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Applied Optics

Applied Optics


  • Vol. 38, Iss. 24 — Aug. 20, 1999
  • pp: 5250–5253

Dispersion-free transient-grating frequency-resolved optical gating

Ming Li, John P. Nibarger, Chunlei Guo, and George N. Gibson  »View Author Affiliations

Applied Optics, Vol. 38, Issue 24, pp. 5250-5253 (1999)

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We have developed a compact dispersion-free TG (transient-grating) FROG (frequency-resolved optical gating) by utilizing a mask that separates the input beam into three distinct beams focused into fused silica to create the FROG signal. Two of the beams are reflected off the same set of mirrors to ensure identical optical paths, eliminating the difficulty in establishing zero time delay between the beams. In addition, the use of only reflective optics avoids material dispersion in the FROG except for the mixing crystal. This TG FROG is capable of operating with an intensity of 1 × 1011 W/cm2 and has resolutions less than 0.5 and 1.3 fs for 25- and 10-fs input pulses, respectively.

© 1999 Optical Society of America

OCIS Codes
(190.1900) Nonlinear optics : Diagnostic applications of nonlinear optics
(320.0320) Ultrafast optics : Ultrafast optics
(320.7100) Ultrafast optics : Ultrafast measurements

Original Manuscript: January 25, 1999
Revised Manuscript: June 9, 1999
Published: August 20, 1999

Ming Li, John P. Nibarger, Chunlei Guo, and George N. Gibson, "Dispersion-free transient-grating frequency-resolved optical gating," Appl. Opt. 38, 5250-5253 (1999)

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