Broadband Polarization Beam Splitter based on Tilted Subwavelength Gratings on the Si3N4/Si Augmented Low Index Guiding Platform

Can Ozcan; Mo Mojahedi; J. Stewart Aitchison

doi:10.1364/CLEO_AT.2021.JW1A.40

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 2021),
paper JW1A.40
•https://doi.org/10.1364/CLEO_AT.2021.JW1A.40

Broadband Polarization Beam Splitter based on Tilted Subwavelength Gratings on the Si₃N₄/Si Augmented Low Index Guiding Platform

Can Ozcan, Mo Mojahedi, and J. Stewart Aitchison

CLEO: Applications and Technology 2021

San Jose, California United States
9–14 May 2021
ISBN: 978-1-943580-91-0

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Joint Poster Session II (JW1A)

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C. Ozcan, M. Mojahedi, and J. S. Aitchison, "Broadband Polarization Beam Splitter based on Tilted Subwavelength Gratings on the Si3N4/Si Augmented Low Index Guiding Platform," in Conference on Lasers and Electro-Optics, J. Kang, S. Tomasulo, I. Ilev, D. Müller, N. Litchinitser, S. Polyakov, V. Podolskiy, J. Nunn, C. Dorrer, T. Fortier, Q. Gan, and C. Saraceno, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper JW1A.40.

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Abstract

We demonstrate a polarization beam splitter based on the use of subwavelength gratings on an augmented low index waveguide. The design provides <0.65 dB insertion loss and >25 dB extinction ratio with notable fabrication tolerance.

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