Title :
Multi-gigabit coherent communications using low-rate FEC to approach the Shannon capacity limit
Author :
Geisler, David J. ; Chandar, Venkat ; Yarnall, Timothy M. ; Stevens, Mark L. ; Hamilton, Scott A.
Author_Institution :
Lincoln Lab., Massachusetts Inst. of Technol., Lexington, MA, USA
Abstract :
Combining a rate-¼ forward error-correcting code, a coherent receiver, and an optical phase-locked loop yields near error-free performance with 2-dB photon-per-bit sensitivity, which is <;3-dB from the Shannon limit for a rate-¼, pre-amplified, coherent receiver.
Keywords :
forward error correction; optical phase locked loops; optical receivers; Shannon capacity limit; coherent receiver; low-rate FEC; multigigabit coherent communications; near error-free performance; optical phase-locked loop; photon-per-bit sensitivity; rate-1/4 forward error-correcting code; Adaptive optics; Forward error correction; Optical receivers; Parity check codes; Sensitivity; Signal to noise ratio;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
