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Proceedings Paper

Trade-off between IM-DD and coherent system in high-data-rate optical interorbit links
Author(s): Shiro Yamakawa; Tomohiro Araki; Yasumasa Hisada
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Paper Abstract

Trade-off between Intensity Modulation Direct Detection (IM- DD) and coherent system oriented to the inter-orbit lightwave communication link is performed. Improvement in sensitivity of IM-DD system adopting high power optical fiber booster/pre- amplifiers is discussed preciously. In this paper, IM-DD system with booster/pre-amplifier and five kinds of coherent system (ASK-heterodyne, FSK-heterodyne, PSK-heterodyne, DPSK- heterodyne, and PSK-homodyne) are compared for high-data rate communication. Numerical analysis shows the superior characteristics of coherent communication system in low BER transmission under severe ASE noise.

Paper Details

Date Published: 26 April 1999
PDF: 10 pages
Proc. SPIE 3615, Free-Space Laser Communication Technologies XI, (26 April 1999); doi: 10.1117/12.346205
Show Author Affiliations
Shiro Yamakawa, National Space Development Agency (Japan)
Tomohiro Araki, National Space Development Agency (Japan)
Yasumasa Hisada, National Space Development Agency (Japan)


Published in SPIE Proceedings Vol. 3615:
Free-Space Laser Communication Technologies XI
G. Stephen Mecherle, Editor(s)

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