Applied Physics B

, Volume 101, Issue 3, pp 587–591

Compression grating alignment by far-field monitoring

  • F. Liu
  • X. L. Liu
  • Z. H. Wang
  • J. L. Ma
  • X. Liu
  • L. Zhang
  • J. Wang
  • S. J. Wang
  • X. X. Lin
  • Y. T. Li
  • L. M. Chen
  • Z. Y. Wei
  • J. Zhang
Article

DOI: 10.1007/s00340-010-4237-x

Cite this article as:
Liu, F., Liu, X.L., Wang, Z.H. et al. Appl. Phys. B (2010) 101: 587. doi:10.1007/s00340-010-4237-x

Abstract

Slight non-parallelism of the gratings in the compressor of a chirped-pulse amplification laser system produces angular chirp which results in a significant reduction of the focused intensity due to elongation of the pulse duration and enlargement of the focal spot. The effect of three-dimensional relative misalignment angles between two gratings on the far-field pattern of the pulses propagating through them is investigated by ray tracing. The far-field pattern provides two-dimensional information of the uncompensated angular dispersion directly. A simple and intuitive alignment procedure to achieve parallelism of the compression gratings by far-field monitoring is demonstrated experimentally, while the alignment precision is found to be the same as the methods proposed previously.

Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • F. Liu
    • 1
  • X. L. Liu
    • 1
  • Z. H. Wang
    • 1
  • J. L. Ma
    • 1
  • X. Liu
    • 1
  • L. Zhang
    • 1
  • J. Wang
    • 1
    • 2
  • S. J. Wang
    • 1
  • X. X. Lin
    • 1
  • Y. T. Li
    • 1
  • L. M. Chen
    • 1
  • Z. Y. Wei
    • 1
  • J. Zhang
    • 1
    • 3
  1. 1.Beijing National Laboratory for Condensed Matter Physics, Institute of PhysicsChinese Academy of SciencesBeijingP.R. China
  2. 2.Institute of PhysicsNankai UniversityTianjinP.R. China
  3. 3.Department of PhysicsShanghai Jiao Tong UniversityShanghaiP.R. China