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Angular dispersion and temporal change of femtosecond pulses from misaligned pulse compressors

Osvay, Karoly LU ; Kovacs, AP; Heiner, Z; Kurdi, G; Klebniczki, J and Csatari, M (2004) In IEEE Journal of Selected Topics in Quantum Electronics 10(1). p.213-220
Abstract
A misaligned stretcher or compressor in a chirped pulse amplification laser introduces residual angular dispersion into the beam, resulting in temporal distortion of the pulse. We demonstrate that an imaging spectrograph is capable for Measuring the angular dispersion of a laser beam by an accuracy of 0.2 murad/min. Using this technique, the analytical expressions of residual angular dispersion of misaligned prism and grating compressors are experimentally proved. Temporal degradations of short pulses due to angular dispersion are studied by measuring the, temporal stretch of 16-fs pulses, while the issues of contrast deterioration are also discussed. It is proved that the simultaneous; measurement of angular dispersion and pulse duration... (More)
A misaligned stretcher or compressor in a chirped pulse amplification laser introduces residual angular dispersion into the beam, resulting in temporal distortion of the pulse. We demonstrate that an imaging spectrograph is capable for Measuring the angular dispersion of a laser beam by an accuracy of 0.2 murad/min. Using this technique, the analytical expressions of residual angular dispersion of misaligned prism and grating compressors are experimentally proved. Temporal degradations of short pulses due to angular dispersion are studied by measuring the, temporal stretch of 16-fs pulses, while the issues of contrast deterioration are also discussed. It is proved that the simultaneous; measurement of angular dispersion and pulse duration offers the most precise alignment procedure of prismatic and grating compressors. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
pulse characterization, optical pulse compression, contrast, ultrafast optics, pulse temporal
in
IEEE Journal of Selected Topics in Quantum Electronics
volume
10
issue
1
pages
213 - 220
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • wos:000220905600030
  • scopus:2442501484
ISSN
1077-260X
DOI
10.1109/JSTQE.2003.822917
language
English
LU publication?
yes
id
da9f31bf-55d9-4c25-ad80-e7f7e5769c9b (old id 281014)
date added to LUP
2007-10-29 13:34:51
date last changed
2017-11-19 04:06:49
@article{da9f31bf-55d9-4c25-ad80-e7f7e5769c9b,
  abstract     = {A misaligned stretcher or compressor in a chirped pulse amplification laser introduces residual angular dispersion into the beam, resulting in temporal distortion of the pulse. We demonstrate that an imaging spectrograph is capable for Measuring the angular dispersion of a laser beam by an accuracy of 0.2 murad/min. Using this technique, the analytical expressions of residual angular dispersion of misaligned prism and grating compressors are experimentally proved. Temporal degradations of short pulses due to angular dispersion are studied by measuring the, temporal stretch of 16-fs pulses, while the issues of contrast deterioration are also discussed. It is proved that the simultaneous; measurement of angular dispersion and pulse duration offers the most precise alignment procedure of prismatic and grating compressors.},
  author       = {Osvay, Karoly and Kovacs, AP and Heiner, Z and Kurdi, G and Klebniczki, J and Csatari, M},
  issn         = {1077-260X},
  keyword      = {pulse characterization,optical pulse compression,contrast,ultrafast optics,pulse temporal},
  language     = {eng},
  number       = {1},
  pages        = {213--220},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  series       = {IEEE Journal of Selected Topics in Quantum Electronics},
  title        = {Angular dispersion and temporal change of femtosecond pulses from misaligned pulse compressors},
  url          = {http://dx.doi.org/10.1109/JSTQE.2003.822917},
  volume       = {10},
  year         = {2004},
}