Silicon Nitride Bragg Grating with Joule Thermal Tuning for External Cavity Lasers

The paper presents a fabrication platform based on silicon nitride embedded in silica on silicon wafers. Long Bragg gratings have been fabricated for narrow linewidth lasers. A narrow stop-band (0.2 nm) Bragg gratings with etched facet chips is achieved in this platform. Heaters have been integrated...

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Bibliographic Details
Published in2019 IEEE Photonics Conference (IPC) pp. 1 - 4
Main Authors Primiani, Peppino, van Dijk, Frederic, Boust, Sylvain, Fedeli, Jean-Marc, Duport, Francois, Gomez, Carmen, Paret, Jean-Francois, Garreau, Alexandre, Mekhazni, Karim, Fortin, Catherine
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2019
Subjects
Bragg gratings
Distributed Bragg reflector lasers
Heating systems
Laser tuning
Optical device fabrication
Optical filters
Optical reflection
Optical waveguides
Quantum well lasers
Temperature measurement
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Summary:The paper presents a fabrication platform based on silicon nitride embedded in silica on silicon wafers. Long Bragg gratings have been fabricated for narrow linewidth lasers. A narrow stop-band (0.2 nm) Bragg gratings with etched facet chips is achieved in this platform. Heaters have been integrated on the chips allowing tuning of the Bragg wavelength over 1.5 nm. Lasers have been obtained and tested by butt-coupling of one of these Bragg gratings to a reflective semiconductor optical amplifier (R-SOA). On these laser cavities we obtained a continuous tuning range of 0.16 nm and a discontinuous tuning range of 1.5 nm.
ISSN:2575-274X
DOI:10.1109/IPCon.2019.8908522