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Articoli di riviste sul tema "Laser communication systems"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 5 marzo 2023

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1

Ke, Qiang. "Numerical Simulation of Chaotic Laser Secure Communication." Advanced Materials Research 798-799 (September 2013): 570–73. http://dx.doi.org/10.4028/www.scientific.net/amr.798-799.570.

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Using the idea of drive-response synchronization, we discuss the principle, numerical simulation of chaotic laser communication. Compared to traditional communications systems, the chaotic laser communication system has a well-kept secret performance, but the chaos synchronization requirements are very strict.

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2

Pengyuan Chang, Pengyuan Chang, Tiantian Shi Tiantian Shi, Shengnan Zhang Shengnan Zhang, Haosen Shang Haosen Shang, Duo Pan Duo Pan, and Jingbiao Chen Jingbiao Chen. "Faraday laser at Rb 1529 nm transition for optical communication systems." Chinese Optics Letters 15, no. 12 (2017): 121401. http://dx.doi.org/10.3788/col201715.121401.

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3

Zeng Fengjiao, 曾凤娇, 杨康建 Yang Kangjian, 晏旭 Yan Xu, 赵孟孟 Zhao Mengmeng, 杨平 Yang Ping, and 文良华 Wen Lianghua. "Research Progress on Underwater Laser Communication Systems." Laser & Optoelectronics Progress 58, no. 3 (2021): 0300002–30000226. http://dx.doi.org/10.3788/lop202158.0300002.

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4

Cai, Chengkun, and Jian Wang. "Femtosecond Laser-Fabricated Photonic Chips for Optical Communications: A Review." Micromachines 13, no. 4 (April 16, 2022): 630. http://dx.doi.org/10.3390/mi13040630.

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Integrated optics, having the unique properties of small size, low loss, high integration, and high scalability, is attracting considerable attention and has found many applications in optical communications, fulfilling the requirements for the ever-growing information rate and complexity in modern optical communication systems. Femtosecond laser fabrication is an acknowledged technique for producing integrated photonic devices with unique features, such as three-dimensional fabrication geometry, rapid prototyping, and single-step fabrication. Thus, plenty of femtosecond laser-fabricated on-ch

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5

Strakhov, S. Yu, A. V. Trilis, and N. V. Sotnikova. "Specifics of transmitting telescopes for laser communication systems." Journal of Optical Technology 88, no. 5 (May 1, 2021): 264. http://dx.doi.org/10.1364/jot.88.000264.

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6

Giuliano, Giovanni, Leslie Laycock, Duncan Rowe, and Anthony E. Kelly. "Solar rejection in laser based underwater communication systems." Optics Express 25, no. 26 (December 20, 2017): 33066. http://dx.doi.org/10.1364/oe.25.033066.

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7

Moatlhodi, Ogomoditse O., Nonofo M. J. Ditshego, and Ravi Samikannu. "Vertical Cavity Surface Emitting Lasers as Sources for Optical Communication Systems: A Review." Journal of Nano Research 65 (December 2020): 51–96. http://dx.doi.org/10.4028/www.scientific.net/jnanor.65.51.

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Next generation integrated photonic circuits will be dominated by small footprint devices with lower power consumption, low threshold currentsand high efficiencies. Vertical Cavity Surface Emitting Lasers (VCSELs) having those attractive qualities has shown results to meet the next generation demands for optical communication sources. VCSELs applications are sensors, data com, optical communication, spectroscopy, printers, optical storage, laser displays, atomic optical clocks, laser radar, optical signal processing to name a few. This review centres around on the basic operation of semiconduc

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8

Niu, Shen, Yue Song, Ligong Zhang, Yongyi Chen, Lei Liang, Ye Wang, Li Qin, et al. "Research Progress of Monolithic Integrated DFB Laser Arrays for Optical Communication." Crystals 12, no. 7 (July 21, 2022): 1006. http://dx.doi.org/10.3390/cryst12071006.

