Optimum intersatellite link design in the presence of random pointing jitter for free-space laser communication systems

Morio Toyoshima; Takashi Jono; Keizo Nakagawa; Akio Yamamoto

doi:10.1117/12.464097

26 April 2002 Optimum intersatellite link design in the presence of random pointing jitter for free-space laser communication systems

Morio Toyoshima, Takashi Jono, Keizo Nakagawa, Akio Yamamoto

Author Affiliations +

Proceedings Volume 4635, Free-Space Laser Communication Technologies XIV; (2002) https://doi.org/10.1117/12.464097
Event: High-Power Lasers and Applications, 2002, San Jose, California, United States

Abstract

The average bit error rate (BER) of optical communication systems is considered in the presence of random angular pointing jitter. The received power and the BER in the absence of jitter are reviewed and then the average BER is obtained in the presence of circularly symmetric, normally distributed jitter by using the probability density function of the optical signal. By minimizing the power penalty for average BER, the optimum ratio of the divergence angle of the laser beam to the random angular jitter at the desired BER is obtained. The derived approximation is used to determine the beam divergence angle easily against the random pointing jitter. As an example, the optimum link budget for both optical tracking and communication channels is designed in the presence of fluctuated optical signal due to random pointing jitter.

Citation Download Citation

Morio Toyoshima, Takashi Jono, Keizo Nakagawa, and Akio Yamamoto "Optimum intersatellite link design in the presence of random pointing jitter for free-space laser communication systems", Proc. SPIE 4635, Free-Space Laser Communication Technologies XIV, (26 April 2002); https://doi.org/10.1117/12.464097

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