W1 photonic crystal slab waveguide as an ultra-compact TE-pass polarization filter

Chandra Prakash; Partha Saha; Mrinal Sen

doi:10.1117/12.2512165

4 March 2019 W1 photonic crystal slab waveguide as an ultra-compact TE-pass polarization filter

Chandra Prakash, Partha Saha, Mrinal Sen

Proceedings Volume 10927, Photonic and Phononic Properties of Engineered Nanostructures IX; 109272A (2019) https://doi.org/10.1117/12.2512165
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

An ultra-compact TE-Pass polarization filter has been designed using silicon-on-insulator based W1 Photonic crystal (PhC) slab waveguide structure. The proposed filter has been designed by judicial choice of dimensions of the W1 PhC waveguide, so that it can pass only the TE polarized light and block the TM polarized light. A high extinction ratio ≈34 dB, with nearly ≈1.5 dB insertion loss, has been achieved at wavelength 1550 nm in ≈5 μm long device. The simple structure of the device can be fabricated in single step of lithography with the well-established CMOS fabrication technique.

Citation Download Citation

Chandra Prakash, Partha Saha, and Mrinal Sen "W1 photonic crystal slab waveguide as an ultra-compact TE-pass polarization filter", Proc. SPIE 10927, Photonic and Phononic Properties of Engineered Nanostructures IX, 109272A (4 March 2019); https://doi.org/10.1117/12.2512165

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