Title :
Frequency stabilisation of a modulated semiconductor laser
Author :
Tsuchida, H. ; Mitsuhashi, Y.
Author_Institution :
Electrotechnical Laboratory, Optoelectronics Section, Tsukuba, Japan
Abstract :
A method is described for stabilising the centre frequency of a directly modulated semiconductor laser. This method utilises the second derivative signal of the transmitted spectrum through a Fabry-Perot interferometer. The centre frequency fluctuation of a modulated AlGaAs laser with a maximum frequency deviation of 12 GHz is reduced to less than 15 MHz.
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; light interferometers; optical modulation; semiconductor junction lasers; AlGaAs; Fabry-Perot interferometer; frequency stabilisation; modulated semiconductor laser; second derivative signal; semiconductor; transmitted spectrum;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870799
