Title :
Thermo-Optic Phase-Profile Shaping of Bragg Gratings in Planar Silica Channel Waveguides
Author :
Pagel, Tino ; Waterholter, Thomas ; Renner, Hagen ; Voigt, Jög ; Brinkmeyer, Ernst
Author_Institution :
Dept. of Opt. Commun. Technol., Hamburg Univ. of Technol., Hamburg, Germany
fDate :
6/15/2010 12:00:00 AM
Abstract :
Bragg gratings in planar channel waveguides equipped with arrays of heating elements on top of them are presented. The latter allow for applying user-defined temperature distributions along the gratings and thereby quasi-arbitrary changes of the phase of the coupling coefficient of the grating. In this way, tunable second- and higher-order dispersion compensators can be realized as well as tunable single- or multichannel transmission filters.
Keywords :
Bragg gratings; optical arrays; optical dispersion; optical filters; optical materials; optical planar waveguides; optical tuning; silicon compounds; thermo-optical effects; Bragg gratings; SiO2; coupling coefficient; heating elements; planar silica channel waveguides; thermo-optic phase-profile shaping; tunable higher-order dispersion compensators; tunable multichannel transmission filters; tunable second-order dispersion compensators; tunable single-channel transmission filters; user-defined temperature distributions; Chirped Bragg grating; dispersion compensation; phase shifters; planar waveguide; thermal tunability;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2047102
