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Experimental results on suboptimal filtering for optical digital pulse-position modulation

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2 Author(s)
Massarella, A.J. ; Sch. of Eng., Huddersfield Polytech., UK ; Sibley, M.J.N.

Original practical and theoretical results ( lambda =1.523 mu m) are presented for both optimal and suboptimal detection of digital PPM. When operating with 16 slots of 20 ns duration, the sensitivity was measured to be -46.6 dBm for optimal detection, and -45.9 dBm for suboptimal detection. It is concluded that suboptimal filtering significantly reduces receiver complexity, and results in a degradation in sensitivity of only 0.7 dB.

Published in:

Electronics Letters  (Volume:27 ,  Issue: 21 )