Title :
Multiwavelength locker integrated wide-band wavelength-selectable light source module
Author :
Yokoyama, Yoshitaka ; Hatakeyama, Hiroshi ; Kudo, Koji ; Yamaguchi, Masayuki
Author_Institution :
Networking Res. Labs., NEC Corp., Kawasaki, Japan
Abstract :
A wide-band wavelength-selectable light source module having an integrated multiwavelength locker has been developed. An eight-distributed-feedback (DFB) arrayed monolithic light source was designed to have 40-nm tunable range in the L-band by covering 5 nm per DFB laser diode. A uniquely designed etalon-based wavelength locker achieved very stable operation and uniform locking performance for all channels. Wavelength variation in the short term at room temperature was much less than 1 pm and the locked wavelength stayed within +/-5 pm when the case temperature of the module was varied from -20/spl deg/C to 65/spl deg/C.
Keywords :
distributed feedback lasers; integrated optics; laser stability; laser tuning; optical communication equipment; semiconductor device packaging; semiconductor laser arrays; semiconductor optical amplifiers; wavelength division multiplexing; -20 to 65 C; 22-pin butterfly package; DWDM systems; L-band; eight-distributed-feedback arrayed monolithic light source; etalon-based wavelength locker; integrated multiwavelength locker; module case temperature; multimode interference optical coupler; multiwavelength locker integrated wide-band wavelength-selectable light source module; room temperature; semiconductor optical amplifier; short term wavelength variation; stable operation; tunable laser; uniform locking performance; wide-band wavelength-selectable light source module; Costs; Light sources; National electric code; Optical arrays; Optical fiber networks; Optical transmitters; Optical waveguides; Temperature; Wavelength division multiplexing; Wideband;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2002.806862
