On-ground simulation of optical links for free-space laser communications

Wan, Lingyu; Liu, Liren; Sun, Jianfeng

doi:10.1016/j.ijleo.2008.07.002

Cited by 11 publications

(3 citation statements)

References 9 publications

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“…Having formed a new optical link, the OGS-2 station begins to function as a relay optical ground station and the user operations center simulator (User MOC). The use of electromagnetic links in this simulation (Wan et al, 2010) enables relay providers in the flight segment to determine the characteristics of the handover process. The tests could be modified to include a range of other conditions, e.g.…”

Section: Results From Experiments and Potential Lcrd Application Casementioning

confidence: 99%

NASA Space Laser Communications System

Bielawski

Radomska

2020

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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 contributes to the widening of a gap between this and the high technology of on-board devices installed on modern spacecraft. The technology that complies with the up-to-date requirements of space communication is optical space communication. It is expected to provide for high-speed data transfer and increase the bandwidth several times, while ensuring immunity to common cyber threats, including jamming, spoofing and meaconing. The deployment of laser-based optical communication will not only contribute to increasing the air and space operation safety levels, but also enable deep space exploration. To this end, NASA’s Laser Communications Relay Demonstration Project (LCRD) is currently undergoing development and testing. This chapter undertakes to characterise the emerging technology with respect to its operating principles, the future scope of applications and involvement in currently conducted experiments. The results from the analysis are presented in the form of scenarios outlining possible applications of laser communication.

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Section: Results From Experiments and Potential Lcrd Application Casementioning

confidence: 99%

NASA Space Laser Communications System

Bielawski

Radomska

2020

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“…Space optical communication, which has attracted considerable attention, is considered to be a promising way to provide real-time high-speed data communication globally [1][2][3][4]. Intersatellite optical links (IOLs) and space-to-ground links provide an attractive alternate to microwave systems for both commercial and military application, particularly for smaller size and weight of the terminal, less transmitter power, high immunity to interference as well as larger data rate [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Semiconductor Quantum Dot Photodetector for High Speed Space Optical Communication

Zhao

2014

AMM

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Space optical communication has become a promising application as a real-time and high-speed data rate in the near future. In this paper consider into account the cut off frequency of the photodetector in the space optical communication. We analyze an appropriate quantum dot infrared photodetector for high speed response. The analysis shows PN junction structure photodiode with the wide asdin the absorption window should be designed carefully to achieve both high sensitivity and high speed.

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“…Free space laser communication is a kind of technique which employs laser as the carrier to transmit signals between two terminals. With its potential commercial and military applications due to smaller size and weight of the terminal, less power consumption, larger data rate, denser satellite orbit population, and greater immunity to interference which compare to microwave communications, the research of this technique has become a hot spot [1][2][3][4][5][6]. Since intersatellite laser communication system works with the limitation of optical diffraction, communication distance and photoelectric detection, high quality laser beam, and high precision optical terminals are demanded.…”

Section: Introductionmentioning

confidence: 99%

Received Power Attenuation Analysis Based on Wavelet for Reflection-Style Optical Antenna Deformations in Free-Space Laser Communications

Xie

Tan

et al. 2011

International Journal of Antennas and Propagation

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Diversified deformations on reflection-style optical antennas caused by processing technique and complex outer-space environment in free-space laser communications are modeled by wavelet analysis. Influence due to the deformations on received power is studied by distortion attenuation factor based on the model. Theoretical and numerical analysis shows that distortion attenuation factor increases with shift factor of the model, decreases with dilation factor of the model, and decreases with irregular fluctuations with wavelet coefficient of the model. To the special case that the deformation can be well approximated to a constant, distortion attenuation factor varies periodically with the linear increase of the deformation coefficient. A reference for the requirement on the precision of optical antenna is proposed, and a method to reduce the effect of deformation is recommended. It is hoped that the study can be used in the design of free space laser communication systems.

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On-ground simulation of optical links for free-space laser communications

Cited by 11 publications

References 9 publications

NASA Space Laser Communications System

NASA Space Laser Communications System

Semiconductor Quantum Dot Photodetector for High Speed Space Optical Communication

Received Power Attenuation Analysis Based on Wavelet for Reflection-Style Optical Antenna Deformations in Free-Space Laser Communications

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