Generation of high contrast and high spatial quality idler from a low-gain optical parametric amplifier

A. B. Sharba; G. Nersisyan; M. Zepf; N. H. Stuart; R. A. Smith; M. Borghesi; G. Sarri

doi:10.1364/AO.55.009341

Generation of high contrast and high spatial quality idler from a low-gain optical parametric amplifier

A. B. Sharba^*, G. Nersisyan, M. Zepf, N. H. Stuart, R. A. Smith, M. Borghesi, G. Sarri

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

The temporal contrast of a regeneratively amplified, sub-picosecond pulse is enhanced by employing a low-gain optical parametric amplification stage self-pumped by the second harmonic of the pulse. Through careful characterization of the two related nonlinear processes and optimization of the non-collinear geometry, a robust high-contrast idler pulse has been generated, with excellent spatial quality in both the near and far field. The overall energy conversion efficiency exceeds 14%, with 33% intensity conversion efficiency. The temporal cleaning is implemented without any bandwidth losses or spectral shift and produces approximately 20% temporal shortening. These experimental findings are in excellent agreement with numerical calculations.

Original language	English
Pages (from-to)	9341-9346
Number of pages	6
Journal	Applied Optics
Volume	55
Issue number	33
Early online date	18 Oct 2016
DOIs	https://doi.org/10.1364/AO.55.009341
Publication status	Published - 20 Nov 2016

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/AO.55.009341Licence: Unspecified

Generation of High-Contrast and High-Spatial Quality Idler from a Low-Gain Optical Parametric Amplifier
© 2016 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited
Accepted author manuscript, 1.59 MBLicence: Unspecified

Cite this

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title = "Generation of high contrast and high spatial quality idler from a low-gain optical parametric amplifier",

abstract = "The temporal contrast of a regeneratively amplified, sub-picosecond pulse is enhanced by employing a low-gain optical parametric amplification stage self-pumped by the second harmonic of the pulse. Through careful characterization of the two related nonlinear processes and optimization of the non-collinear geometry, a robust high-contrast idler pulse has been generated, with excellent spatial quality in both the near and far field. The overall energy conversion efficiency exceeds 14%, with 33% intensity conversion efficiency. The temporal cleaning is implemented without any bandwidth losses or spectral shift and produces approximately 20% temporal shortening. These experimental findings are in excellent agreement with numerical calculations.",

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AU - Sharba, A. B.

AU - Nersisyan, G.

AU - Zepf, M.

AU - Stuart, N. H.

AU - Smith, R. A.

AU - Borghesi, M.

AU - Sarri, G.

PY - 2016/11/20

Y1 - 2016/11/20

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AB - The temporal contrast of a regeneratively amplified, sub-picosecond pulse is enhanced by employing a low-gain optical parametric amplification stage self-pumped by the second harmonic of the pulse. Through careful characterization of the two related nonlinear processes and optimization of the non-collinear geometry, a robust high-contrast idler pulse has been generated, with excellent spatial quality in both the near and far field. The overall energy conversion efficiency exceeds 14%, with 33% intensity conversion efficiency. The temporal cleaning is implemented without any bandwidth losses or spectral shift and produces approximately 20% temporal shortening. These experimental findings are in excellent agreement with numerical calculations.

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JO - Applied Optics

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Generation of high contrast and high spatial quality idler from a low-gain optical parametric amplifier

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