Title :
Frequency stability in high speed frequency switching of digitally tunable laser using ladder filter
Author :
Matsuo, S. ; Jeong, S.-H. ; Segawa, T. ; Okamoto, H. ; Kawaguchi, Y. ; Kondo, Y. ; Suzuki, H. ; Yoshikuni, Y.
Author_Institution :
NTT Photonics Labs., NTT Corp., Tokyo
Abstract :
A monolithically integrated digitally tunable ring laser has been developed that employs a ladder filter and a ring resonator. The ladder filter selects one channel from the periodic channels of the ring resonator and the stable device performance is achieved by adopting a chirped ladder filter with one dominant passband. The device is capable of 34-channel (100-GHz spacing) digitally tunable laser operation and the sidemode suppression ratio is more than 40 dB. The switching time for any wavelength is less than 10 nsec and the frequency drift caused by the thermal transient is less than 500 MHz
Keywords :
band-pass filters; high-speed optical techniques; integrated optics; integrated optoelectronics; ladder filters; laser cavity resonators; laser tuning; monolithic integrated circuits; ring lasers; 100 GHz; 3400 GHz; chirped ladder filter; digitally tunable laser; frequency drift; frequency stability; high speed frequency switching; ladder filter; monolithic integration; passband filter; periodic channels; ring laser; ring resonator; sidemode suppression ratio; stable device performance; thermal transient; Chirp; Digital filters; Frequency; Laser stability; Laser tuning; Optical ring resonators; Optical waveguides; Resonator filters; Ring lasers; Tunable circuits and devices;
Conference_Titel :
Optical Fiber Communication Conference, 2006 and the 2006 National Fiber Optic Engineers Conference. OFC 2006
Conference_Location :
Anaheim, CA
Print_ISBN :
1-55752-803-9
DOI :
10.1109/OFC.2006.215587
