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Journal articles on the topic 'ECDL laser'

Author: Grafiati

Published: 10 March 2023

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1

Zhang, Linbo, Tao Liu, Long Chen, et al. "Development of an Interference Filter-Stabilized External-Cavity Diode Laser for Space Applications." Photonics 7, no. 1 (2020): 12. http://dx.doi.org/10.3390/photonics7010012.

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The National Time Service Center of China is developing a compact, highly stable, 698 nm external-cavity diode laser (ECDL) for dedicated use in a space strontium optical clock. This article presents the optical design, structural design, and preliminary performance of this ECDL. The ECDL uses a narrow-bandwidth interference filter for spectral selection and a cat’s-eye reflector for light feedback. To ensure long-term stable laser operation suitable for space applications, the connections among all the components are rigid and the design avoids any spring-loaded adjustment. The frequency of t

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2

Heng, Zhao, Xiao Xiao, Li Bo, Wang Wen Jin, Hu Yi, and Wang Youqin. "Theoretical investigation of a tunable external cavity diode laser based on a single cavity all-dielectric thin-film Fabry–Perot filter." International Journal of Modern Physics C 27, no. 01 (2016): 1650005. http://dx.doi.org/10.1142/s0129183116500054.

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The single cavity all-dielectric thin film Fabry–Perot filter (s-AFPF) has been theoretically investigated in this paper as a means of tuning the wavelength in an external cavity diode laser (ECDL), and the means of limiting longitudinal mode hopping has been also theoretically investigated. When a TE or TM plane wave irradiates an s-AFPF, a quasi-linear relationship is found in a certain wavelength range between the optical intensity peak transmittance wavelength of s-AFPF and the cosine value of plane wave incident angle at s-AFPF. Based on this feature, we proposed and theoretically investi

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3

Preuschoff, Tilman, Patrick Baus, Malte Schlosser, and Gerhard Birkl. "Wideband current modulation of diode lasers for frequency stabilization." Review of Scientific Instruments 93, no. 6 (2022): 063002. http://dx.doi.org/10.1063/5.0093520.

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We present a current modulation technique for diode laser systems, which is specifically designed for high-bandwidth laser frequency stabilization and wideband frequency modulation with a flat transfer function. It consists of a dedicated current source and an impedance matching circuit both placed close to the laser diode. The transfer behavior of the system is analyzed under realistic conditions employing an external cavity diode laser (ECDL) system. We achieve a phase lag smaller than 90° up to 25 MHz and a gain flatness of ±3 dB in the frequency range of DC to 100 MHz, while the passive st

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Peng, Xiqing, Weixuan Luo, Yun Bai, et al. "Study of wavelength-switchable watt-level blue external cavity diode laser for NO₂ S-DIAL." Laser Physics 33, no. 1 (2022): 015801. http://dx.doi.org/10.1088/1555-6611/aca6de.

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Abstract A 2.3 W wavelength-switchable blue external cavity diode laser (ECDL) was studied. The laser was built on Littrow configuration and a piezoelectric ceramic transducer (PZT) driver was employed to change the Littrow angle for wavelength tuning. Its emitting wavelength can be switched between 447.46 nm and 448.10 nm which are the required wavelengths for NO2 differential absorption lidar application. The measured spectral linewidth of the proposed ECDL was 0.08 nm. The main peak was at least 35 dB stronger than its adjacent freely running emission peak and background amplified spontaneo

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Khalid, Dastan. "Dark State Magnetometer Based on Enhanced Acousto-Optics Modulator." Applied Sciences 12, no. 22 (2022): 11324. http://dx.doi.org/10.3390/app122211324.

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We report on detailed experimental setup and the results of an enhanced acousto-optics modulator (AOM) setup for observation of a dark state magnetometer. A Λ-type dark state based on D1 line of 87Rb:F=2→F′=1 Zeeman sub-levels with neon (Ne) buffer gas was created using a single laser and a scanning acousto-optics modulator. The technical challenges in using this method and how to overcome these difficulties are discussed, and we report on the observation of a dark state resonance with linewidth of 168 Hz and a detectable magnetic field of 9 nT. This method offers many advantages, including th

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6

Wang, Yan, Hao Wu, Chao Chen, et al. "An Ultra-High-SMSR External-Cavity Diode Laser with a Wide Tunable Range around 1550 nm." Applied Sciences 9, no. 20 (2019): 4390. http://dx.doi.org/10.3390/app9204390.

