Title :
A high-Q wavelength filter based on buried heterostructure ring resonators integrated with a semiconductor optical amplifier
Author :
Choi, S.J. ; Zhen Peng ; Qi Yang ; Eui Hyun Hwang ; Dapkus, P.D.
Author_Institution :
Dept. of Electr. Eng.-Electrophys., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
We demonstrate a very high quality (Q) factor wavelength filter based on a buried heterostructure (BH) microresonator platform technology. A 200-μm-radius BH ring resonator is integrated with a semiconductor optical amplifier (SOA) using offset quantum wells for loss-cancellation. The resonator is operated near critical coupling at I/sub SOA/=29 mA, which yields a coupling-limited Q of 2.0×105 with an extinction of -26 dB at the resonant wavelength.
Keywords :
Q-factor; integrated optics; micro-optics; microcavities; optical filters; optical resonators; semiconductor optical amplifiers; semiconductor quantum wells; 200 mum; 29 mA; buried heterostructure resonators; high-Q filter; integrated resonators; loss-cancellation; microresonator platform technology; near critical coupling; offset quantum wells; quality factor; resonant wavelength; ring resonators; semiconductor optical amplifier; wavelength filter; Laser mode locking; Microcavities; Optical filters; Optical losses; Optical resonators; Optical ring resonators; Optical waveguides; Resonance; Resonator filters; Semiconductor optical amplifiers; Buried heterostructure (BH); critical coupling; integrated semiconductor optical amplifier (SOA); microresonator; offset quantum wells (QWs); quality factor; wavelength filter;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.856372
