Title :
A theoretical and experimental comparison of directly and externally modulated fiber-optic links
Author :
Cox, C.H., III ; Johnson, L.M. ; Betts, G.E.
Author_Institution :
MIT Lincoln Lab., Lexington, MA, USA
Abstract :
Analytic models of directly and externally modulated fiber-optic links were derived and experimentally confirmed. The models were used to optimize the operating parameters of fiber-optic links. Experimental measurements on these optimized links indicated net incremental link power gains of +3 dB for direct modulation and +11 dB for external modulation. The implications of these optimizations for other measures of link performance, such as bandwidth and noise figure, are presented.<>
Keywords :
modulation; optical communication; optical fibres; optical links; random noise; analytic models; bandwidth; direct modulation; external modulation; fiber-optic links; link performance; noise figure; operating parameters; optimizations; semiconductor lasers; transfer function; Bandwidth; Laser modes; Laser noise; Optical fiber losses; Optical fibers; Optical modulation; Power lasers; Radio frequency; Semiconductor lasers; Voltage;
Conference_Titel :
Microwave Symposium Digest, 1989., IEEE MTT-S International
Conference_Location :
Long Beach, CA, USA
DOI :
10.1109/MWSYM.1989.38818
