Temperature Insensitive Waveguide Interferometer based on Subwavelength Gratings

Temperature Insensitive Waveguide Interferometer based on Subwavelength Gratings

We present a design for a temperature insensitive Mach-Zehnder interferometer in which temperature-compensating segment is achieved through tailored subwavelength gratings. By engineering the thermal response and the relative length of this segment, an overall temperature insensitivity below ±4pm/°K...

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Bibliographic Details
Published in:2019 IEEE 2nd British and Irish Conference on Optics and Photonics (BICOP) pp. 1 - 4
Main Authors: Korai, Umair A., Bermello, Alaine H., Strain, Michael J., Glesk, Ivan, Velasco, Aitor V.
Format: Conference Proceeding
Language:English
Published: IEEE 01-12-2019
Subjects:
athermal design
Gratings
Integrated optics
Optical waveguides
Optics
Photonics
Sensitivity
Silicon
silicon-on-insulator
spectroscopy
Temperature sensors
thermo-optic effects
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Summary:We present a design for a temperature insensitive Mach-Zehnder interferometer in which temperature-compensating segment is achieved through tailored subwavelength gratings. By engineering the thermal response and the relative length of this segment, an overall temperature insensitivity below ±4pm/°K is predicted for 100nm bandwidth around 1550nm.
DOI:10.1109/BICOP48819.2019.9059587