Title :
Absolute frequency identification and stabilisation of DFB lasers in 1.5 mu m region
Author :
Maeda, M.W. ; Barry, J.R. ; Kumazawa, T. ; Wagner, R.E.
Author_Institution :
Bellcore, Red Bank, NJ, USA
Abstract :
Using a scanning Fabry-Perot interferometer and a reference laser locked to an ammonia absorption line, the wavelengths of four 1.5 mu m DFB lasers were simultaneously identified with an absolute accuracy of +or-0.002 nm (+or-250 MHz). The lasers were then stabilised to arbitrarily specified wavelengths with the same accuracy.
Keywords :
distributed feedback lasers; laser frequency stability; optical communication equipment; semiconductor junction lasers; 1.5 micron; DFB lasers; NH 3 absorption line; absolute frequency identification; frequency stabilisation; reference laser; scanning Fabry-Perot interferometer;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890007