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In this paper, a widely tunable external cavity diode laser (ECDL) with an ultra-high side mode suppression ratio (SMSR) was fabricated. Three configurations were constructed to investigate the relationship between the grating features and the SMSR. When a 1200 grooves/mm grating with a first order diffraction efficiency of 91% is utilized in the external-cavity laser system, a maximum SMSR of 65 dB can be achieved. In addition, the tunable range reaches 209.9 nm. The results show that the laser performance can be improved by proper high grating groove number and first-order diffraction effici

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7

Shen, Ze-Min, Xiao-Long Zhou, Dong-Yu Huang, et al. "Continuously and widely tunable frequency-stabilized laser based on an optical frequency comb." Review of Scientific Instruments 94, no. 2 (2023): 023001. http://dx.doi.org/10.1063/5.0120119.

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Continuously and widely tunable lasers, actively stabilized on a frequency reference, are broadly employed in atomic, molecular, and optical (AMO) physics. The frequency-stabilized optical frequency comb (OFC) provides a novel optical frequency reference, with a broadband spectrum that meets the requirement of laser frequency stabilization. Therefore, we demonstrate a frequency-stabilized and precisely tunable laser system based on it. In this scheme, the laser frequency locked to the OFC is driven to jump over the ambiguity zones, which blocks the wide tuning of the locked laser, and tuned un

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8

Nehrir, Amin R., Kevin S. Repasky, John L. Carlsten, Michael D. Obland, and Joseph A. Shaw. "Water Vapor Profiling Using a Widely Tunable, Amplified Diode-Laser-Based Differential Absorption Lidar (DIAL)." Journal of Atmospheric and Oceanic Technology 26, no. 4 (2009): 733–45. http://dx.doi.org/10.1175/2008jtecha1201.1.

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Abstract A differential absorption lidar (DIAL) instrument for automated profiling of water vapor in the lower troposphere has been designed, tested, and is in routine operation at Montana State University. The laser transmitter for the DIAL instrument uses a widely tunable external cavity diode laser (ECDL) to injection seed two cascaded semiconductor optical amplifiers (SOAs) to produce a laser transmitter that accesses the 824–841-nm spectral range. The DIAL receiver utilizes a 28-cm-diameter Schmidt–Cassegrain telescope; an avalanche photodiode (APD) detector; and a narrowband optical filt

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9

Nehrir, Amin R., Kevin S. Repasky, and John L. Carlsten. "Eye-Safe Diode-Laser-Based Micropulse Differential Absorption Lidar (DIAL) for Water Vapor Profiling in the Lower Troposphere." Journal of Atmospheric and Oceanic Technology 28, no. 2 (2011): 131–47. http://dx.doi.org/10.1175/2010jtecha1452.1.

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Abstract A second-generation diode-laser-based master oscillator power amplifier (MOPA) configured micropulse differential absorption lidar (DIAL) instrument for profiling of lower-tropospheric water vapor is presented. The DIAL transmitter is based on a continuous wave (cw) external cavity diode laser (ECDL) master oscillator that is used to injection seed two cascaded tapered semiconductor optical power amplifiers, which deliver up to 2-μJ pulse energies over a 1-μs pulse duration at 830 nm with an average power of ∼40 mW at a pulse repetition frequency of 20 kHz. The DIAL receiver utilizes

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10

Horstjann, M., M. D. Andrés Hernández, V. Nenakhov, A. Chrobry, and J. P. Burrows. "Peroxy radical detection for airborne atmospheric measurements using absorption spectroscopy of NO<sub>2</sub>." Atmospheric Measurement Techniques 7, no. 5 (2014): 1245–57. http://dx.doi.org/10.5194/amt-7-1245-2014.

