Title :
Silica-based finesse-variable ring resonator
Author :
Kominato, Toshimi ; Hibino, Yoshinori ; Onose, Katsuhide
Author_Institution :
NTT Opto-Electron Lab., Ibaraki, Japan
fDate :
5/1/1993 12:00:00 AM
Abstract :
A finesse-variable ring resonator with a free spectral range of 2.5 GHz is demonstrated using silica-based optical waveguides. The finesse is controlled with a coupling-ratio-variable coupler, which is composed of a symmetrical Mach-Zehnder interferometer and thermooptic phase shifters. The finesse of the resonator is changed continuously from 6 to 27.<>
Keywords :
integrated optics; light interferometers; optical couplers; optical resonators; optical waveguides; thermo-optical effects; 2.5 GHz; coupling-ratio-variable coupler; finesse-variable ring resonator; free spectral range; silica-based optical waveguides; symmetrical Mach-Zehnder interferometer; thermooptic phase shifters; Circuits; Directional couplers; Frequency; Optical fibers; Optical interferometry; Optical ring resonators; Optical variables control; Optical waveguides; Optimized production technology; Phase shifters;
Journal_Title :
Photonics Technology Letters, IEEE
