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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 18 — Jun. 20, 2012
  • pp: 3989–3994

Accuracy of single-shot autocorrelation measurements of petawatt laser pulses

Xiaoping Ouyang, Jingui Ma, Lin Yang, Shunxing Tang, Chong Liu, Yonghua Peng, Liejia Qian, Baoqiang Zhu, Jianqiang Zhu, and Zunqi Lin  »View Author Affiliations

Applied Optics, Vol. 51, Issue 18, pp. 3989-3994 (2012)

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At the Shen Guang II (SGII) Petawatt Laser Facility, measurements of large-energy, single-shot laser pulses sometimes feature asymmetric autocorrelation signals, causing uncertainty in the measurement of compressed pulses. This study presents a method for defining and describing the asymmetry of autocorrelation signals. We discuss two sources of asymmetry: the nonuniform distribution of the near field excited by a beam, and the rotation of autocorrelator arms from the cylinder lens. The pulsewidth of an asymmetric autocorrelation signal is shorter than its real width. After updating the autocorrelator, the single-shot autocorrelator for the SGII petawatt laser exhibits a measurement uncertainty of below 12.3%. Recommendations on reducing asymmetry in large-energy, single-shot autocorrelation are discussed.

© 2012 Optical Society of America

OCIS Codes
(120.4640) Instrumentation, measurement, and metrology : Optical instruments
(140.7090) Lasers and laser optics : Ultrafast lasers
(320.7080) Ultrafast optics : Ultrafast devices
(320.7100) Ultrafast optics : Ultrafast measurements

ToC Category:
Lasers and Laser Optics

Original Manuscript: January 5, 2012
Revised Manuscript: April 29, 2012
Manuscript Accepted: April 29, 2012
Published: June 12, 2012

Xiaoping Ouyang, Jingui Ma, Lin Yang, Shunxing Tang, Chong Liu, Yonghua Peng, Liejia Qian, Baoqiang Zhu, Jianqiang Zhu, and Zunqi Lin, "Accuracy of single-shot autocorrelation measurements of petawatt laser pulses," Appl. Opt. 51, 3989-3994 (2012)

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