Title :
Wavelength-Tunable Microring Resonator on Lithium Niobate
Author :
Wang, Tzyy-Jiann ; Chu, Chia-Hong
Author_Institution :
Nat. Taipei Univ. of Technol., Taipei
Abstract :
A wavelength-tunable microring resonator with integrated microheater on lithium niobate is presented. Ridge structure on lithium niobate is formed by a wet-etching technique for enhancing the lateral index contrast of the waveguide. The resonant wavelength of the microring resonator is tuned through thermooptic effect by injecting current into the integrated microheater. The tuning characteristics of through port and drop port are measured and the tuning rates in the microring resonator with a radius of 100 mum for transverse-magnetic and transverse-electric polarizations are 2.54 x 10-2 nm/mA and 3.40 x 10-3 nm/mA.
Keywords :
etching; integrated optics; lithium compounds; micro-optomechanical devices; microcavities; micromechanical resonators; optical tuning; optical waveguides; thermo-optical effects; LiNbO3; integrated microheater; lateral index contrast; resonant wavelength; ridge structure; thermooptic effect; transverse-electric polarizations; transverse-magnetic polarizations; tuning characteristics; waveguide; wavelength-tunable microring resonator; wet etching; Dry etching; Lithium niobate; Optical films; Optical filters; Optical resonators; Optical ring resonators; Optical tuning; Optical waveguides; Optical wavelength conversion; Wet etching; Integrated optics; lithium niobate; microring resonators; tunable filters;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.907567
