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Chin. Opt. Lett.
 Home  List of Issues    Issue 07 , Vol. 16 , 2018    10.3788/COL201816.070501

Five-port beam splitter of a single-groove grating
Changcheng Xiang1;2, Changhe Zhou1, Wei Jia3, and Jun Wu1
1 [Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences], Shanghai 201 800, China
2 [University of Chinese Academy of Sciences], Beijing 100049, China
3 Institute of Photonics Technology, [Jinan University], Guangzhou 51063 2, China

Chin. Opt. Lett., 2018, 16(07): pp.070501

Topic:Diffraction and gratings
Keywords(OCIS Code): 050.1950  050.1970  230.1360  

A single-groove grating for five-port TE-polarization beam splitting under normal incidence at the wavelength of 1550 nm is presented. The transmitted diffraction efficiency of the gratings is over 94.5% with uniformity better than 2%. A physical view of diffraction inside the grating is presented by the simplified modal method (SMM). Initial parameters of the grating profiles are obtained by use of SMM and then optimized by employing rigorous coupled-wave analysis and the simulated annealing algorithm.

Copyright: © 2003-2012 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Posted online:2018/6/28

Get Citation: Changcheng Xiang, Changhe Zhou, Wei Jia, and Jun Wu, "Five-port beam splitter of a single-groove grating," Chin. Opt. Lett. 16(07), 070501(2018)

Note: The authors acknowledge the support of the Shanghai Science and Technology Committee (Nos. 15JC1403500 and 16DZ2290102) and the Chinese Academy of Sciences (No. QYZDJ-SSW-JSC014).


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