Journal
OPTICS EXPRESS
Volume 25, Issue 21, Pages 25149-25164Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.25.025149
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Funding
- Science and Technology Commission of Shanghai [17YF1409100, 17ZR1414000, 15XD1502100]
- National Natural Science Foundation of China (NSFC) [61705128, 61727820]
- National Basic Research Program of China [2013CBA01505]
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Quasi-parametric chirped pulse amplification (QPCPA) is a new scheme that enables the amplification of chirped signal pulses without back conversion by depleting the idler pulses. In this paper, we present a numerical study on the bandwidth, efficiency, and robustness of QPCPA. Self-locked phase among the interacting waves is found to be the underlying mechanism for the suppression of back conversion, which allows signal efficiency approaching to the quantum limit even under the phase-mismatch condition, and thus greatly increases the phase-mismatch tolerance of QPCPA. We demonstrate that QPCPA can break through the trade-off between the efficiency and bandwidth encountered in conventional optical parametric amplification, hence supporting highly efficient amplification of few-cycle pulses. (C) 2017 Optical Society of America
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