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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 47, Iss. 32 — Nov. 10, 2008
  • pp: 6058–6063

Miniature pulse compressor of deep-etched gratings

Wei Jia, Changhe Zhou, Jijun Feng, and Enwen Dai  »View Author Affiliations

Applied Optics, Vol. 47, Issue 32, pp. 6058-6063 (2008)

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We propose a miniature pulse compressor that can be used to compensate the group velocity dispersion that is produced by a commercial femtosecond laser cavity. The compressor is composed of two identical highly efficient deep-etched transmissive gratings. Compared with prism pairs, highly efficient deep-etched transmissive grating pairs are lightweight and small. With an optimized groove depth and a duty cycle, 98% diffraction efficiency of the 1 transmissive order can be achieved at a wavelength of 800 nm under Littrow conditions. The deep-etched gratings are fabricated in fused silica by inductively coupled plasma etching. With a pair of the fabricated gratings, the input positively chirped 73.9 fs pulses are neatly compressed into the nearly Fourier transform-limited 43.2 fs pulses. The miniature deep-etched grating-based pulse compressor should be of interest for practical applications.

© 2008 Optical Society of America

OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(320.5520) Ultrafast optics : Pulse compression

ToC Category:
Diffraction and Gratings

Original Manuscript: July 23, 2008
Revised Manuscript: September 26, 2008
Manuscript Accepted: October 8, 2008
Published: November 5, 2008

Wei Jia, Changhe Zhou, Jijun Feng, and Enwen Dai, "Miniature pulse compressor of deep-etched gratings," Appl. Opt. 47, 6058-6063 (2008)

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