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A CMOS compatible ultracompact silicon photonic optical add-drop multiplexer with misaligned Sidewall Bragg gratings

Saber, Md Ghulam, Xing, Zhenping, Patel, David, El-Fiky, Eslam, Abadia, Nicolas, Wang, Yun, Jacques, Maxime, Morsy-Osman, M. and Plant, David V. 2017. A CMOS compatible ultracompact silicon photonic optical add-drop multiplexer with misaligned Sidewall Bragg gratings. IEEE Photonics Journal 9 (3) , 6601010. 10.1109/JPHOT.2017.2703857

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Abstract

We experimentally and via simulations demonstrate ultracompact single-stage and cascaded optical add-drop multiplexers using misaligned sidewall Bragg grating in a Mach-Zehnder interferometer for the silicon-on-insulator platform. The single-stage configuration has a device footprint of 400 μm × 90 μm, and the cascaded configuration has a footprint of 400 μm × 125 μm. The proposed designs have 3-dB bandwidths of 6 nm and extinction ratios of 25 dB and 51 dB, respectively, and have been fabricated for the transverse electric mode. A minimum lithographic feature size of 80 nm is used in our design, which is within the limitation of 193 nm deep ultraviolet lithography.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Physics and Astronomy
Publisher: Institute of Electrical and Electronics Engineers (IEEE): OAJ
ISSN: 1943-0655
Date of First Compliant Deposit: 13 November 2018
Date of Acceptance: 9 May 2017
Last Modified: 15 May 2019 14:14
URI: http://orca.cf.ac.uk/id/eprint/116720

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