.

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Abstract Faraday lasers, distinguished by their utilization of the Faraday anomalous dispersion optical filter (FADOF), employ atomic transitions for mode selection. This sets them apart from other semiconductor diode lasers, which commonly employ gratings, interference filters, and etalons for frequency selection and initiating laser oscillation. A notable advantage of Faraday lasers is their resistance to noises in driving current and the temperature of the laser diodes. Additionally, the using of FADOF enables the output frequency of the laser to align with atomic transition lines immediate

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20

Malherbe, C. P. "Lasers: Aspects of effectiveness and safety." South African Journal of Physiotherapy 47, no. 2 (1991): 24–27. http://dx.doi.org/10.4102/sajp.v47i2.760.

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The use of laser therapy by physiotherapists has shown a marked increase in popularity over recent years. Effectiveness and safety of lasers is essential. The results of an investigation by the CSIR of some infrared lasers is reported, highlighting, e.g., that all that SAYS laser may not BE laser. New legislation that will ensure that lasers conform with the minimum requirements to be safe and effective products, is discussed. The risk of laser radiation and product/premises licenses as a means of ensuring safe use of lasers, are explained.

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21

Zivkovic, Slavoljub, Larisa Blazic, and Mila Kolar. "Lasers in dentistry." Serbian Dental Journal 51, no. 3 (2004): 146–52. http://dx.doi.org/10.2298/sgs0403146z.

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Lasers and laser technology is now used in many medical and dental indications. The aim of this study was to demonstrate many excellent points that should be considered by the dentist who is contemplating the use of lasers in dental practice. The interaction of laser radiation on soft tissue enables dry and bloodless surgery, minimal postoperative swelling and scarring, and minimal postoperative pain. Lasers for hard tisues encourage efficient diagnosis of caries and improve the resistence of dental enamel to caries, laser etching of enamel, cavity preparations, photopolymerization of composit

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22

Li, DongCheng. "Femtosecond pulsed laser technology and applications." Theoretical and Natural Science 28, no. 1 (2023): 166–73. http://dx.doi.org/10.54254/2753-8818/28/20230347.

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This paper describes femtosecond pulsed laser technology and related applications. The focus is on two core femtosecond pulsed laser technologies: femtosecond pulsed laser generation and amplification. In the generation of femtosecond pulsed lasers, mode-locking techniques, Kerr-lens mode-locking, and semiconductor saturable absorber mirrors are presented; in the amplification of femtosecond pulsed lasers, chirped-pulse amplification and coherent synthesis techniques are presented. This paper analyses the applications of femtosecond pulsed lasers in both the biomedical and manufacturing sector

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23

Wang, Xuefeng, Shihao Sun, Ye Zheng, et al. "Influence of Pre-Radiation and Photo-Bleaching on the Yb-Doped Fiber Laser Radiated with Gamma-ray." Applied Sciences 13, no. 10 (2023): 6146. http://dx.doi.org/10.3390/app13106146.

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To improve the radiation resistance of Yb-doped fiber lasers, we investigate the influence of pre-radiation and photo-bleaching on the gamma-radiated laser’s performance. When the gamma radiation dose is within 10 krad(Si) with a radiation dose rate less than 0.4 rad(Si)/s, compared to the output power of a non-pre-radiated Yb-doped fiber laser, the pre-radiation technique could enhance the radiation resistance against gamma-ray. However, the mode instability threshold was decreased, which was caused by the cumulated radiation-induced attenuation of pre-radiation and radiation. Based on an ele

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24

FUKUDA, MITSUO. "RELIABILITY OF HIGH POWER PUMP LASERS FOR ERBIUM-DOPED FIBER AMPLIFIERS." International Journal of High Speed Electronics and Systems 07, no. 01 (1996): 55–84. http://dx.doi.org/10.1142/s0129156496000049.

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The degradation behavior and the reliability of 980 nm lasers and 1480 nm lasers are reviewed and discussed. In addition, packaging problems for the high power lasers are also discussed from the application viewpoint. For 980 nm lasers the reliability in laser chip is limited mainly by the instability of an interface between the laser material (facet) and the anti-reflecting coating film, and for most 1480 nm lasers the reliability of the laser chip is determined mainly by the instability of a buried heterointerface. These reliability problems have been solved, however, by examining the materi

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25

Jalil, Muhammad Arif Bin. "A Review On The He-Ne Laser System." International Journal for Research in Applied Science and Engineering Technology 12, no. 11 (2024): 1093–100. http://dx.doi.org/10.22214/ijraset.2024.65257.

