Title :
Measured feedback-induced intensity noise for 1.3 mu m DFB laser diodes
Author :
Schunk, N. ; Petermann, K.
Author_Institution :
Inst. fur Hochfrequenztech., Tech Univ. Berlin, West Germany
Abstract :
An experimental set-up is described, allowing for reliable relative intensity noise (RIM) measurements for a wide feedback range. It could be verified experimentally for DFB-lasers that the transition to the coherence collapse regime occurs at significantly larger feedback levels, if the laser is operated at larger optical powers. Furthermore, it has been noted that a large coupling strength kappa L in DFB lasers is beneficial for improved stability against optical feedback.
Keywords :
distributed feedback lasers; optical noise measurement; semiconductor junction lasers; 1.3 micron; DFB laser diodes; coherence collapse regime; coupling strength; experimental set-up; feedback levels; feedback-induced intensity noise; optical feedback; optical powers; relative intensity noise; stability; transition; wide feedback range;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890045
