Title :
Sensitivity of multiple-phase-shift distributed feedback semiconductor lasers to spatial hole burning
Author :
McCarthy, Nicholas
Abstract :
The influence of spatial hole burning on the behaviour of multiple-phase-shift DFB lasers has been analysed. It is found that for values of the phase-shift parameter lower than approximately 0.4, the extent of the singlemode regime is seriously reduced owing to a rapid increase of the mode nonuniformity along the cavity length.
Keywords :
distributed feedback lasers; laser modes; optical hole burning; semiconductor junction lasers; spectral line breadth; DFB lasers; flatness coefficient; linewidth power product; mode nonuniformity; multiple-phase-shift distributed feedback semiconductor lasers; singlemode regime; spatial hole burning;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19911231
