Title :
Optical frequency sweeper using an optical ring circuit with a tunable injection-locking filter
Author :
Ishikawa, M. ; Yasaka, H. ; Kano, F. ; Yoshikuni, Y.
Author_Institution :
NTT Photonics Lab., Atsugi, Japan
fDate :
Aug. 30 1999-Sept. 3 1999
Abstract :
We have developed an optical-frequency sweeper with a bandpass filter using injection locking in a DBR laser to overcome ASE noise problems. We achieved absolute optical-frequency synthesis by using an optical ring circuit with our filter. The SM of the output light was estimated to be over 30 dB, even after 1000 circulations, which corresponds to a total sweep frequency of 120 GHz.
Keywords :
acousto-optical filters; distributed Bragg reflector lasers; optical communication equipment; optical tuning; semiconductor lasers; wavelength division multiplexing; 120 GHz; ASE noise problems; DBR laser; absolute optical-frequency synthesis; bandpass filter; injection locking; optical frequency sweeper; optical ring circuit; output light; total sweep frequency; tunable injection-locking filter; Band pass filters; Circuit noise; Circuit synthesis; Distributed Bragg reflectors; Frequency estimation; Injection-locked oscillators; Laser noise; Optical filters; Optical noise; Ring lasers;
Conference_Titel :
Lasers and Electro-Optics, 1999. CLEO/Pacific Rim '99. The Pacific Rim Conference on
Conference_Location :
Seoul, South Korea
Print_ISBN :
0-7803-5661-6
DOI :
10.1109/CLEOPR.1999.814782