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Abstract. Development of an airborne instrument for the determination of peroxy radicals (PeRCEAS – peroxy radical chemical enhancement and absorption spectroscopy) is reported. Ambient peroxy radicals (HO2 and RO2, R being an organic chain) are converted to NO2 in a reactor using a chain reaction involving NO and CO. Provided that the amplification factor, called effective chain length (eCL), is known, the concentration of NO2 can be used as a proxy for the peroxy radical concentration in the sampled air. The eCL depends on radical surface losses and must thus be determined experimentally for

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11

Qian, Jiaping, Lei Zhang, Huawei Jiang, Shuzhen Cui, Jiaqi Zhou, and Yan Feng. "2 W single-frequency, low-noise 509 nm laser via single-pass frequency doubling of an ECDL-seeded Yb fiber amplifier." Applied Optics 57, no. 29 (2018): 8733. http://dx.doi.org/10.1364/ao.57.008733.

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12

Zhao, Douyan, Zhaoyang Zhang, Hao Zhu, Zenghui Cao, and Kun Xu. "An Investigation into Laser-Assisted Electrochemical Discharge Machining of Transparent Insulating Hard-Brittle Material." Micromachines 12, no. 1 (2020): 22. http://dx.doi.org/10.3390/mi12010022.

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Electrochemical discharge machining (ECDM) and laser machining are emerging nontraditional machining technologies suitable for micro-processing of insulating and hard-brittle materials typified by glass. However, poor machinability of glass is a major constraint, which remains to be solved. For the micro-grooves processed by ECDM, the bottom surface is usually uneven and associated with protrusion structures, while the edges are not straight with obvious wave-shaped heat-affected zones (HAZs) and over-cutting. Besides, the cross section of the micro-grooves processed by the laser is V-shape wi

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13

Bornheim, A. "The CMS ECAL Laser Monitoring System." Nuclear Physics B - Proceedings Supplements 197, no. 1 (2009): 219–23. http://dx.doi.org/10.1016/j.nuclphysbps.2009.10.071.

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14

Rogan, Christopher. "Laser monitoring for the CMS ECAL." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 623, no. 1 (2010): 267–69. http://dx.doi.org/10.1016/j.nima.2010.02.217.

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15

Lieber, R. L., B. O. Ljung, and J. Fridén. "Intraoperative sarcomere length measurements reveal differential design of human wrist extensor muscles." Journal of Experimental Biology 200, no. 1 (1997): 19–25. http://dx.doi.org/10.1242/jeb.200.1.19.

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The design of the wrist extensor muscles was studied using a combination of intraoperative laser diffraction and biomechanical modelling of data obtained from human patients and previously published data. Intraoperatively, the change in sarcomere length per degree joint angle rotation (i.e. dSL/d omega) was measured as the wrist was moved from neutral to full flexion in both the extensor carpi radialis brevis (ECRB) and extensor carpi radialis longus (ECRL) muscles. Sarcomere length change per degree rotation was approximately twice as great for the ECRB compared with the ECRL muscle (9.06 +/-

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16

Timciuc, Vladlen, and the Cms Ecal Group. "Database usage in the CMS ECAL laser monitoring system." Journal of Physics: Conference Series 219, no. 2 (2010): 022045. http://dx.doi.org/10.1088/1742-6596/219/2/022045.

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17

Blaj, Diana-Andreea, Marek Kowalczuk, and Cristian Peptu. "Mass Spectrometry of Esterified Cyclodextrins." Molecules 28, no. 5 (2023): 2001. http://dx.doi.org/10.3390/molecules28052001.

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Cyclodextrins are cyclic oligosaccharides that have received special attention due to their cavity-based structural architecture that imbues them with outstanding properties, primarily related to their capacity to host various guest molecules, from low-molecular-mass compounds to polymers. Cyclodextrin derivatization has been always accompanied by the development of characterization methods, able to unfold complicated structures with increasing precision. One of the important leaps forward is represented by mass spectrometry techniques with soft ionization, mainly matrix-assisted laser desorpt

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18

Fawzy, Ahmed, Osama M. El-Ghandour, and Hesham F. A. Hamed. "Performance Analysis on a Dual External Cavity Tunable Laser ECTL Source." Journal of Electromagnetic Analysis and Applications 07, no. 04 (2015): 134–39. http://dx.doi.org/10.4236/jemaa.2015.74015.

