Comparison of coherent detection and optically preamplified receivers

G. Stephen Mecherle

doi:10.1117/12.308699

27 May 1998 Comparison of coherent detection and optically preamplified receivers

G. Stephen Mecherle

Proceedings Volume 3266, Free-Space Laser Communication Technologies X; (1998) https://doi.org/10.1117/12.308699
Event: Optoelectronics and High-Power Lasers and Applications, 1998, San Jose, CA, United States

Abstract

Ideal detection techniques for laser communication are briefly reviewed. Laser communication systems using homodyne Manchester BPSK (MBPSK) and optically preamplified (OP) DPSK are compared on the basis of receiver sensitivity, temporal, spatial, and hardware requirements. It is found that a reduction of optical parts count at the receiver and a reduction in prime power also accompany the 3 dB benefit of homodyne. This occurs, however, at the expense of a more complex, although likely off-the-shelf, local oscillator laser and a doubling of the required signal bandwidth.

Citation Download Citation

G. Stephen Mecherle "Comparison of coherent detection and optically preamplified receivers", Proc. SPIE 3266, Free-Space Laser Communication Technologies X, (27 May 1998); https://doi.org/10.1117/12.308699

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