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Abstract: The first continuous-wave (CW) laser to be created was the He-Ne laser. Ali Javan and his colleagues W. R. Bennet and D. R. Herriott revealed the production of a cw He-Ne laser a few months after Maiman declared his invention of the pulsed ruby laser. Neon atoms are excited by helium atoms in this four-level gas laser. The laser light is produced by the neon's atomic changes. Red light with a wavelength of 632.8 nm is produced by these lasers' most popular neon transition. In addition to producing various UV and IR wavelengths, these lasers may also produce green and yellow light in

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Liu, Bin, Yangfan Jiang, and Haining Ji. "Sensing by Dynamics of Lasers with External Optical Feedback: A Review." Photonics 9, no. 7 (2022): 450. http://dx.doi.org/10.3390/photonics9070450.

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External optical feedback (EOF) has great impacts on the properties of lasers. It influences the stable operation of lasers. However, various applications based on lasers with EOF have been developed. One typical example is self-mixing interferometry technology, where modulated steady-state laser intensity is utilized for sensing and measurement. Other works show that laser dynamics can also be used for sensing, and the laser in this case is more sensitive to EOF. This paper reviews the sensing technology that uses the dynamics of lasers with EOF. We firstly introduce the basic operating princ

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27

Freeman, William R., and Dirk‐Uwe Bartsch. "New ophthalmic lasers for the evaluation and treatment of retinal disease." Clinical & Experimental Ophthalmology 21, no. 3 (1993): 139–46. http://dx.doi.org/10.1111/j.1442-9071.1993.tb00002.x.

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AbstractOphthalmic lasers are used as diagnostic as well as therapeutic modalities in patients with retinal diseases. Recent advances in laser technology have allowed more convenient selection of wavelength and a wide variety of delivery systems is available to deliver the laser energy to the retina. In addition, newer lasers that disrupt and cut tissue will become available for use in patients with retinal diseases. The use of imaging lasers and lasers in combination with dyes selectively to enhance their effects have become useful in diagnosis and understanding of pathophysiology of diseases

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Kobtsev, Sergey. "Fibre Lasers: Promising Solutions." Photonics 12, no. 3 (2025): 200. https://doi.org/10.3390/photonics12030200.

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This work analyses promising solutions for controlling the output radiation properties of fibre lasers. The design of fibre lasers is radically different from that of other laser types. This is why many conventionally used solutions and approaches are incompatible with fibre lasers. Furthermore, fibre lasers following “all-fibre” designs also allow certain solutions that are impossible in other types of lasers. This work discusses those solutions, highlighting the promising applications for all-fibre lasers. Both the advantages and disadvantages of the very low sensitivity of the fibre laser c

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Li, Guanwei. "Research on U-band Fiber Lasers." Highlights in Science, Engineering and Technology 97 (May 28, 2024): 166–71. http://dx.doi.org/10.54097/vvxym768.

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The U-band fiber laser has attracted the attention of many researchers and industry due to its outstanding performance characteristics. U-band fiber laser is a type of laser that operates in the ultraviolet wavelength range, and its research background mainly stems from the demand for ultraviolet lasers in scientific research, medical treatment, material processing, and other fields. However, traditional ultraviolet lasers often use gas laser media, which have large volume, high power consumption, and high maintenance costs, limiting their promotion in practical applications. Therefore, resear

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Shetty, Sharath Kumar, Cecilia Wilson, Mahesh Kumar Y, and Vijayananda K. Madhur. "Lasers in Orthodontics." Scholars Journal of Dental Sciences 8, no. 7 (2021): 224–29. http://dx.doi.org/10.36347/sjds.2021.v08i07.007.

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Laser technique now is widely applied in orthodontic treatment and proved to have many benefits. Soft tissue lasers can be used to perform gingivectomy, frenectomy and surgical exposure of tooth with less bleeding and swelling, improved precision, reduced painand less wound contraction. Other laser applications include enamel etching and bonding andbracket debonding. Lower level lasers have the potential effects of pain control and accelerating tooth movement. Clinicians must be aware of the safety issues and risks associated with laser and receive proper training before the laser treatment is

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Liu, Songyang, Wenning Xu, Rongqing Tan, Fangjin Ning, and Zhiyong Li. "Theoretical Comparative Study on the Efficiency of High-Power Long-Distance Laser Power Transmission for Flight Systems." Photonics 12, no. 2 (2025): 143. https://doi.org/10.3390/photonics12020143.

