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Optical Engineering

Polarization beam splitter based on cascaded step-size multimode interference coupler
Author(s): Yawen Huang; Zhao Tu; Xuaxiang Yi; Yanping Li; Xingjun Wang
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Paper Abstract

A polarization beam splitter (PBS) based on cascaded step-size multimode interference (MMI) coupler is demonstrated on silicon on insulator. The total area of MMI sections is smaller than 7×600  μm 2 . This PBS shows 25-nm bandwidth for transverse-electric polarization and 20-nm bandwidth for transverse-magnetic polarization with an extinction ratio more than 20 dB. The length of this PBS is reduced to about one ninth of that of the conventional design in MMI sections.

Paper Details

Date Published: 15 July 2013
PDF: 6 pages
Opt. Eng. 52(7) 077103 doi: 10.1117/1.OE.52.7.077103
Published in: Optical Engineering Volume 52, Issue 7
Show Author Affiliations
Yawen Huang, Peking Univ. (China)
Zhao Tu, Peking Univ. (China)
Xuaxiang Yi, Peking Univ. (China)
Yanping Li, Peking Univ. (China)
Xingjun Wang, Peking Univ. (China)


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