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