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@article{Binti:2026:10.1364/ol.607779,
author = {Binti, Mohd Yahaya NA and Runcorn, TH and Mignot, APL and Kudlinski, A and Murray, RT},
doi = {10.1364/ol.607779},
journal = {Optics Letters},
pages = {5097--5097},
title = {Mid-infrared optical parametric amplification pumped with a low-conversion fiber four-wave mixing source},
url = {http://dx.doi.org/10.1364/ol.607779},
volume = {51},
year = {2026}
}
TY - JOUR
AB - <jats:p> We demonstrate an optimized cascaded <jats:italic>χ</jats:italic> <jats:sup>(3)</jats:sup> – <jats:italic>χ</jats:italic> <jats:sup>(2)</jats:sup> source for picosecond mid-infrared pulse generation at 3.34 µm. A 1064 nm Yb-fiber master oscillator power amplifier system pumps a photonic crystal fiber (PCF) to generate a weak Stokes seed at 1.56 µm via four-wave mixing (FWM), which, together with residual pump light, pumps and seeds optical parametric amplification (OPA) in an MgO-doped PPLN crystal. We empirically maximize the OPA idler conversion efficiency by performing a systematic cutback of the PCF to optimize the Stokes seed power relative to the residual pump power. The optimum PCF length of 0.15 m has only 0.03% FWM Stokes conversion and generates 98 mW of idler power (196 nJ pulse energy) at 3.34 µm, with a conversion efficiency of 9.8%. These results show that low-conversion FWM provides an effective self-synchronized seed for compact fiber-pumped mid-infrared parametric sources. </jats:p>
AU - Binti,Mohd Yahaya NA
AU - Runcorn,TH
AU - Mignot,APL
AU - Kudlinski,A
AU - Murray,RT
DO - 10.1364/ol.607779
EP - 5097
PY - 2026///
SN - 0146-9592
SP - 5097
TI - Mid-infrared optical parametric amplification pumped with a low-conversion fiber four-wave mixing source
T2 - Optics Letters
UR - http://dx.doi.org/10.1364/ol.607779
UR - https://doi.org/10.1364/ol.607779
VL - 51
ER -