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Proceedings Paper

Design and optimization of optical system for a spectrometer based on VPHT grating
Author(s): Zhong Ren; Guodong Liu; Zhen Huang; Zhihua Xiong
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Paper Abstract

To overcome some drawbacks of optical system for plane and concave grating typed spectrometer, including serious aberration, worse spectral fatness and low diffraction efficiency etc, a novel optical system based on volume phase holographic transmission (VPHT) grating was designed in this paper. For this grating, its manufacture and theories were investigated, and its diffraction efficiency was numerically simulated. In order to validate this designed optical system, the spectral scaling experiment was performed and the spectral resolution reached 2nm, the calibration equation between the scaling wavelength and corresponding pixels was gotten via linear least square fitting algorithm. It was proved that the wavelength absolute value reach 1.7nm on the wavelength of 635nm, the root-mean-square error (RMSE) of full scaling wavelengths was 0.3nm. These experimental results illustrated that the design of the optical system for spectrometer based on VPHT grating is good.

Paper Details

Date Published: 5 November 2014
PDF: 9 pages
Proc. SPIE 9272, Optical Design and Testing VI, 92720X (5 November 2014); doi: 10.1117/12.2070845
Show Author Affiliations
Zhong Ren, Jiangxi Science and Technology Normal Univ. (China)
Nanchang Univ. (China)
Guodong Liu, Jiangxi Science and Technology Normal Univ. (China)
Zhen Huang, Jiangxi Science and Technology Normal Univ. (China)
Zhihua Xiong, Jiangxi Science and Technology Normal Univ. (China)

Published in SPIE Proceedings Vol. 9272:
Optical Design and Testing VI
Yongtian Wang; Chunlei Du; José Sasián; Kimio Tatsuno, Editor(s)

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