Polarization splitters for micron-scale silicon photonics

Dura Shahwar; Matteo Cherchi; Mikko Harjanne; Markku Kapulainen; Timo Aalto

doi:10.1117/12.2576868

5 March 2021 Polarization splitters for micron-scale silicon photonics

Dura Shahwar, Matteo Cherchi, Mikko Harjanne, Markku Kapulainen, Timo Aalto

Author Affiliations +

Proceedings Volume 11691, Silicon Photonics XVI; 1169104 (2021) https://doi.org/10.1117/12.2576868
Event: SPIE OPTO, 2021, Online Only

Abstract

We present polarization splitters for micron-scale silicon photonics based on Mach-Zehnder interferometers (MZI). We have designed the polarization splitters based on an advanced transfer matrix model, then confirmed by numerical simulations. We have fabricated the devices on our 3 µm-thick silicon on insulator (SOI) platform and successfully measured polarization splitting over a wide wavelength range (1450-1650 nm). We have achieved an extinction ratio (ER) >14dB for both polarizations on a bandwidth of 35 nm. However, high ER upto 20 dB is observed when considering one polarization.

Conference Presentation

Citation Download Citation

Dura Shahwar, Matteo Cherchi, Mikko Harjanne, Markku Kapulainen, and Timo Aalto "Polarization splitters for micron-scale silicon photonics", Proc. SPIE 11691, Silicon Photonics XVI, 1169104 (5 March 2021); https://doi.org/10.1117/12.2576868

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