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Photonic integrated circuits (PICs) play a leading role in modern information and communications technology. Among the core devices in PICs is the distributed feedback (DFB) multi-wavelength semiconductor laser array. Multi-wavelength semiconductor laser arrays can be integrated on a single chip and have the advantages of high stability, good single-mode performance, and narrow line width. The wavelength tuning range has been expanded through the design of the DFB laser array, which is an ideal light source for wavelength-division multiplexing systems. The preparation of DFB laser arrays with

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9

Dmytryszyn, Mark, Matthew Crook, and Timothy Sands. "Preparing for Satellite Laser Uplinks and Downlinks." Sci 2, no. 1 (March 18, 2020): 16. http://dx.doi.org/10.3390/sci2010016.

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Abstract (sommario):

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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10

Laksono, Pranoto Budi. "A STUDY OF THE INFLUENCE OF 650 nm LASER INTERFERENCE ON VISIBLE LASER LIGHT COMMUNICATION SYSTEM." TEKNOKOM 4, no. 2 (September 1, 2021): 60–65. http://dx.doi.org/10.31943/teknokom.v4i2.66.

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Visible Laser Light Communication System (VLLC) is a wireless communication system, using laser as the medium. In the data transfer process, it is possible to have optical interference where 2 laser beams coincide with one point on the reflector. Research on the effect of laser source interference has been carried out by several researchers including mitigation actions to reduce its effects. This experiment uses 2 optical distance sensors that produce a laser with a wavelength of 650 nm with a power <=4.1 mW and with the direction of the laser beam both of them cross each other. To determin

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11

VANWIGGEREN, GREGORY D., and RAJARSHI ROY. "CHAOTIC COMMUNICATION USING TIME-DELAYED OPTICAL SYSTEMS." International Journal of Bifurcation and Chaos 09, no. 11 (November 1999): 2129–56. http://dx.doi.org/10.1142/s0218127499001565.

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We discuss experimental demonstrations of chaotic communication in several optical systems. In each, an erbium-doped fiber ring laser (EDFRL) produces chaotic fluctuations of light intensity onto which is modulated a message consisting of a sequence of pseudorandom digital bits. This combination of chaos and message propagates at a wavelength of ~ 1.5 microns through standard single-mode optical fiber from the transmitter to a receiver, where the message is recovered from the chaos. We present evidence of the high-dimensional nature of the chaotic waveforms and demonstrate chaotic communicatio

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12

Fuhr, P. L. "Laser Diode Polarization Beam Combiners In Optical Communication Systems." Optical Engineering 25, no. 2 (February 1, 1986): 252309. http://dx.doi.org/10.1117/12.7973821.

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13

Jacob, J. M., E. A. Golovchenko, and G. M. Carter. "Phase modulated pulsed laser for WDM soliton communication systems." Electronics Letters 33, no. 6 (1997): 515. http://dx.doi.org/10.1049/el:19970292.

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14

Baskakova, A. V., S. N. Kuznetsov, and S. E. Shirobakin. "Design of athermal optical systems for wireless laser communication." Lasers. Measurements. Information 2, no. 3 (2022): 9–19. http://dx.doi.org/10.51639/2713-0568_2022_2_3_9.

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15

Hu, Hao, and Leif K. Oxenløwe. "Chip-based optical frequency combs for high-capacity optical communications." Nanophotonics 10, no. 5 (February 3, 2021): 1367–85. http://dx.doi.org/10.1515/nanoph-2020-0561.

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Abstract (sommario):

AbstractCurrent fibre optic communication systems owe their high-capacity abilities to the wavelength-division multiplexing (WDM) technique, which combines data channels running on different wavelengths, and most often requires many individual lasers. Optical frequency combs, with equally spaced coherent comb lines derived from a single source, have recently emerged as a potential substitute for parallel lasers in WDM systems. Benefits include the stable spacing and broadband phase coherence of the comb lines, enabling improved spectral efficiency of transmission systems, as well as potential

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16

Bielawski, Radosław, and Aleksandra Radomska. "NASA Space Laser Communications System." Safety & Defense 6, no. 2 (November 2, 2020): 51–62. http://dx.doi.org/10.37105/sd.85.

