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Power Penalty From Amplified Spontaneous Emission in Spatial Diversity Links for Fade Mitigation

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3 Author(s)
Ulmer, T.G. ; MIT Lincoln Lab., Lexington, MA ; Henion, S.R. ; Walther, F.G.

We investigate the power penalty caused by excess amplified spontaneous emission in an optically preamplified receiver for a communications link where a multiwavelength spatial diversity transmitter is used to mitigate atmospheric fading. We compare measured receiver sensitivity for a four-wavelength 10.7-Gb/s nonreturn-to-zero on-off-keyed system to theory using both the Gaussian noise approximation and chi square statistics.

Published in:

Photonics Technology Letters, IEEE  (Volume:21 ,  Issue: 3 )