Title :
Optimised bandwidth of optical filter in optical preamplifier
Author :
Kinoshita, Shosuke ; Okiyama, T. ; Kuwahara, Hideo
Author_Institution :
Fujitsu Labs., Kawasaki, Japan
fDate :
6/18/1992 12:00:00 AM
Abstract :
An optimisation scheme is proposed for the optical-filter bandwidth in an optical preamplifier for a given tolerance in the signal-wavelength and a given filter profile. The optimised bandwidth is 3.46 times the conceivable detuning for a Lorentzian-shaped filter profile. Preamplifiers with optimised bandwidth can operate with the lowest noise figure at maximum detuning.
Keywords :
fibre lasers; optical communication equipment; optical filters; optimisation; receivers; 2.4 Gbit/s; Lorentzian-shaped filter profile; amplified spontaneous emission; bit error rate; detuning; fibre amplifier; filter profile; noise figure; optical preamplifier; optical-filter bandwidth; optimisation scheme; receiver sensitivity; signal wavelength tolerance;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19920766
