Title :
A tunable GaInAsP-InP optical microring notch filter
Author :
Grover, R. ; Ibrahim, T.A. ; Kanakaraju, S. ; Lucas, L. ; Calhoun, L.C. ; Ho, P.-T.
Author_Institution :
Lab. for Phys. Sci., College Park, MD, USA
Abstract :
The authors demonstrate an ultracompact tunable GaInAsP-InP microring notch filter. The core of the device is a quantum-well superlattice and forms the intrinsic region in a p-n structure. The device has curved sections of radius 2.25 μm and straight sections of length 1 μm, making it the smallest microring filter ever reported. They obtain 0.8 nm (100 GHz) of tuning by reverse-biasing the diode structure over 8 V using the quadratic electrooptic effect.
Keywords :
III-V semiconductors; electro-optical filters; gallium arsenide; gallium compounds; indium compounds; integrated optics; micro-optics; notch filters; optical filters; optical resonators; optical tuning; p-n heterojunctions; semiconductor quantum wells; semiconductor superlattices; 1 mum; 2.25 mum; GaInAsP-InP; GaInAsP-InP optical microring notch filter; diode structure; microdisks; microresonators; microrings; p-n structure; quadratic electrooptic effect; quantum-well superlattice; reverse-biasing; tunable optical microring notch filter; Lithography; Optical filters; Optical refraction; Optical resonators; Optical superlattices; Optical surface waves; Optical variables control; Optical waveguides; Quantum well devices; Refractive index;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.823092
