Title :
Rapid, Precise, and Stable Control of Optical Frequency for SG-DBR LD Using Quartz Etalon
Author :
Ohshima, Shigeru ; Ide, Kazuhiko ; Ibe, Hiroyuki
Author_Institution :
Toshiba Corp., Kawasaki
fDate :
6/1/2007 12:00:00 AM
Abstract :
This paper presents rapid, precise, and stable control of optical frequency for sampled-grating distributed Bragg reflector (SG-DBR) laser diode (LD) using a Z-cut quartz etalon supported at the middle point. The optical frequency of SG-DBR LD was controlled by the mode-hop-free three-electrode control method. As a result, stable mode operation and wide continuous tuning range without mode hopping have been realized. A 0.2-ms optical frequency tuning speed with a 4.35-THz tuning range and a 130-MHz control error of the optical frequency was demonstrated. A 1.1-MHz Allan deviation was reached at an integration time of 12 times 103 s.
Keywords :
diffraction gratings; distributed Bragg reflector lasers; laser frequency stability; laser modes; laser tuning; light interferometry; optical communication equipment; quartz; semiconductor lasers; wavelength division multiplexing; Allan deviation; continuous tuning range; control error; dense wavelength division multiplexing; frequency 4.35 THz; mode-hop-free control; optical frequency; optical frequency tuning speed; quartz etalon; sampled-grating distributed Bragg reflector laser diode; stable control; stable mode operation; three-electrode control; time 0.2 ms; Distributed Bragg reflectors; Frequency locked loops; Laser stability; Laser tuning; Light sources; Optical control; Optical feedback; Optical resonators; Optical tuning; Wavelength division multiplexing; Distributed Bragg reflector lasers; Fabry–Pérot resonators; frequency locked loops; frequency stability; laser stability; laser tuning; quartz; wavelength division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2007.895557