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Wireless power transmission has become a research hotspot in the field of energy transmission, in which laser power transmission is one of the best methods for long-distance wireless transmission. Since laser has the advantages of high directivity, high energy density and no electromagnetic interference, laser power transmission technology can be applied to the energy supply of unmanned aerial vehicles (UAVs), micro-vehicles, airships and other flight systems. Long-distance laser power transmission can enable high-altitude flight systems to operate continuously without the need to return to th

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Chen, Yu-Cheng, and Ningyuan Nie. "(Invited) micro-Nanoscale Living Lasers for Healthcare Applications." ECS Meeting Abstracts MA2023-01, no. 34 (2023): 1915. http://dx.doi.org/10.1149/ma2023-01341915mtgabs.

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Have you imagined of carrying a laser in your cell or body? Lasers are ubiquitous in our daily lives from industry, communication to medicine. The scale of lasers has also shrunk down to micron and nanoscales. As the scale of laser become smaller, the functions of lasers have also been redefined by transforming living biologicals into micro- and nanoscale lasers, so called living lasers. Such tiny lasers could therefore be used to detect or monitor critical chemical or physical signals in living cells or human body with distinctive sensitivity and intensity. In this talk, I will introduce the

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BHATTACHARYA, PALLAB. "TUNNEL INJECTION LASERS." International Journal of High Speed Electronics and Systems 09, no. 04 (1998): 847–66. http://dx.doi.org/10.1142/s0129156498000361.

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Carrier heating in conventional quantum well lasers can lead to several deleterious effects and are related to the transport and thermalization characteristics of injected carriers. The properties of a quantum well laser in which the electrons are directly transported to the lasing subband by tunneling is described here. The resulting device — a tunnel injection laser — is shown to have negligible gain compression, superior high-temperature performance, lower Auger recombination and wavelength chirp, and better high frequency modulation characteristics when compared to conventional lasers. All

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Dmytryszyn, Mark, Matthew Crook, and Timothy Sands. "Preparing for Satellite Laser Uplinks and Downlinks." Sci 2, no. 1 (2020): 16. http://dx.doi.org/10.3390/sci2010016.

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The use of Light Amplification by Stimulated Emission of Radiation (i.e., LASERs or lasers) by the U.S. Department of Defense is not new and includes laser weapons guidance, laser-aided measurements, even lasers as weapons (e.g., Airborne Laser). Lasers in support of telecommunications is also not new. The use of laser light in fiber optics shattered thoughts on communications bandwidth and throughput. Even the use of lasers in space is no longer new. Lasers are being used for satellite-to-satellite crosslinking. Laser communication can transmit orders-of-magnitude more data using orders-of-ma

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Dmytryszyn, Mark, Matthew Crook, and Timothy Sands. "Lasers for Satellite Uplinks and Downlinks." Sci 2, no. 2 (2020): 44. http://dx.doi.org/10.3390/sci2020044.

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The use of Light Amplification by Stimulated Emission of Radiation (i.e., LASERs or lasers) by the U.S. Department of Defense is not new and includes laser weapons guidance, laser-aided measurements, even lasers as weapons (e.g., Airborne Laser). Lasers in support of telecommunications is also not new. The use of laser light in fiber optics shattered thoughts on communications bandwidth and throughput. Even the use of lasers in space is no longer new. Lasers are being used for satellite-to-satellite crosslinking. Laser communication can transmit orders-of-magnitude more data using orders-of-ma

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Dmytryszyn, Mark, Matthew Crook, and Timothy Sands. "Lasers for Satellite Uplinks and Downlinks." Sci 2, no. 3 (2020): 71. http://dx.doi.org/10.3390/sci2030071.

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The use of Light Amplification by Stimulated Emission of Radiation (i.e., LASERs or lasers) by the U.S. Department of Defense is not new and includes laser weapons guidance, laser-aided measurements, even lasers as weapons (e.g., Airborne Laser). Lasers in support of telecommunications is also not new. The use of laser light in fiber optics shattered thoughts on communications bandwidth and throughput. Even the use of lasers in space is no longer new. Lasers are being used for satellite-to-satellite crosslinking. Laser communication can transmit orders-of-magnitude more data using orders-of-ma

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Dmytryszyn, Mark, Matthew Crook, and Timothy Sands. "Lasers for Satellite Uplinks and Downlinks." Sci 3, no. 1 (2021): 4. http://dx.doi.org/10.3390/sci3010004.