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Bidirectional space communication is a fundamental prerequisite for maintaining contact with objects performing missions in space, whether manned and unmanned. Until recently, it relied solely on the propagation of electromagnetic waves (the radio) using frequency bands dedicated for objects outside the Earth's atmosphere. However, modern space technologies are subject to ongoing development as they are being fitted with advanced communication systems. Given the constant enhancement of our technological capabilities, the traditional radio-based communication shows a glaring inadequacy and cont

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17

Kim, Geuk-Nam, Sang-Young Park, Sehyun Seong, Jae-Young Choi, Sang-Kook Han, Young-Eon Kim, Suyong Choi, et al. "Design of Novel Laser Crosslink Systems Using Nanosatellites in Formation Flying: The VISION." Aerospace 9, no. 8 (August 3, 2022): 423. http://dx.doi.org/10.3390/aerospace9080423.

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Abstract (sommario):

With growth in data volume from space missions, interest in laser communications has increased, owing to their importance for high-speed data transfer in the commercial and defense fields, spaceborne remote sensing, and surveillance. Here, we propose a novel system for space-to-space laser communication, a very high-speed inter-satellite link system using an infrared optical terminal and nanosatellite (VISION), which is aimed at establishing and validating miniaturized laser crosslink systems and several space technologies using two 6U nanosatellites in formation flying. An optical link budget

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18

Dmytryszyn, Mark, Matthew Crook, and Timothy Sands. "Lasers for Satellite Uplinks and Downlinks." Sci 2, no. 2 (June 12, 2020): 44. http://dx.doi.org/10.3390/sci2020044.

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Abstract (sommario):

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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19

Dmytryszyn, Mark, Matthew Crook, and Timothy Sands. "Lasers for Satellite Uplinks and Downlinks." Sci 2, no. 3 (September 9, 2020): 71. http://dx.doi.org/10.3390/sci2030071.

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Abstract (sommario):

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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20

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

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Abstract (sommario):

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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21

Dammacco, Giada, Dirk Wenzel, and Christian Hennigs. "Prosys-Laser: Smart Laser Protective Textile Systems." Advances in Science and Technology 80 (September 2012): 156–62. http://dx.doi.org/10.4028/www.scientific.net/ast.80.156.

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“Passive” and “active” laser-protective clothing and curtains are hardly available on the market today for the use with hand-held laser processing devices (HLD) and automated laser machines. However, the fact that serious laser injuries of the skin happen shows that skin protection against laser radiation is necessary. Thus, key developments described in this paper are on the one hand highly innovative functional multi-layer technical textiles, providing a high level of passive laser resistance. On the other hand, active systems, containing functional multi-layer smart fabrics which detect las

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22

Zhou, Li. "Optical System in Laser Inter-Satellites Communication." Advanced Materials Research 945-949 (June 2014): 2213–16. http://dx.doi.org/10.4028/www.scientific.net/amr.945-949.2213.

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We know that Inter-satellites communica-tion is a very important to us.However, real global coverage can only be achieved by satellite systems. Satellites communication is the most important mean of the communication network. The traditional satellites communication and inter-satellites links are built by microwave. Recent years, laser links for inter-satellites communication are becoming more and more important.

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23

Abramova, Evgenia S., Vyacheslav F. Myshkin, Valery A. Khan, Sergey F. Balandin, Roman S. Eremeev, Maria S. Pavlova, and Dmitry M. Horohorin. "ON THE USE OF BISTATIC UNDERWATER OPTICAL COMMUNICATION SYSTEMS." T-Comm 14, no. 8 (2020): 4–12. http://dx.doi.org/10.36724/2072-8735-2020-14-8-4-12.

