Title:
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Performance of MgO:PPLN, KTA, and KNbO3 for mid-wave infrared broadband parametric amplification at high average power
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Author:
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Baudisch, M.; Hemmer, M.; Pires, H.; Biegert, Jens
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Other authors:
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Universitat Politècnica de Catalunya. Institut de Ciències Fotòniques |
Abstract:
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The performance of KNbO3, MgO:PPLN and KTA were experimentally compared for broadband mid-wave infrared
parametric amplification at high repetition rate. The seed pulses with an energy of 6.5 μJ were amplified using 410 μJ of
pump at 1064 nm to a maximum pulse energy of 28.9 μJ at 3 μm wavelength and at 160 kHz repetition rate in MgO:PPLN
while supporting a transform limited duration of 73 fs. The high average powers of the interacting beams used in this study,
revealed average power induced processes which limit the scaling of optical parametric amplification: in MgO:PPLN the
pump peak intensity was limited to 3.8 GW/cm2 due to non-permanent beam reshaping while in KNbO3 an absorptioninduced
temperature gradient in the crystal led to permanent internal distortions in the crystal structure when operated above
a pump peak intensity of 14.4 GW/cm2 |
Abstract:
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Peer Reviewed |
Subject(s):
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-Àrees temàtiques de la UPC::Física -Parametric amplifiers -MgO:PPLN -Amplificadors paramètrics |
Rights:
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Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Document type:
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Article - Submitted version Article |
Published by:
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OSA
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