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19

Chu, Raymond R., and Wilson T. C. Wong. "Miniaturized external cavity laser (ECL) implemented with acoustic optical tunable filter." Journal of the Acoustical Society of America 119, no. 2 (2006): 682. http://dx.doi.org/10.1121/1.2174407.

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20

Savchenko, Y. "Study of radiation damage and possible upgrade of the CMS ECAL Laser Monitoring system." Journal of Physics: Conference Series 1337 (October 2019): 012007. http://dx.doi.org/10.1088/1742-6596/1337/1/012007.

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21

Sung, Youl-Moon. "Investigation of Glass Substrate Sealing for ECL Application using Laser Welding Technology." Journal of the Korean Institute of Illuminating and Electrical Installation Engineers 29, no. 12 (2015): 28–32. http://dx.doi.org/10.5207/jieie.2015.29.12.028.

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22

Perazzini, Stefano, Fabio Ferrari, and Vincenzo Maria Vagnoni. "Development of an MCP-Based Timing Layer for the LHCb ECAL Upgrade-2." Instruments 6, no. 1 (2022): 7. http://dx.doi.org/10.3390/instruments6010007.

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The increase in instantaneous luminosity during the high-luminosity phase of the LHC represents a significant challenge for future detectors. A strategy to cope with high-pileup conditions is to add a fourth dimension to the measurements of the hits, by exploiting the time separation of the various proton–proton primary collisions. According to LHCb simulation studies, resolutions of about 10–20 picoseconds, at least an order of magnitude shorter than the average time span between primary interactions, would be greatly beneficial for the physics reach of the experiment. Microchannel plate (MCP

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23

Office, Editorial. "Congratulations! The Best Paper Award & Best Review Award 2016." International Journal of Automation Technology 10, no. 6 (2016): 851. http://dx.doi.org/10.20965/ijat.2016.p0851.

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The seventh Best Paper Award 2016 ceremony was held at Guimaraes, Portugal, August 24, 2016 in the 66th CIRP General Assembly, and the second Best Review Award 2016 ceremony was held at Kasumigaseki, Tokyo, September 23, 2016, attended by the winners and IJAT committee members who took part in the selection process. The Best Paper was severely selected from among 85 papers published in Vol.9 (2015) and the Best Review was selected from 10 reviews published from 2013 to 2016. The Best Paper Award winner was given a certificate with a nearly US$1,000 honorarium and the Best Review Award winner w

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Office, Editorial. "Congratulations! The Best Paper Award & Best Review Award 2016." International Journal of Automation Technology 10, no. 6 (2016): 851. http://dx.doi.org/10.20965/ijat.2016.p851.

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The seventh Best Paper Award 2016 ceremony was held at Guimaraes, Portugal, August 24, 2016 in the 66th CIRP General Assembly, and the second Best Review Award 2016 ceremony was held at Kasumigaseki, Tokyo, September 23, 2016, attended by the winners and IJAT committee members who took part in the selection process. The Best Paper was severely selected from among 85 papers published in Vol.9 (2015) and the Best Review was selected from 10 reviews published from 2013 to 2016. The Best Paper Award winner was given a certificate with a nearly US$1,000 honorarium and the Best Review Award winner w

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25

Esporcatte, Louise Pellegrino Gomes, Marcella Q. Salomão, Alexandre Batista da Costa Neto, Aydano P. Machado, Bernardo T. Lopes, and Renato Ambrósio. "Enhanced Diagnostics for Corneal Ectatic Diseases: The Whats, the Whys, and the Hows." Diagnostics 12, no. 12 (2022): 3027. http://dx.doi.org/10.3390/diagnostics12123027.

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There are different fundamental diagnostic strategies for patients with ectatic corneal diseases (ECDs): screening, confirmation of the diagnosis, classification of the type of ECD, severity staging, prognostic assessment, and clinical follow-up. The conscious application of such strategies enables individualized treatments. The need for improved diagnostics of ECD is related to the advent of therapeutic refractive procedures that are considered prior to keratoplasty. Among such less invasive procedures, we include corneal crosslinking, customized ablations, and intracorneal ring segment impla

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26

Coops, Nicholas C., Piotr Tompalski, Wiebe Nijland, et al. "Corrigendum to “A forest structure habitat index based on airborne laser scanning data” [Ecol. Indic. 67 (August) (2016) 346–357]." Ecological Indicators 70 (November 2016): 644. http://dx.doi.org/10.1016/j.ecolind.2016.06.048.

