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Applied Physics B

, 125:36 | Cite as

High-energy single-cycle pulse generation in a parametric amplifier with the optimized angular dispersion

  • Xiao Zou
  • Houkun LiangEmail author
  • Shizhen Qu
  • Kun Liu
  • Cheng Liu
  • Qi Jie WangEmail author
  • Ying Zhang
Article
  • 114 Downloads

Abstract

We propose a new method to generate the carrier-envelope phase stable, > 200 µJ, ~ 1.1-cycle laser pulses at 2 µm wavelength, based on an optical parametric amplifier with the optimized angular dispersion. The angularly dispersed non-collinear angle is optimized over the entire bandwidth from 1.3 to 4 µm through the combination of a prism and a designed chirped grating. The phase mismatch is minimized over ~ 1.4 octave bandwidth, supporting the direct amplification of single-cycle pulses. The angularly dispersed signal is amplified to > 200 µJ pulse energy with the freedom of further energy scaling up through a single-stage optical parametric amplifier with a single bulk crystal. By implementing a symmetric 4-f system, the introduced angular and temporal dispersion of the amplified pulses is fully compensated to generate single-cycle pulses. The proposed parametric amplifier with the optimized angular dispersion provides a simple method to generate the high-energy, single-cycle pulses without constrains on nonlinear crystals, amplification wavelengths, pump sources, and compressors.

Notes

Acknowledgements

We acknowledge the financial support from SERC (Grant nos. 1426500050, and 1426500051) from the Agency for Science, Technology and Research (A*STAR), Singapore.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Singapore Institute of Manufacturing TechnologySingaporeSingapore
  2. 2.Centre for OptoElectronics and Biophotonics, School of Electrical and Electronic Engineering, The Photonics InstituteNanyang Technological UniversitySingaporeSingapore

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