Journal Article

PUBDB-2017-00242

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png 7  $\mu$m, ultrafast, sub-millijoule-level mid-infrared optical parametric chirped pulse amplifier pumped at 2 $\mu$m

Sanchez, D. (Corresponding author) ; Hemmer, M.CFEL*DESY* ; Baudisch, M. ; Cousin, S. L. ; Zawilski, K. ; Schunemann, P. ; Chalus, O.Extern* ; Simon-Boisson, C. ; Biegert, J.

2016
OSA Washington, DC

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Please use a persistent id in citations: doi:10.1364/OPTICA.3.000147  doi:10.3204/PUBDB-2017-00242

Abstract: We present a novel all-fiber pumped optical parametric chirped pulse amplifier (OPCPA) architecture to generate self-carrier-to-envelope-phase stable, sub-eight-optical-cycle duration pulses at 7 μm wavelength approaching millijoulelevel pulse energy at 100 Hz repetition rate. The system yields a peak power of 1.1 GW and, if focused to the diffraction limit, would reach a peak intensity of 7 × 10$^{14}$ W∕cm$^2$. The OPCPA is pumped by a 2 μm Ho:YLF chirped pulse amplifier to leverage the highly efficient and broadband response of the nonlinear crystal ZGP. The 7 μm seed at 100 MHz is generated via difference frequency generation from an Er:Tm:Ho multi-arm fiber frequency comb, and a fraction of its output optically injects the Ho:YLF amplifier. Whilethe pulse bandwidth at 7 μm is perfectly suited for nonlinear and spectroscopic applications, current parameters offer, for the first time, to the best of our knowledge, the possibility to explore strong-field physics in an entirely new wavelength range with a ponderomotive force 77 times larger than from an 800 nm source. The overall OPCPA system is very compact and provides a new tool for investigations directly in the molecular fingerprint region of the electro-magnetic spectrum or to drive high harmonic generation to produce fully coherent x-rays in the multi-kiloelectron-volt range and possibly zeptosecond temporal waveforms.

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Contributing Institute(s):

1. Ultrafast Lasers & X-rays Division (FS-CFEL-2)
2. FS-CFEL-2 (CFEL-UFOX)

Research Program(s):

1. 6211 - Extreme States of Matter: From Cold Ions to Hot Plasmas (POF3-621) (POF3-621)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2016

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Database coverage:
; ; Current Contents - Physical, Chemical and Earth Sciences ; Free to read ; IF >= 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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