Title :
Reduction of harmonic distortion and noise in a semiconductor optical amplifier using bias current feedback
Author :
Constable, J.A. ; White, Ian H. ; Cunningham, David G.
Author_Institution :
Sch. of Phys., Bath Univ., UK
Abstract :
The application of bias current feedback to a semiconductor optical amplifier is shown to improve considerably its noise and distortion performance in analogue applications. Improvements in harmonic distortion of up to 12.75dB, and in noise levels of up to 7.5dB, have been achieved.
Keywords :
feedback; interference suppression; optical modulation; semiconductor device noise; semiconductor lasers; analogue applications; bias current feedback; harmonic distortion reduction; input modulation index; noise reduction; semiconductor optical amplifier;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19931364
