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Title: 9  μm few-cycle optical parametric chirped-pulse amplifier based on LiGaS2
Authors: Qu, Shizhen
Liang, Houkun
Liu, Kun
Zou, Xiao
Li, Wenkai
Wang, Qi Jie
Zhang, Ying
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2019
Source: Qu, S., Liang, H., Liu, K., Zou, X., Li, W., Wang, Q. J. & Zhang, Y. (2019). 9  μm few-cycle optical parametric chirped-pulse amplifier based on LiGaS2. Optics Letters, 44(10), 2422-2425.
Journal: Optics Letters
Abstract: We report a long-wavelength mid-infrared (mid-IR), few-cycle optical parametric chirped-pulse amplifier (OPCPA) based on LiGaS2 crystals, pumped by a 1 μm Yb:YAG laser, at a 10 kHz repetition rate. The mid-IR OPCPA system generates pulses centered at 9 μm, with 1 4 μJ pulse energy and 140 mW average power. A 142 fs pulse width, which corresponds to less than 5 optical cycles at 9 μm, is measured by an interferometric autocorrelator. This is, to the best of our knowledge, the first long-wavelength mid-IR OPCPA pumped at 1 μm wavelength. It paves the way for the energy and power scaling of the ultrafast long-wavelength mid-IR lasers by utilizing advanced high-energy, high-power 1 μm pump lasers.
ISSN: 0146-9592
DOI: 10.1364/OL.44.002422
Rights: © 2019 Optical Society of America. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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