Compression of picosecond pulses from a thin-disk laser to 30fs at 4W average power

Optics Express
Bo-Han ChenTamas Nagy

Abstract

We investigate two approaches for the spectral broadening and compression of 1-ps long pulses of a thin-disk laser amplifier running at 50 kHz repetition rate at 1030 nm wavelength. We find that with a single, 2.66-m long stretched flexible hollow fiber filled with xenon gas, Fourier transform limited output pulse duration of 66 fs can be directly reached. For larger pulse shortening, we applied a hybrid cascaded approach involving a BBO-based pre-compressor and a long hollow fiber. We could achieve 33-times temporal shortening of 1-ps pulses down to a duration of 30 fs at an overall efficiency of ~29% with an output power level of 3.7 W. These results demonstrate the potential of stretched flexible fibers with their free length scalability for shortening laser pulses of moderate peak power.

References

Jun 21, 2008·Applied Optics·Tamas NagyPeter Simon
Aug 6, 2009·Optics Express·P RussbueldtR Poprawe
Jan 1, 1992·Optics Letters·R DesalvoH Vanherzeele
Jan 19, 2010·Optics Letters·Tino EidamAndreas Tünnermann
Dec 18, 2010·Optics Letters·P RussbueldtR Poprawe
Nov 18, 2011·Optics Letters·Tamas NagyPeter Simon
Oct 2, 2013·Optics Letters·Steffen HädrichAndreas Tünnermann
Aug 29, 2014·Optics Letters·Jan RothhardtAndreas Tünnermann
Sep 29, 2015·Scientific Reports·Vladislav S YakovlevPeter Baum
Apr 23, 2016·Science·C KealhoferP Baum
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Sep 16, 2016·Optics Letters·Steffen HädrichJens Limpert
Mar 1, 2017·Optics Express·Sterling BackusHenry Kapteyn

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