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Proceedings Paper

Study on the diffraction performance of the etched blazed grating
Author(s): Shuping Li; Xiangdiao Deng; Jingping Zhu
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Paper Abstract

The diffraction properties of a silica-based etched diffraction grating are investigated by numerical simulation in threedimension. The field distribution of the electromagnetic filed in the near and far away groove area, the diffraction efficiency and spectral response of 8 channels are analyzed respectively. The numerical results show that the diffraction angle is not satisfied the famous grating formula, the deviation of the diffraction angle is increasing with the diffraction order. And when the groove depth is in the low and medium modulation region, the diffraction efficiency reaches over 90%, and the spectral response of an etched grating is uniform within the fiber communication spectrum range.

Paper Details

Date Published: 17 May 2010
PDF: 6 pages
Proc. SPIE 7719, Silicon Photonics and Photonic Integrated Circuits II, 77191L (17 May 2010); doi: 10.1117/12.854093
Show Author Affiliations
Shuping Li, Xi'an Jiaotong Univ. (China)
Xiangdiao Deng, Xi'an Jiaotong Univ. (China)
Jingping Zhu, Xi'an Jiaotong Univ. (China)


Published in SPIE Proceedings Vol. 7719:
Silicon Photonics and Photonic Integrated Circuits II
Giancarlo Cesare Righini, Editor(s)

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