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Proceedings Paper

Design of dispersed Rayleigh interferometer for grating mosaic in laser pulse compressors
Author(s): Yao Hu; Shanshan Wang
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Paper Abstract

Dispersed Rayleigh Interferometer (DRI) is designed for 3 degree-of-freedom alignment of a grating pair contained in chirped-pulse-amplification laser pulse system. The working Gaussian pulse laser spectrally centered at 1053 nm with an FWHM bandwidth of 5 nm is utilized as the broadband light source. The relationship of DRI interferograms and alignment errors is simulated, based on which the alignment criteria by image processing method are determined. Structural parameters of the DRI are carefully designed according to the simulations. Theoretically, the final coarse measurement range for piston error is 5 mm, with positional sensitivity of 20 nm and angular sensitivity of 8 μrad within a fine measurement range of 500 μm.

Paper Details

Date Published: 30 November 2011
PDF: 6 pages
Proc. SPIE 8201, 2011 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 82010L (30 November 2011); doi: 10.1117/12.904083
Show Author Affiliations
Yao Hu, Beijing Institute of Technology (China)
Shanshan Wang, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 8201:
2011 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems
Xinyong Dong; Xiaoyi Bao; Perry Ping Shum; Tiegen Liu, Editor(s)

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