Non-linear spot-size converter coupler for germanium/Si photodetectors

Marcelo Rubin de Celis; Ruth E. Rubio-Noriega

doi:10.1117/12.2579119

5 March 2021 Non-linear spot-size converter coupler for germanium/Si photodetectors

Marcelo Rubin de Celis, Ruth E. Rubio-Noriega

Proceedings Volume 11691, Silicon Photonics XVI; 1169112 (2021) https://doi.org/10.1117/12.2579119
Event: SPIE OPTO, 2021, Online Only

Conference Poster

Abstract

Coupling between monomode silicon waveguides and Ge photodetectors is challenging due to the size mismatch between both components. This work proposes a non-linear tapered coupling device to couple light from a silicon on insulator waveguide to an SOI Ge photodetector. For our 32.1 µm non-linear spot-size converter, the simulated transmission coefficients in the SCL band for 1550 nm, 1460 nm, and 1625 nm wavelength are -0.0113, -0.059, -0.0092 dB, respectively; while state of the art linear spot-size converters of the same transmission coefficients are around 211% bigger.

Conference Presentation

Citation Download Citation

Marcelo Rubin de Celis and Ruth E. Rubio-Noriega "Non-linear spot-size converter coupler for germanium/Si photodetectors", Proc. SPIE 11691, Silicon Photonics XVI, 1169112 (5 March 2021); https://doi.org/10.1117/12.2579119

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