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Atmospheric and underwater optical communication lines have much in common due to variable conditions for the transmission of laser radiation along the path of the communication line, both in time and in space. The passage of a laser beam through a cloudy medium is accompanied by a decrease in the radiation intensity and an increase in the intensity of the scattered flux, which forms illumination, the intensity of which decreases with distance from the laser beam. As a rule, at the scales of distances at which the radiation of the optical range decays by several orders of magnitude, water in n

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24

Shi-Jie, GAO, WU Jia-Bin, LIU Yong-Kai, MA Shuang, NIU Yan-Jun, and YANG Hui-sheng. "Development status and trend of micro-satellite laser communication systems." Chinese Optics 13, no. 6 (2020): 1–11. http://dx.doi.org/10.37188/co.2020-0033.

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25

Lu hongqiang, 陆红强, 赵卫 Zhaowei, 胡辉 Wangwei, 汪伟 Huhui, and 谢小平 Xie xiaoping. "The Effects of beam misalignment on space laser communication systems." High Power Laser and Particle Beams 23, no. 4 (2011): 895–900. http://dx.doi.org/10.3788/hplpb20112304.0895.

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26

Tascillo, Mark A. "Adaptive jitter rejection technique applicable to airborne laser communication systems." Optical Engineering 34, no. 5 (May 1, 1995): 1263. http://dx.doi.org/10.1117/12.201638.

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27

Hoang, Thang Manh, Sanjay K. Palit, Sayan Mukherjee, and Santo Banerjee. "Synchronization and secure communication in time delayed semiconductor laser systems." Optik 127, no. 22 (November 2016): 10930–47. http://dx.doi.org/10.1016/j.ijleo.2016.08.105.

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28

Tang, Ming Hui, Mi Li, Yan Li, Jia Chen Ding, and Guo Liang Xu. "Investigation of the Performance of OOK, 2DPSK, QDPSK in Downlink of Ground-to-Satellite Laser Communication Systems." Applied Mechanics and Materials 411-414 (September 2013): 749–52. http://dx.doi.org/10.4028/www.scientific.net/amm.411-414.749.

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Abstract (sommario):

With the development of satellite laser communication, modulation scheme has been the key technique for the modulation subsystem. The performance in terms of bite-error rate of OOK, 2DPSK, QDPSK used in the downlink of the ground-to-satellite laser communication systems are compared with the consideration of the combined effects of both intensity scintillation and detector noise. Simulation results are given and the advantages and disadvantages of the three modulation schemes are also studied. The design of the downlink of ground-to-satellite laser communication system can benefit from this wo

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29

Zhai, Xu Hua, and Hong Tao Zhang. "Compensation Experiment Analysis of Adaptive Optical System in Space Laser Communication." Advanced Materials Research 201-203 (February 2011): 491–94. http://dx.doi.org/10.4028/www.scientific.net/amr.201-203.491.

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Fast steering mirrors（FSM） and deformable reflective mirrors (DRM) of adaptive optical systems (AOS) can significantly deduce laser transmitting attenuations caused by atmosphere turbulence in space laser communication systems. In this paper, Strehl ratio (SR) as an important compensating evaluation parameter was used and the compensating errors were also analyzed. The compensating effects of optical wavefront for atmosphere disturbance were put forward when the refractive index structure constants and transverse wind speeds were uniform distributions.

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30

Peng, P. C., K. C. Shiu, Y. M. Chen, M. A. Bitew, W. Y. Lee, C. H. Lai, and Y. W. Peng. "Multiwavelength Laser Module Based on Distribute Feedback Laser Diode for Broadcast and Communication Systems." IEEE Photonics Journal 8, no. 4 (August 2016): 1–8. http://dx.doi.org/10.1109/jphot.2016.2591440.

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31

Karpathakis, Skevos F. E., Benjamin P. Dix-Matthews, Shane M. Walsh, Ayden S. McCann, David R. Gozzard, Alex M. Frost, Charles T. Gravestock, and Sascha W. Schediwy. "Ground-to-Drone Optical Pulse Position Modulation Demonstration as a Testbed for Lunar Communications." Drones 7, no. 2 (January 31, 2023): 99. http://dx.doi.org/10.3390/drones7020099.

