Athermal silicon optical circuit using half-etched core and silicone

Yuta Takai; Hiroyuki Tsuda

doi:10.1117/12.3002274

12 March 2024 Athermal silicon optical circuit using half-etched core and silicone

Yuta Takai, Hiroyuki Tsuda

Proceedings Volume 12891, Silicon Photonics XIX; 128910F (2024) https://doi.org/10.1117/12.3002274
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

We propose a temperature-insensitive silicon waveguide using a polymer on the top surface of the cladding. The temperature insensitivity of the waveguide is achieved by combining materials with positive and negative thermo-optic coefficients. The material used for the athermal silicon optical circuit proposed in this study is silicone resin. The length of the temperature compensation waveguide was determined based on the phase shifts in the light. This is because, if TO effect is nullified, there should be no phase variation. We input light into the waveguide and simulated the phase after passing through the temperature compensation structure. The amount of phase shift varied with the length of the waveguide when silicone resin was used for the top surface of the clad. The phase shift of the athermal waveguide was approximately 1% to 12% compared to the phase shift of the conventional waveguide.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yuta Takai and Hiroyuki Tsuda "Athermal silicon optical circuit using half-etched core and silicone", Proc. SPIE 12891, Silicon Photonics XIX, 128910F (12 March 2024); https://doi.org/10.1117/12.3002274

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