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The use of Light Amplification by Stimulated Emission of Radiation (i.e., LASERs or lasers) by the U.S. Department of Defense is not new and includes laser weapons guidance, laser-aided measurements, and even lasers as weapons (e.g., Airborne Laser). Lasers in the support of telecommunications is also not new. The use of laser light in fiber optics has shattered thoughts on communications bandwidth and throughput. Even the use of lasers in space is no longer new. Lasers are being used for satellite-to-satellite crosslinking. Laser communication can transmit orders-of-magnitude more data using

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Gupta, Aditya K., Kelly A. Foley, and Sarah G. Versteeg. "Lasers for Onychomycosis." Journal of Cutaneous Medicine and Surgery 21, no. 2 (2016): 114–16. http://dx.doi.org/10.1177/1203475416677722.

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Many studies that have been recently published investigate the efficacy of laser treatment for onychomycosis. These studies support the current US Food and Drug Administration (FDA) approval of lasers for the ‘temporary increase in clear nail’. Clear nail growth is an important treatment goal for patients; however, many do not realise that laser treatment is not a cure for onychomycosis. The current article briefly reviews why lasers may be theoretically effective in treating onychomycosis and critically reviews published laser studies for onychomycosis in light of the standards employed in dr

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Stelmakh, N. "Sub-Picosecond Mode-Locked Laser Diodes." International Journal of High Speed Electronics and Systems 08, no. 03 (1997): 525–46. http://dx.doi.org/10.1142/s0129156497000196.

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Recent experiments have shown that laser diodes are capable generating nulses as short as 160 fs, thus approaching the performance of more conventional femtosecond lasers such as Tilsapphire lasers or dye lasers. Regular progress is also accomplished in terms of power and energy efficiency or spectral and spatial brightness with the development of novel semiconductor laser structures. In this paper, we review decisive improvements which have placed laser diodes in category of sub-picosecond lasers. A number of experimental results are used to illustrate the specific characteristics of short-pu

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Bertling, Karl, Xiaoqiong Qi, Thomas Taimre, Yah Leng Lim, and Aleksandar D. Rakić. "Feedback Regimes of LFI Sensors: Experimental Investigations." Sensors 22, no. 22 (2022): 9001. http://dx.doi.org/10.3390/s22229001.

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In this article, we revisit the concept of optical feedback regimes in diode lasers and explore each regime experimentally from a somewhat unconventional point of view by relating the feedback regimes to the laser bias current and its optical feedback level. The results enable setting the operating conditions of the diode laser in different applications requiring operation in different feedback regimes. We experimentally explored and theoretically supported this relationship from the standard Lang and Kobayashi rate equation model for a laser diode under optical feedback. All five regimes were

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JALIL, MUHAMMAD ARIF BIN. "A Study on the Carbon Dioxide Laser." International Journal for Research in Applied Science and Engineering Technology 12, no. 11 (2024): 1225–31. http://dx.doi.org/10.22214/ijraset.2024.65343.

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Abstract: One of the first gas lasers to be created was the carbon-dioxide laser (CO2 laser). One of the most practical kinds of lasers, it was created in 1964 by Bell Labs' Kumar Patel [22]. The most powerful continuous-wave lasers on the market right now are carbon-dioxide lasers. Additionally, they are quite efficient; the output power to pump power ratio can reach 20%. The primary wavelength bands of the infrared light beam produced by the CO2 laser are 9.6 and 10.6 micrometers (μm). [22] In order to improve its performance, a carbon dioxide laser uses carbon dioxide as its main gain mediu

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Rastogi, Vinay, and Shivanand Chaurasia. "Advances in and Future Perspectives on High-Power Ceramic Lasers." Photonics 11, no. 10 (2024): 942. http://dx.doi.org/10.3390/photonics11100942.

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Advancements in laser glass compositions and manufacturing techniques has allowed the development of a new category of high-energy and high-power laser systems which are being used in various applications, such as for fundamental research, material processing and inertial confinement fusion (ICF) technologies research. A ceramic laser is a remarkable revolution in solid state lasers. It exhibits crystalline properties, high yields, better thermal conductivity, a uniformly broadened emission cross-section, and a higher mechanical constant. Polycrystalline ceramic lasers combine the properties o

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Račiukaitis, Gediminas, and Kristina Ananičienė. "A small country with high ambitions." PhotonicsViews 20, no. 4 (2023): 34–36. http://dx.doi.org/10.1002/phvs.202300031.

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AbstractStarting from fundamental research just after the discovery of the laser, the Lithuanian laser industry is celebrating forty years since the first commercial company, Eksma, was established in 1983 to produce picosecond lasers. The sector has grown into a fully self‐sustaining ecosystem, providing optics, ultrashort‐pulse lasers, laser technology and systems to the global market. Today, lasers and optics are one of Lithuania's strongest and highest value‐added industrial sectors.

