Ultrabroadband, highly flexible amplifier for ultrashort midinfrared laser pulses based on aperiodically poled Mg:LiNbO3

Optics Letters
C HeeseU Keller

Abstract

We present an amplification medium for optical parametric chirped-pulse amplification that allows for ultrabroadband gain in a collinear configuration. Our approach is based on aperiodic quasi-phase-matching (QPM). For the first demonstration of this method in a mid-IR optical parametric chirped-pulse amplifier, we chose a QPM grating design with a linear chirp of its associated spatial frequencies. The resulting 7.4-mm-long, aperiodically poled Mg:LiNbO(3) amplification crystal has a chirp rate of kappa'=-250 cm(-2) and provides gain over the 800 nm bandwidth centered at 3.4 microm. We were able to generate pulses as short as 75 fs and the pulse energy at the output of the optical parametric amplifier before compression was 1.5 microJ. Low thermal load on the amplification medium allows for operation at a high repetition rate, 100 kHz in our case, and high average power limited only by the available pump power.

References

Mar 5, 2009·Optics Express·Olivier ChalusJens Biegert

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Citations

Jan 17, 2017·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Asaf DahanHaim Suchowski
Apr 24, 2013·Optics Express·C R PhillipsM M Fejer
Nov 7, 2019·Optics Express·Tiago de Faria PintoStefan Witte
Dec 25, 2012·Optics Express·Etienne PelletierR J Dwayne Miller
May 26, 2012·Optics Letters·Christian HomannEberhard Riedle
Oct 15, 2011·Optics Express·C R PhillipsMartin E Fermann
Dec 4, 2012·Optics Letters·Yunpei DengNicholas Karpowicz
Oct 17, 2014·Optics Express·B W MayerU Keller
Sep 29, 2017·Optics Letters·Assaf LevanonHaim Suchowski
Apr 3, 2013·Optics Letters·Jui-Yu LaiShang-Da Yang
Mar 16, 2016·Optics Letters·Anat LeshemAdy Arie
Feb 15, 2012·Optics Express·C R Phillips, M M Fejer

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