Title :
Improved signal to noise ratio in gain-levered laser
Author :
Castro, J.C.S. ; Khanifar, A. ; Todd, C.J.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. Coll. London, UK
fDate :
7/6/1995 12:00:00 AM
Abstract :
A theoretical expression describing the signal to noise ratio (SNR) improvement in a gain-levered laser is presented. The gain-lever effect yields an SNR improvement that is independent of the section length of the laser. However, the rate of spontaneous emission in the laser cavity induces a reduction in this improvement which is found to be dependent on the relative length or its sections
Keywords :
laser noise; laser theory; quantum well lasers; spontaneous emission; gain-levered laser; laser cavity; section length; signal to noise ratio; spontaneous emission;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950776
