Title :
New automatic control of returned light into frequency stabilised semiconductor laser
Author :
Shinohara, S. ; Inoue, N. ; Yoshida, H. ; Sumi, M.
Author_Institution :
Shizuoka University, Faculty of Engineering, Hamamatsu, Japan
Abstract :
A novel method of automatic phase control for returned light from an external mirror into a frequency stabilised semiconductor laser is proposed and demonstrated. It is based on the negative feedback of phase error signal obtained by weak intensity modulation of returned light to the position of the external mirror.
Keywords :
laser frequency stability; optical modulation; phase control; semiconductor junction lasers; automatic phase control; external mirror; frequency stabilised semiconductor laser; negative feedback; phase error signal; returned light; weak intensity modulation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850144