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27

Hasiuk, P. A., O. A. Krasnokutskiy, A. B. Vorobets, N. V. Huda, and S. O. Rosolovska. "Mechanisms of remodeling oral soft tissues (literature review)." Experimental and Clinical Dentistry 06-07, no. 1-2 (2019): 12–17. http://dx.doi.org/10.35339/ecd.2019.1-2.12-17.

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Based on the analysis of modern literature, a systematization of information of the soft tissues of the oral cavity remodeling mechanisms after surgical interventions was carried out. Priority area in modern medical practice is the development and use of such methods and drugs that combine maximum safety and high biological activity in relation to body tissues. A number of scientists have proposed and introduced into practical medicine the technology of programmed scar remodeling. According to this technique, injections of antihomotoxic substances directly around the surgical wound are require

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28

Galaverna, Federica, Robert Wynn, Patrizia Comoli, et al. "1732. Adenovirus Load Dynamics Are Consistently Correlated With Risk of Mortality in Pediatric Allogeneic Hematopoietic Cell Transplant Recipients: Findings From the Landmark AdVance Study." Open Forum Infectious Diseases 5, suppl_1 (2018): S58—S59. http://dx.doi.org/10.1093/ofid/ofy209.138.

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Abstract Background Adenovirus (AdV) infection is an important cause of mortality among allogeneic hematopoietic cell transplant (allo-HCT) recipients. Current European Conference of Infections in Leukemia (ECIL-4) guidelines support weekly AdV screening for those at-risk and pre-emptive antiviral treatment with off-label cidofovir when adenoviremia is detected. However, there is limited understanding of the relative prognostic strength of different dynamic AdV viral load measures. We examined the association between adenovirus viral load dynamics and mortality in pediatric allo-HCT recipients

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29

Samarasena, Jason B., Kenneth J. Chang, Amrita Ahluwalia, et al. "681 Novel Insight Into Gastric Enteric Nervous System Using EUS-Guided Needle Based Confocal Laser Endomicroscopy, Neuronal Probe and Molecular Imaging. Evidence for Common Mediators and Cross-Talk Between Neural Epithelial & ECL Cells." Gastroenterology 146, no. 5 (2014): S—121. http://dx.doi.org/10.1016/s0016-5085(14)60435-2.

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30

Hambright, Heather G., Anand V. R. Kornepati, Dai Ogata, et al. "Abstract B10: High-dimensional (30-plex) imaging mass cytometry on tissue microarray identifies novel PD-L1-inclusive immunophenotypes associated with overall survival in stage III melanoma." Cancer Research 80, no. 19_Supplement (2020): B10. http://dx.doi.org/10.1158/1538-7445.mel2019-b10.

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Abstract We sought to determine the subcellular distribution of 30+ immune-related markers including PD-L1 in stage III melanoma tumor tissues (nuclear, cytoplasmic, surface) using novel imaging mass cytometry technology that enables simultaneous detection of over 30 immune and tumor markers. Metal-tagged antibodies were used to stain stage III melanoma tissues similarly to an IHC-based protocol, followed by laser ablation and mass cytometry using the Helios® and Hyperion® technology (Fluidigm). Markers for immune subsets included CD45, CD3, CD4, CD8, PD-1, Granzyme B, FoxP3, CD11b, CD11c, CD1

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31

Chao, Wang, Zhou Zhijian, and Cheng Defu. "Research on the signal of 4He pump magnetometer sensor using ECDL laser." Biomedical Research, 2018. http://dx.doi.org/10.4066/biomedicalresearch.29-17-752.

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32

"An Novel Atomic Scalar Magnetometer Using Laser." International Journal of Circuits, Systems and Signal Processing 14 (April 30, 2020). http://dx.doi.org/10.46300/9106.2020.14.14.

