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Proceedings Article

Trade-off between IM-DD and coherent system in high-data-rate optical interorbit links

[+] Author Affiliations
Shiro Yamakawa, Tomohiro Araki, Yasumasa Hisada

National Space Development Agency (Japan)

Proc. SPIE 3615, Free-Space Laser Communication Technologies XI, 80 (April 26, 1999); doi:10.1117/12.346205
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From Conference Volume 3615

  • Free-Space Laser Communication Technologies XI
  • G. Stephen Mecherle
  • San Jose, CA | January 23, 1999

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.

© (1999) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Shiro Yamakawa ; Tomohiro Araki and Yasumasa Hisada
"Trade-off between IM-DD and coherent system in high-data-rate optical interorbit links", Proc. SPIE 3615, Free-Space Laser Communication Technologies XI, 80 (April 26, 1999); doi:10.1117/12.346205; http://dx.doi.org/10.1117/12.346205


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