Shaping and amplification of wavelength-tunable mid-infrared femtosecond pulses generated by intra-pulse difference-frequency mixing with spectral focusing

Yuki Yamaguchi, Ryohei Hida, Takakazu Suzuki, Fumihiro Isa, Kenta Yoshikiyo, Leo Fujii, Hirofumi Nemoto, Fumihiko Kannari

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Abstract

Mid-infrared (MIR) laser pulses ranging from 2 to 2.5 μm are generated from a single supercontinuum (SC) pulse by intra-pulse difference-frequency mixing (DFM) with a spectral focusing scheme (SF-DFM). By controlling the spectral phase of the SC pulse with a 4f-pulse shaper utilizing a liquid crystal spatial light modulator, SF-DFM enables us to vary the center wavelength, the bandwidth, and the pulse shape of MIR laser pulses, which are amplified by an optical parametric amplifier using a periodically poled LiNbO3 crystal.

Original languageEnglish
Pages (from-to)C1-C7
JournalJournal of the Optical Society of America B: Optical Physics
Volume35
Issue number12
DOIs
Publication statusPublished - 2018 Dec 1

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ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics

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