Title :
Demodulation of multi-gigahertz frequency-modulated optical signals in an injection-locked distributed feedback laser oscillator
Author :
Nakajima, Hiromasa
Author_Institution :
CNET, Lab. de Bagneux, France
fDate :
7/19/1990 12:00:00 AM
Abstract :
A new type of wavelength selective optical receiver that allows the demodulation of multi-gigaHertz frequency modulated (FM) optical signals is demonstrated by detecting FM light-induced changes in the forward voltage of an optically injection-locked distributed feedback semiconductor laser operating at far above the lasing threshold. A bandwidth as wide as 2 GHz is reported together with an FM demodulation efficiency of 52 mu V/GHz.
Keywords :
distributed feedback lasers; frequency modulation; optical communication equipment; optical modulation; photodetectors; semiconductor junction lasers; 2 GHz; FM light-induced changes; demodulation; forward voltage; injection-locked distributed feedback laser oscillator; lasing threshold; multi-gigahertz frequency-modulated optical signals; semiconductor laser; wavelength selective optical receiver;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19900730
