Title :
Influence of end reflectivity on the excess-noise factor in distributed feedback lasers
Author :
Tyszka-Zawadzka, Anna ; Szczepanski, Pawel ; Wolinski, Wieslaw
Author_Institution :
Inst. of Microelectron. & Optoelectron., Warsaw Univ. of Technol., Poland
fDate :
12/1/1993 12:00:00 AM
Abstract :
The influence of end reflectivity on the excess noise factor in distributed feedback lasers is analyzed. It is shown that the end reflectivity affects the excess-noise factor markedly in the weak and moderate coupling region. In particular, in this coupling region the noise level in the laser structure strongly depends on the end reflectivity phase. Moreover, in the weak and moderate coupling region, the excess-noise factor decreases with an increasing end reflectivity amplitude; in the strong coupling region the opposite behavior is observed
Keywords :
distributed feedback lasers; eigenvalues and eigenfunctions; laser modes; laser theory; reflectivity; semiconductor device noise; semiconductor lasers; distributed feedback lasers; end reflectivity; end reflectivity amplitude; end reflectivity phase; excess-noise factor; laser structure; moderate coupling region; noise level; weak coupling region; Distributed feedback devices; Laser feedback; Laser modes; Laser noise; Laser theory; Optical feedback; Optical resonators; Reflectivity; Semiconductor device noise; Spontaneous emission;
Journal_Title :
Quantum Electronics, IEEE Journal of
