Title :
Novel measurement technique of alpha factor in DFB semiconductor lasers by injection locking
Author :
Hui, R. ; Mecozzi, Antonio ; D´Ottavi, A. ; Spano, P.
Author_Institution :
Fondazione Ugo Bordoni, Roma, Italy
fDate :
7/5/1990 12:00:00 AM
Abstract :
A simple and accurate method to measure the linewidth enhancement factor alpha in DFB semiconductor lasers is proposed. This method, based on the principle of external optical injection locking, does not require the knowledge of the absolute value of optical injection level.
Keywords :
distributed feedback lasers; optical variables measurement; semiconductor junction lasers; DFB semiconductor lasers; accurate method; external optical injection locking; injection locking; linewidth enhancement factor measurement;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19900647
