Title :
Frequency stabilized laser diode locked to acetylene gas absorption lines using fiber-pigtail-type acoustic optical modulator
Author :
Sakai, Y. ; Yokohama, I. ; Kano, F. ; Sudo, S.
Author_Institution :
NTT Opto-electron. Lab., Kanagawa, Japan
Abstract :
The operation frequency of 1.5 mu m laser diodes can be stabilized to /sup 12/C/sub 2/H/sub 2/ and /sup 13/C/sub 2/H/sub 2/ gas absorption lines without dithering the frequency spectrum of the laser diodes. The scheme employs a fiber-pigtail-type acoustic optical modulator for the purpose of a small laser-frequency scanning. Frequency stability within 3 MHz peak-to-peak fluctuation is achieved without dithering the frequency of the laser diodes.<>
Keywords :
acousto-optical devices; fibre optics; infrared spectra of organic molecules and substances; laser accessories; laser frequency stability; optical modulation; organic compounds; semiconductor junction lasers; 1.5 micron; IR sources; acetylene gas absorption lines; fiber-pigtail-type acoustic optical modulator; laser diode frequency stabilisation; laser-frequency scanning; operation frequency; peak-to-peak fluctuation; Absorption; Acoustic beams; Diode lasers; Frequency; Laser beams; Laser stability; Optical attenuators; Optical fibers; Optical modulation; Photodiodes;
Journal_Title :
Photonics Technology Letters, IEEE
