Thermo-Optic Phase-Profile Shaping of Bragg Gratings in Planar Silica Channel Waveguides

Thermo-Optic Phase-Profile Shaping of Bragg Gratings in Planar Silica Channel Waveguides

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 t...

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Veröffentlicht in:IEEE photonics technology letters 2010-06, Vol.22 (12), p.902-904
Hauptverfasser: Pagel, Tino, Waterholter, Thomas, Renner, Hagen, Voigt, Jog, Brinkmeyer, Ernst
Format: Artikel
Sprache:eng
Schlagworte:
Arrayed waveguide gratings
Bragg gratings
Chirp
Chirped Bragg grating
dispersion compensation
Heating
Lighting
Optical fiber communication
Optical planar waveguides
Optical waveguides
phase shifters
planar waveguide
Planar waveguides
Silicon compounds
thermal tunability
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Beschreibung
Zusammenfassung: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.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2010.2047102