Title :
Optical receiver sensitivity improvement by a semiconductor laser preamplifier
Author :
Yamamoto, Yoshihisa ; Tsuchiya, Haruhiko
Author_Institution :
NTT, Musashino Electrical Communication Laboratory, Musashino, Japan
Abstract :
Application of a semiconductor laser as a preamplifier in a p.c.m. i.m. fibre-optic transmission system was studied theoretically and experimentally. Experimental results on equalised baseband noise power and error rate performance are in good agreement with new formulation taking spontaneous emission into account. The semiconductor laser preamplifier is found to substantially enhance optical receiver sensitivity.
Keywords :
III-V semiconductors; aluminium compounds; error statistics; optical communication equipment; semiconductor junction lasers; AlGaAs DH lasers; enhance optical receiver sensitivity; equalised baseband noise power; error rate performance; receiver sensitivity improvement; semiconductor laser preamplifier; semiconductor lasers; spontaneous emission;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19800167
