Title :
Method for measuring gain component of complex coupled gratings at any power
Author :
Salvatore, R.A. ; Sahara, R.T.
Author_Institution :
Corning Lasertron, Bedford, MA, USA
fDate :
1/3/2002 12:00:00 AM
Abstract :
Using the slope of the reflection spectrum of a laser´s stopband, the gain component can be directly read off an optical spectrum analyser. Gratings are tailored for high immunity to feedback through use of both strong index coupling and gain coupling. This method has been used to optimise both isolator-free distributed feedback lasers and electroabsorption modulator lasers
Keywords :
diffraction gratings; distributed feedback lasers; electro-optical modulation; electroabsorption; laser theory; light reflection; semiconductor lasers; spectral analysers; complex coupled gratings; electroabsorption modulator lasers; gain component measuring method; high feedback immunity; isolator-free distributed feedback lasers; laser stopband; optical spectrum analyser; power; reflection spectrum; strong gain coupling; strong index coupling;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020036
