DocumentCode
1026874
Title
Coherent FM-SCM system using DFB lasers and a phase noise cancellation circuit
Author
Gross, Richard ; Olshansky, Robert ; Schmidt, Mark
Author_Institution
GTE Lab. Inc., Waltham, MA, USA
Volume
2
Issue
1
fYear
1990
Firstpage
66
Lastpage
68
Abstract
A multichannel coherent subcarrier multiplexing (SCM) system using standard distributed-feedback lasers is discussed. A simple phase noise canceling circuit yields excellent quality FM video transmission (SNR=56 dB), even though the 50-MHz IF linewidth exceeds the 30-MHz signal bandwidth.<>
Keywords
distributed feedback lasers; frequency modulation; interference suppression; multiplexing equipment; optical communication equipment; video signals; 30 MHz; DFB lasers; FM video transmission; IF linewidth; multichannel coherent subcarrier multiplexing system; phase noise cancellation circuit; signal bandwidth; Bandwidth; Circuits; Frequency modulation; Laser noise; Optical modulation; Optical noise; Optical receivers; Phase modulation; Phase noise; Signal to noise ratio;
fLanguage
English
Journal_Title
Photonics Technology Letters, IEEE
Publisher
ieee
ISSN
1041-1135
Type
jour
DOI
10.1109/68.47045
Filename
47045
Link To Document