Temperature insensitive waveguide interferometer based on subwavelength gratings

Umair A. Korai, Alaine H. Bermello, Michael J. Strain, Ivan Glesk, Aitor V. Velasco

Research output: Contribution to conferenceProceedingpeer-review

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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/ºK is predicted for 100nm bandwidth around 1550nm.
Original languageEnglish
Number of pages3
Publication statusPublished - 11 Dec 2019
Event2nd IEEE British and Irish Conference on Optics and Photonics - IET Savoy London, London, United Kingdom
Duration: 11 Dec 201913 Dec 2019


Conference2nd IEEE British and Irish Conference on Optics and Photonics
Abbreviated titleBICOP 2019
Country/TerritoryUnited Kingdom
Internet address


  • integrated optics
  • athermal design
  • spectroscopy
  • thermo-optic effects
  • ilicon-on-insulator

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