Presentation
5 March 2021 Kilowatt-average-power compression of millijoule pulses in a gas-filled multi-pass cell
Christian Grebing, Michael Müller, Joachim Buldt, Henning Stark, Jens Limpert
Author Affiliations +
Abstract
We demonstrate the 6.5-fold compression of 1-mJ 200-fs pulses by spectral broadening in a gas-filled multi-pass cell and subsequent chirped-mirror compression. A coherently-combined fiber laser source is compressed with an overall power efficiency of ~95% resulting in a record compressed power of >950 W. In a second experiment, the same overall spectral broadening is obtained with the nonlinear phase per medium pass enhanced to well beyond 3 rad while still retaining all the favorable properties of the multi-pass cell configuration. This may enable an even higher power efficiency beyond 95%.
Conference Presentation
© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Christian Grebing, Michael Müller, Joachim Buldt, Henning Stark, and Jens Limpert "Kilowatt-average-power compression of millijoule pulses in a gas-filled multi-pass cell", Proc. SPIE 11664, Solid State Lasers XXX: Technology and Devices, 116640Q (5 March 2021); https://doi.org/10.1117/12.2578417
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KEYWORDS
Phase shifts

Fiber lasers

Femtosecond phenomena

Laser systems engineering

Picosecond phenomena

Ultrafast phenomena

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