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Castelo‐Porta, Antonio. "“The trick is to find out where those opportunities are”." PhotonicsViews 20, no. 4 (2023): 23–25. http://dx.doi.org/10.1002/phvs.202370405.

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S, Rajyalakshmi, Lavanya Jyothi M, Kumari M, et al. "Data transmission through lasers." South Asian Journal of Engineering and Technology 12, no. 3 (2022): 167–70. http://dx.doi.org/10.26524/sajet.2022.12.54.

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In the current era technology in science has recently attracted owing the advancement of applications in lasers. A project on the applications of the laser introduced. The application part of the laser has been applied by simple laser communication system which evolved in its working with the support of solar panel, differential grating. It also provides the information how the data is transmitted through lasers.

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Meshram, Ishwar, and Kashinath Choudhary. "LASERS IN OPHTHALMOLOGY." International Journal of Advanced Research 11, no. 01 (2023): 781–86. http://dx.doi.org/10.21474/ijar01/16082.

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This article reviews the principle uses of ophthalmic lasers, providing historical background with an emphasis on new applications and areas of investigation. Ophthalmic photocoagulation was the first medical laser application and has restored or maintained vision in millions of people. The use of ophthalmic lasers is becoming increasingly widespread, with most eye departments now having at least one type of laser. Many patients are treated withlasers and many more request such treatment, even when it is not indicated. The indications for ophthalmic lasers are constantly changing as experience

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Nalcaci, Ruhi, and Serpil Cokakoglu. "Lasers in orthodontics." European Journal of Dentistry 07, S 01 (2013): S119—S125. http://dx.doi.org/10.4103/1305-7456.119089.

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ABSTRACTMany types of dental lasers are currently available that can be efficiently used for soft and hard tissue applications in the field of orthodontics. For achieving the desired effects in the target tissue, knowledge of laser characteristics such as power, wavelength and timing, is necessary. Laser therapy is advantageous because it often avoids bleeding, can be pain free, is non-invasive and is relatively quick. The high cost is its primary disadvantage. It is very important to take the necessary precautions to prevent possible tissue damage when using laser dental systems. Here, we rev

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Bhavika, Gupta1, Sikri2 Arpit, Marwaha3 Urvi, Kalra4 Tarun, and Wadehra 5. Aryan. "Trends in Usage of Dental Lasers and iIts Perception Amongst Dental Surgeons of Northwest India - A Cross Sectional Survey." A Journal of Advanced Dentistry Updent 12, no. 01 (2023): 17–23. https://doi.org/10.6947/zenodo.8657891.

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Abstract      Background: Despite being around since 1960s in the field of medicine, the acceptance of Lasers is still limited in dental practices. This study is to evaluate the prevalence of Lasers, its practice for periodontal procedures in dental clinics of Delhi NCR and Chandigarh Tricity (North-West India region) and to assess the perception of dental surgeons towards training, patient acceptance, and possible trend in usage in a post COVID 19 era.      Methods: An online, validated questionnaire of 25 questions was distributed amongst 200 dental su

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ANDREASEN, JONATHAN, NICOLAS BACHELARD, SHIVAKIRAN B. N. BHAKTHA, HUI CAO, PATRICK SEBBAH, and CHRISTIAN VANNESTE. "PARTIALLY PUMPED RANDOM LASERS." International Journal of Modern Physics B 28, no. 05 (2014): 1430001. http://dx.doi.org/10.1142/s0217979214300011.

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Conventional lasers consist of two components: a gain material that is pumped in order to provide amplification of light and a cavity to provide feedback. Random lasers replace the traditional laser cavity with a random, multiple-scattering medium. This can give rise to complex lasing behavior, such as unpredictable multidirectional and multifrequency output. Controlling these systems has proved difficult and, until now, has consisted of material and structural manipulations. In random lasers, the most common pumping mechanism is an optical field, which can be applied uniformly or partially ac

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Chaisrimaneepan, Nattanicha. "Pitfalls in Laser-Based Device Tattoo Removal: A Literature Review." SKIN The Journal of Cutaneous Medicine 8, no. 2 (2024): 1384–95. http://dx.doi.org/10.25251/skin.8.2.4.

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Laser therapy has been popular and widely used for tattoo removal. Basic principles for utilizing lasers in tattoo removal for different types and colors of tattoos are required to minimize and avoid unwanted side effects. Appropriate parameters of lasers are not the only keys to successful laser removal treatment. In this review, common pitfalls in removing tattoos with lasers are discussed. Several factors should be taken into consideration and realistic goals should be discussed at the first encounter with patients. Non-ablative lasers may apply to a simple tattoo without any cutaneous reac

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