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Jitter-compensated Yb:YAG thin-disc laser as a pump for the broadband OPCPA front-end of the ELI-Beamlines system
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SYSNO ASEP 0478163 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Jitter-compensated Yb:YAG thin-disc laser as a pump for the broadband OPCPA front-end of the ELI-Beamlines system Author(s) Antipenkov, Roman (FZU-D) ORCID
Green, Jonathan T. (FZU-D) RID
Batysta, František (FZU-D) RID
Naylon, Jack A. (FZU-D) RID
Zervos, Charalampos (FZU-D) RID
Novák, Jakub (FZU-D) RID
Bakule, Pavel (FZU-D) RID, ORCID
Rus, Bedřich (FZU-D) ORCIDNumber of authors 8 Article number 895917 Source Title Solid State Lasers XXIII - Technology and Devices. - Bellingham : SPIE, 2014 / Clarkson W.A. ; Shori R.K. - ISSN 0277-786X - ISBN 978-0-8194-9872-4 Pages s. 1-7 Number of pages 7 s. Publication form Print - P Action Solid State Lasers XXIII - Technology and Devices Event date 02.02.2014-04.02.2014 VEvent location San Francisco Country US - United States Event type WRD Language eng - English Country US - United States Keywords thin-disc laser ; timing jitter ; OPCPA Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) R&D Projects ED1.1.00/02.0061 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EE.2.3.20.0091 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support FZU-D - RVO:68378271 UT WOS 000335902300034 EID SCOPUS 84897563904 DOI 10.1117/12.2039751 Annotation We report on a temporal jitter-compensated Yb:YAG thin-disc laser as a pump source for the front-end OPCPA of ELIBeamlines high energy and repetition rate system. The main advantage of using picosecond Yb:YAG thin-disc lasers is that relatively high energies in the kHz repetition rate range can be easily accessed. Although in our case the pump laser is optically synchronized to the OPCPA seeding Ti:Sapph laser, the stability of the OPCPA output gets heavily affected by delay jitter due to a large number of roundtrips in the regenerative amplifier cavity and slight ambient temperature drifts. Since interacting pulses are only ~1.5 ps in duration, an additional active stabilization of the pump path length corresponding to sub-100 fs delay precision must be implemented. In our work we demonstrate a novel design of a jitter stabilization system which employs a cross-correlation setup employing parametric amplification in two perpendicularly oriented nonlinear crystals. A small fraction of the OPCPA seed signal is being locked between cross-polarized and delayed replicas of a pump pulse. The feedback signal for the delay compensation is acquired by coupling the polarization-separated parts of the parametrically amplified signal into two channels of a balanced photodetector. The delay stabilization is achieved mainly by adjusting the cavity length of the regenerative amplifier with a piezo-mounted mirror. The proposed setup allows reducing the temporal jitter of Yb:YAG thin-disc regenerative amplifier to tens of fs RMS and maintaining it over extended periods of time. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2018
Number of the records: 1