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Free-space optical (FSO) communication promises to bring fibre-like speeds to data transmissions between ground, sky and space. This is becoming more important in light of the increasing volume of data collected by aircraft and spacecraft. The University of Western Australia (UWA) is commissioning optical ground stations to support FSO communications payloads. We propose retroreflected laser links to drones as a useful step towards further ground-to-sky and ground-to-space FSO communications demonstrations. In this paper, we describe the operation of a hardware testbed for a high photon effici

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32

Vilcane, K., S. Matsenko, M. Parfjonovs, R. Murnieks, M. Aleksejeva, and S. Spolitis. "Implementation of Multi-Wavelength Source for DWDM-PON Fiber Optical Transmission Systems." Latvian Journal of Physics and Technical Sciences 57, no. 4 (August 1, 2020): 24–33. http://dx.doi.org/10.2478/lpts-2020-0019.

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AbstractFour-wave mixing (FWM) is one of the well-known nonlinear optical effects (NOE), and it is considered as an adverse impact in fibre optical communication lines. This nonlinear optical effect as a productive one can be used in fibre optical communication systems for various optical processing functions, like wavelength conversion, high-speed time-division multiplexing (TDM), pulse compression, fibre optical parametric amplifiers (FOPA), etc. In most of the fibre optical communication systems, each data transmission channel requires one light source (e.g., laser) as a carrier, which can

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33

HSU, H., T. N. LI, E. Z. YANG, J. L. YU, J. LÜ, YUE XU, and YAN GAO. "EFFECT OF PHONONS IN STIMULATED BRILLOUIN SCATTERING ON OPTICAL FIBER COMMUNICATION." Journal of Nonlinear Optical Physics & Materials 14, no. 01 (March 2005): 1–8. http://dx.doi.org/10.1142/s0218863505002463.

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Stimulated Brillouin scattering (SBS) can be used for phase conjugation mirrors in many laser systems1,5 and it also often appears in long distance optical fiber communication systems because the threshold of SBS is normally inversely proportional to the interaction length.2 In this paper, the effect of phonon loss is investigated. Our study shows that phase conjugation systems do require lower phonon loss and higher nonlinearity as expected but higher phonon loss and lower nonlinearity are actually desirable for long distance optical fiber communications.

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34

Li, Xiang Yang, and Zong Feng Ma. "Hybrid Laser/Microwave Wireless Communication System for Fractionated Cluster Spacecraft." Applied Mechanics and Materials 651-653 (September 2014): 2036–39. http://dx.doi.org/10.4028/www.scientific.net/amm.651-653.2036.

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Compared with conventional a single, “monolithic” satellite, fractionated cluster spacecraft system has the advantages of enhancing the adaptability and survivability of space systems while also shortening development expense. A novel wireless communication system that combines both microwave and laser technology has been investigated and demonstrated. The experiment results show that the hybrid laser/microwave wireless communication can offer excellent information services and meet the cluster system requirement.

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35

ARAKI, Ken-ichi, and Yoji FURUHAMA. "Optical Beam Tracking/Pointing Stability in Free-Space Laser Communication Systems." Review of Laser Engineering 19, no. 6 (1991): 538–43. http://dx.doi.org/10.2184/lsj.19.6_538.

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Ribeiro, R. F. S., F. Da Rocha, and A. V. T. Cartaxo. "Influence of laser phase noise on dispersive optical fiber communication systems." IEEE Photonics Technology Letters 7, no. 12 (December 1995): 1510–12. http://dx.doi.org/10.1109/68.477298.

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Moura, C. G., O. Carvalho, V. H. Magalhães, R. S. F. Pereira, M. F. Cerqueira, L. M. V. Gonçalves, R. M. Nascimento, and F. S. Silva. "Laser printing of micro-electronic communication systems for smart implants applications." Optics & Laser Technology 128 (August 2020): 106211. http://dx.doi.org/10.1016/j.optlastec.2020.106211.

