Design of dispersed Rayleigh interferometer for grating mosaic in laser pulse compressors

Yao Hu*, Shanshan Wang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publication2011 International Conference on Optical Instruments and Technology
Subtitle of host publicationOptoelectronic Measurement Technology and Systems
PublisherSPIE
ISBN (Print)9780819488428
DOIs
Publication statusPublished - 2011
Event2011 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems - Beijing, China
Duration: 6 Nov 20119 Nov 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8201
ISSN (Print)0277-786X

Conference

Conference2011 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems
Country/TerritoryChina
CityBeijing
Period6/11/119/11/11

Keywords

  • Grating tiling
  • Interferometry
  • Multiple-degree-of-freedom alignment
  • Piston measurement

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