Four-port beam splitter of a single-groove grating

Changcheng Xiang; Changhe Zhou; Wei Jia; Jin Wang

doi:10.1117/12.2501058

8 November 2018 Four-port beam splitter of a single-groove grating

Changcheng Xiang, Changhe Zhou, Wei Jia, Jin Wang

Proceedings Volume 10818, Holography, Diffractive Optics, and Applications VIII; 1081812 (2018) https://doi.org/10.1117/12.2501058
Event: SPIE/COS Photonics Asia, 2018, Beijing, China

Abstract

A single-groove grating for four-port TE-polarization beam splitting under normal incidence at the wavelength of 632.8nm is presented. The total efficiency of the beam splitter is over 77% with beam split uniformity better than 5%. Rigorous coupled-wave analysis (RCWA) and the simulated annealing (SA) algorithm are employed to design this beam splitter grating. The tolerance of fabrication errors of the grating is analyzed.

Citation Download Citation

Changcheng Xiang, Changhe Zhou, Wei Jia, and Jin Wang "Four-port beam splitter of a single-groove grating", Proc. SPIE 10818, Holography, Diffractive Optics, and Applications VIII, 1081812 (8 November 2018); https://doi.org/10.1117/12.2501058

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