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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 18 — Sep. 5, 2005
  • pp: 6807–6814

Pulse compression during second-harmonic generation in engineered aperiodic quasi-phase-matching gratings

Pingchuan Li, Xianfeng Chen, Yuping Chen, and Yuxing Xia  »View Author Affiliations

Optics Express, Vol. 13, Issue 18, pp. 6807-6814 (2005)

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We theoretically propose a new procedure of designing quasi-phase-matching (QPM) gratings for compressing optical ultra-short pulses during second-harmonic generation. The grating consists of blocks of crystal with same block length and the direction of spontaneous polarization of each block is determined by optimal algorithm, by which the sign of the nonlinear coefficient of each block is optimized to make the phase response of the grating same for different wavelength at second harmonic waves, so that the generated second harmonic pulse from the end of the crystal will be compressed during nonlinear optical frequency conversion process.

© 2005 Optical Society of America

OCIS Codes
(140.7090) Lasers and laser optics : Ultrafast lasers
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4360) Nonlinear optics : Nonlinear optics, devices
(320.5520) Ultrafast optics : Pulse compression

ToC Category:
Research Papers

Original Manuscript: July 25, 2005
Revised Manuscript: August 18, 2005
Published: September 5, 2005

Pingchuan Li, Xianfeng Chen, Yuping Chen, and Yuxing Xia, "Pulse compression during second-harmonic generation in engineered aperiodic quasi-phase-matching gratings," Opt. Express 13, 6807-6814 (2005)

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