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The measurement precision of commercial atom scalar magnetometer is relatively backward compared with that of quantum magnetometer. However, the application of quantum magnetometers such as SERF requires more stringent environmental background requirements, which is not suitable for magnetic field measurement in the geomagnetic environment. The purpose of this paper is to design a 4He atom scalar magnetometer using ECDL laser. Compared with the conventional atomic scalar magnetometer, this magnetometer has higher measuring precision and can work normally in the geomagnetic environment. In orde

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33

Pham, Tiffany T., Anna M. Stokolosa, Pamela A. Borden, et al. "Electrochemical degradation and saponification of porcine adipose tissue." Scientific Reports 10, no. 1 (2020). http://dx.doi.org/10.1038/s41598-020-76678-y.

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AbstractBody contouring achieved via subcutaneous adipose tissue reduction has notably advanced over the past century, from suction assisted lipectomy to techniques with reduced degrees of invasiveness including laser, radiofrequency, high frequency focused ultrasound, cryolipolysis, and drug-based injection approaches. These costly techniques have focused on damaging adipocyte cell membranes, hydrolyzing triglycerides (TGs), or inducing apoptosis. Here, we present a simple, low-cost technique, termed electrochemical lipolysis (ECLL). During ECLL, saline is injected into the subcutaneous adipo

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34

Tappang, Renta, Harry Sumual, and Laya Rares. "INDIKASI FOTOKOAGULASI LASER PADA PASIEN RETINOPATI DIABETIK DI BALAI KESEHATAN MATA PROPINSI SULAWESI UTARA PERIODE JANUARI – DESEMBER 2012." e-CliniC 2, no. 1 (2014). http://dx.doi.org/10.35790/ecl.2.1.2014.3599.

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Abstract: Diabetic retinopathy is one of the vascular disorders that can occur in type 1 and 2 diabetes mellitus cases after 10-15 years. Treatment of diabetic retinopathy is based on its severity; one of the treatment is laser photocoagulation.This study aimed to find out the indication of laser photocoagulation procedure among diabetic retinopathy cases at BKMM North Sulawesi Province. This was a descriptive retrospective study using the medical records of diabetic retinopathy cases who underwent laser photocoagulation. There were 35 cases as samples who underwent laser photocoagulation duri

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Boedihardjo, Gita P., Vera Sumual, and Imelda Najoan. "Profil Pasien Operasi Vitreoretinal di Instalasi Bedah Sentral RSUP Prof. Dr. R. D. Kandou Manado Periode Juli 2018 – Juli 2019." e-CliniC 7, no. 2 (2019). http://dx.doi.org/10.35790/ecl.7.2.2019.26879.

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Abstract: Retinal disorders are ranked as the fourth most common eye disease in Indonesia. Retinal and vitreous disorders can cause severe visual impairment and even blindness. This study was aimed to determine the profile of patients undergoing vitrectomy at the Central Surgical Installation of Prof. Dr. R. D. Kandou Hospital Manado form July 2018 - July 2019. This was a retrospective and descriptive study using medical record data of vitreoretinal surgery patients. The results showed that there were 31 patients who underwent vitreoretinal surgery, consisting of 16 males (51.6%) and 15 female

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Xu, Yilin, Pascal Maier, Matthias Blaicher, et al. "Hybrid external-cavity lasers (ECL) using photonic wire bonds as coupling elements." Scientific Reports 11, no. 1 (2021). http://dx.doi.org/10.1038/s41598-021-95981-w.

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AbstractCombining semiconductor optical amplifiers (SOA) on direct-bandgap III–V substrates with low-loss silicon or silicon-nitride photonic integrated circuits (PIC) has been key to chip-scale external-cavity lasers (ECL) that offer wideband tunability along with small optical linewidths. However, fabrication of such devices still relies on technologically demanding monolithic integration of heterogeneous material systems or requires costly high-precision package-level assembly, often based on active alignment, to achieve low-loss coupling between the SOA and the external feedback circuits.

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37

Maier, Pascal, Yung Chen, Yilin Xu, et al. "Sub-kHz-linewidth external-cavity laser (ECL) with Si₃N₄ resonator used as a tunable pump for a Kerr frequency comb." Journal of Lightwave Technology, 2023, 1–11. http://dx.doi.org/10.1109/jlt.2023.3243471.

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