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Proceedings Paper

Ultra-compact and broadband orthogonal coupler between strip and slot silicon waveguides
Author(s): Fei Li; Xiaofeng Hu; Jiayang Wu; Linjie Zhou; Yikai Su
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Paper Abstract

We propose an ultra-compact and broadband orthogonal coupler between a strip waveguide and a slot waveguide. Numerical simulations show that a 700-nm wide (full width at half maximum) coupling spectrum can be theoretically achieved and a coupling efficiency as high as 73% around 1500-nm wavelength can be obtained. The coupling length is only about 475 nm which makes the coupler very compact. This configuration does not include a tapering section and has a high tolerance to the waveguide height, alleviating the stringent fabrication requirements.

Paper Details

Date Published: 29 November 2011
PDF: 6 pages
Proc. SPIE 8307, Passive Components and Fiber-Based Devices VIII, 83070B (29 November 2011); doi: 10.1117/12.904221
Show Author Affiliations
Fei Li, Shanghai Jiao Tong Univ. (China)
Xiaofeng Hu, Shanghai Jiao Tong Univ. (China)
Jiayang Wu, Shanghai Jiao Tong Univ. (China)
Linjie Zhou, Shanghai Jiao Tong Univ. (China)
Yikai Su, Shanghai Jiao Tong Univ. (China)

Published in SPIE Proceedings Vol. 8307:
Passive Components and Fiber-Based Devices VIII
Bishnu P. Pal, Editor(s)

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