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Proceedings Paper

Bandwidth requirements for direct detection optical communication receivers with PPM signaling
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Paper Abstract

The performance of a direct detection optical communication receiver for pulse position modulation (PPM) signal formats which contains an avalanche photodiode photodetector is calculated as a function of the parameters which characterize a raised cosine filter used in the receiver. It is shown that the performance penalty of this receiver relative to that of an optimal receiver which contains an integrator and assumes a perfectly rectangular PPM pulse shape is less than 1 dB at a receiver bit error rate of 10 exp -6. The advantage of the raised cosine filter is that the electrical bandwidth required is no more than one-half that of the integrator, that is, 1/tau as opposed to 2/tau where tau is the PPM time slot duration.

Paper Details

Date Published: 1 June 1991
PDF: 14 pages
Proc. SPIE 1417, Free-Space Laser Communication Technologies III, (1 June 1991); doi: 10.1117/12.43744
Show Author Affiliations
Frederic M. Davidson, Johns Hopkins Univ. (United States)
Xiaoli Sun, Johns Hopkins Univ. (United States)
Michael Anthony Krainak, NASA/Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 1417:
Free-Space Laser Communication Technologies III
David L. Begley; Bernard D. Seery, Editor(s)

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