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38

Popoola, W. O., Z. Ghassemlooy, C. G. Lee, and A. C. Boucouvalas. "Scintillation effect on intensity modulated laser communication systems—a laboratory demonstration." Optics & Laser Technology 42, no. 4 (June 2010): 682–92. http://dx.doi.org/10.1016/j.optlastec.2009.11.011.

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39

Esser, Peter D., Ethan J. Halpern, and E. S. Amis. "Quality assurance of picture archiving communication systems with laser film digitizers." Journal of Digital Imaging 4, no. 4 (November 1991): 248–50. http://dx.doi.org/10.1007/bf03173907.

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40

Ishikawa, H., H. Soda, K. Wakao, K. Kihara, K. Kamite, Y. Kotaki, M. Matsuda, et al. "Distributed feedback laser emitting at 1.3 µm for gigabit communication systems." Journal of Lightwave Technology 5, no. 6 (1987): 848–55. http://dx.doi.org/10.1109/jlt.1987.1075570.

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41

Chen, Jiayu, Jinsheng Liu, Long Han, Mingru Ci, Dongbo Che, Lihong Guo, and Hongjun Yu. "Theory of AdaDelSPGD Algorithm in Fiber Laser-Phased Array Multiplex Communication Systems." Applied Sciences 12, no. 6 (March 16, 2022): 3009. http://dx.doi.org/10.3390/app12063009.

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Abstract (sommario):

Stochastic parallel gradient descent (SPGD) algorithm is one of the most promising methods for effective coherent beam combination. However, the algorithm also has some disadvantages, such as slow convergence speed and local extremum. This paper proposes an AdaDelSPGD algorithm, which combines an AdaDelta algorithm with a SPGD algorithm, and improves the traditional AdaDelta algorithm with adaptive gain coefficient. It is worth noting that the adaptive gain coefficient can be adjusted in real time to improve the convergence rate. The effectiveness of the proposed algorithm is verified by relev

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42

Guo, Bo, Xinyu Guo, Renlai Zhou, Zhongyao Ren, Qiumei Chen, Ruochen Xu, and Wenbin Luo. "Multi-Pulse Bound Soliton Fiber Laser Based on MoTe2 Saturable Absorber." Nanomaterials 13, no. 1 (December 30, 2022): 177. http://dx.doi.org/10.3390/nano13010177.

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Bound solitons have become a hot topic in the field of nonlinear optics due to their potential applications in optical communication, information processing and radar systems. However, the trapping of the cascaded bound soliton is still a major challenge up to now. Here, we propose and experimentally demonstrate a multi-pulse bound soliton fiber laser based on MoTe2 saturable absorber. In the experiment, MoTe2 nanosheets were synthesized by chemical vapor deposition and transferred to the fiber taper by optical deposition. Then, by inserting the MoTe2 saturable absorber into a ring cavity lase

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Sirleto, Luigi, and Maria Antonietta Ferrara. "Fiber Amplifiers and Fiber Lasers Based on Stimulated Raman Scattering: A Review." Micromachines 11, no. 3 (February 26, 2020): 247. http://dx.doi.org/10.3390/mi11030247.

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Nowadays, in fiber optic communications the growing demand in terms of transmission capacity has been fulfilling the entire spectral band of the erbium-doped fiber amplifiers (EDFAs). This dramatic increase in bandwidth rules out the use of EDFAs, leaving fiber Raman amplifiers (FRAs) as the key devices for future amplification requirements. On the other hand, in the field of high-power fiber lasers, a very attractive option is provided by fiber Raman lasers (FRLs), due to their high output power, high efficiency and broad gain bandwidth, covering almost the entire near-infrared region. This p

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44

Chen, Chen. "Special Issue on “Visible Light Communication (VLC)”." Photonics 9, no. 5 (April 21, 2022): 284. http://dx.doi.org/10.3390/photonics9050284.

