Title :
Power Penalty From Amplified Spontaneous Emission in Spatial Diversity Links for Fade Mitigation
Author :
Ulmer, Todd G. ; Henion, Scott R. ; Walther, Frederick G.
Author_Institution :
MIT Lincoln Lab., Lexington, MA
Abstract :
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.
Keywords :
diversity reception; fading channels; optical links; optical receivers; Gaussian noise approximation; amplified spontaneous emission; atmospheric fading; bit rate 10.7 Gbit/s; chi square statistics; communications link; fade mitigation; multiwavelength spatial diversity transmitter; nonreturn-to-zero on-off-keyed system; optically preamplified receiver; power penalty; spatial diversity links; Diversity methods; fading channels; optical amplifiers; optical receivers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2008.2009318
