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Proceedings Paper

High-contrast grating hollow-core waveguide splitter applied to optical phased array
Author(s): Che Zhao; Ping Xue; Hanxing Zhang; Te Chen; Chao Peng; Weiwei Hu
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Paper Abstract

A novel hollow-core (HW) Y-branch waveguide splitter based on high-contrast grating (HCG) is presented. We calculated and designed the HCG-HW splitter using Rigorous Coupled Wave Analysis (RCWA). Finite-different timedomain (FDTD) simulation shows that the splitter has a broad bandwidth and the branching loss is as low as 0.23 dB. Fabrication is accomplished with standard Silicon-On-Insulator (SOI) process. The experimental measurement results indicate its good performance on beam splitting near the central wavelength λ = 1550 nm with a total insertion loss of 7.0 dB.

Paper Details

Date Published: 13 November 2014
PDF: 6 pages
Proc. SPIE 9277, Nanophotonics and Micro/Nano Optics II, 92770C (13 November 2014); doi: 10.1117/12.2072416
Show Author Affiliations
Che Zhao, Peking Univ. (China)
Ping Xue, Peking Univ. (China)
Hanxing Zhang, Peking Univ. (China)
Te Chen, Peking Univ. (China)
Chao Peng, Peking Univ. (China)
Weiwei Hu, Peking Univ. (China)

Published in SPIE Proceedings Vol. 9277:
Nanophotonics and Micro/Nano Optics II
Zhiping Zhou; Kazumi Wada, Editor(s)

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