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Abstract (sommario):

Due to its appealing advantages, including abundant and unregulated spectrum resources, no electromagnetic interference (EMI) radiation and high security, visible light communication (VLC) using light-emitting diodes (LEDs) or laser diodes (LDs) has been envisioned as one of the key enabling technologies for 6G and Internet of Things (IoT) systems [...]

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45

Zhang, Hong Tao, and Xu Hua Zhai. "Compensation Effects Analysis of Adaptive Optical System Based on Space Laser Communications." Advanced Materials Research 201-203 (February 2011): 495–98. http://dx.doi.org/10.4028/www.scientific.net/amr.201-203.495.

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The effects of atmosphere turbulence on optical beams transmitting in space laser communication system were analyzed by using sixty-one units adaptive optical system in the paper. Laser communication systems from low earth orbit planet to ground station were imitated by way of optical design software. In addition, the compensating results, experimental phenomena and data based on adaptive optics were also analyzed.

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46

Hammad, Mohab, Aleksandra Kaszubowska-Anandarajah, M. Pascual, Pascal Landais, Prajwal Lakshmijayasimha, Gaurav Jain, and Prince Anandarajah. "Characterization and Direct Modulation of a Multi-Section PIC Suited for Short Reach Optical Communication Systems." Photonics 7, no. 3 (July 31, 2020): 55. http://dx.doi.org/10.3390/photonics7030055.

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A multi-section active photonic integrated circuit (PIC) is characterized in detail to gauge its suitability as a transmitter for short reach applications. The PIC is 1.5 mm long and consists of two lasers integrated in a master-slave configuration, which enables optical injection locking (OIL) of the slave laser. The beneficial impact of the injection is characterized by static and dynamic measurements. The results show a reduction of the optical linewidth from 8 MHz to 2 MHz, a relative intensity noise (RIN) value as low as −154.3 dB/Hz and a 45% improvement of the slave laser modulation ban

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47

Jiang, Guozhou, and Liu Yang. "Multi-Level Phase Noise Model for CO-OFDM Spatial-Division Multiplexed Transmission." Photonics 10, no. 1 (December 23, 2022): 8. http://dx.doi.org/10.3390/photonics10010008.

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Spatial division multiplexed (SDM) transmission systems with coherence communication technology have become an important issue in meeting the demands for the capacity of fiber. However, research on the phase noise from lasers is mainly focused on single-channel systems or single-carrier SDM systems. In this paper, a phase noise model comprising common laser phase noise, in addition to the core phase drifts induced by the SDM, is introduced and analyzed for a coherence orthogonal frequency-division multiplexing (CO-OFDM) spatial-division multiplexed transmission (SDM) system. Based on the phase

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48

Ali, Mohanad H., Mahmood H. Enad, Jasim Mohmed Jasim, Rawaa A. Abdul-Nab, and Nadia Alani. "Study of impact of art performance level of blue laser technology applications and its control." Indonesian Journal of Electrical Engineering and Computer Science 17, no. 3 (March 1, 2020): 1383. http://dx.doi.org/10.11591/ijeecs.v17.i3.pp1383-1389.

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<p><span>In this work; we present an enhancement in blue laser diodes with new factors and applications for modern technology such as underwater telecommunications, bio-sensor and bio-medical systems etc. Years of advance meanwhile have much enhanced laser performance, and extremely improved their diversity, making lasers significant parts in scientific research, telecommunications, engineering, bio-medical imaging, materials working, and a swarm of other applications. This article viewing how laser technology has progressed to chance application requirements. The enhanced blue las

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49

Huynh, Tam N., Frank Smyth, Lim Nguyen, and Liam P. Barry. "Effects of phase noise of monolithic tunable laser on coherent communication systems." Optics Express 20, no. 26 (November 29, 2012): B244. http://dx.doi.org/10.1364/oe.20.00b244.

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50

Li, Mi, Yifeng Hong, Su Wang, Yuejiang Song, and Xun Sun. "Radiation-induced mismatch effect on performances of space chaos laser communication systems." Optics Letters 43, no. 20 (October 15, 2018): 5134. http://dx.doi.org/10.1364/ol.43.005134.

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