Title :
Monolithically Integrated Tunable Laser Using Double-Ring Resonators With a Tilted Multimode Interference Coupler
Author :
Yoon, Ki-Hong ; Oh, Kwang Ryong ; Kim, Ki Soo ; Kim, Jong Hoi ; Kim, Dong Churl
Author_Institution :
Photonic/Wireless Convergence Components Dept., Electron. & Telecommun. Res. Inst., Daejeon
fDate :
7/1/2009 12:00:00 AM
Abstract :
A monolithically integrated tunable semiconductor ring laser consisting of a semiconductor optical amplifier and two ring resonators with tilted multimode interference (MMI) couplers is presented. The characteristic response of the ring resonators is discussed for various cross coupling strengths by adjusting the angle of the tilted MMI couplers. The ring laser has a wavelength tuning range of 11 nm and a sidemode suppression ratio larger than 40 dB for a cross coupling strength of 0.09. The peak power of the laser is larger than -3 dBm for chip-to-fiber coupling.
Keywords :
integrated optics; laser beams; laser cavity resonators; laser tuning; optical fibre couplers; ring lasers; semiconductor optical amplifiers; MMI couplers; chip-to-fiber coupling; double-ring resonators; monolithically integrated tunable semiconductor ring laser; multimode interference coupler; semiconductor optical amplifier; sidemode suppression ratio; Interference; Laser tuning; Optical coupling; Optical resonators; Optical ring resonators; Optical tuning; Ring lasers; Semiconductor lasers; Semiconductor optical amplifiers; Tunable circuits and devices; InP; Integrated tunable laser; multimode interference (MMI) coupler; planar buried heterostructure semiconductor optical amplifier (PBH-SOA); ring resonator;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2009.2019831
