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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 11 — May. 24, 2010
  • pp: 11689–11699

Very broad gain bandwidth parametric amplification in nonlinear crystals at critical wavelength degeneracy

R. Dabu  »View Author Affiliations

Optics Express, Vol. 18, Issue 11, pp. 11689-11699 (2010)

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Gain spectra were calculated at critical wavelength degeneracy (CWD) in a collinear phase-matching geometry optical parametric amplification (OPA) process. The frequency bandwidth available through CWD-OPA is broader compared to the gain bandwidth obtained by the non-collinear OPA geometry. A solution for very broad bandwidth chirped pulse amplification based on partially deuterated DKDP (P-DKDP) crystals, pumped by pulsed green lasers, is proposed. 1.38 x 1014 Hz frequency bandwidth and peak intensity gain G ≈62 were calculated in a 5-mm long 58% deuterated DKDP crystal, pumped by 527-nm wavelength at 64-GW/cm2 intensity. Parametric amplification at CWD in few-mm thin P-DKDP crystals, pumped by picosecond pulses of nearly 100-GW/cm2 intensity, possesses a true potential for generating high energy laser pulses compressible to one-cycle duration.

© 2010 OSA

OCIS Codes
(140.7090) Lasers and laser optics : Ultrafast lasers
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers

ToC Category:
Nonlinear Optics

Original Manuscript: March 29, 2010
Revised Manuscript: April 30, 2010
Manuscript Accepted: May 5, 2010
Published: May 18, 2010

R. Dabu, "Very broad gain bandwidth parametric amplification in nonlinear crystals at critical wavelength degeneracy," Opt. Express 18, 11689-11699 (2010)

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