Development of a closed-loop cryogenically cooled sub-picosecond regenerative amplifier

P. Sikocinski; T. Miura; Venkatesan Jambunathan; Jens Linnemann; A. Endo; H. Jelinkova; T. Mocek

doi:10.1117/12.2079447

26 March 2015 Development of a closed-loop cryogenically cooled sub-picosecond regenerative amplifier

P. Sikocinski, T. Miura, Venkatesan Jambunathan, Jens Linnemann, A. Endo, H. Jelinkova, T. Mocek

Proceedings Volume 9342, Solid State Lasers XXIV: Technology and Devices; 93421Z (2015) https://doi.org/10.1117/12.2079447
Event: SPIE LASE, 2015, San Francisco, California, United States

Abstract

We are developing joule level picosecond pulse duration laser system operating at repetition rate of 120 Hz. The laser system consists of a seed mode-locked fiber laser and two cryogenically cooled amplifier stages: a single slab regenerative amplifier and a single slab multi-pass amplifier. We have found the displacement of the probe beam caused by mechanical vibrations of the cryostat is less than 0.7 mrad. We have also improved our in-situ gain measurement system by decreasing the spectral line of the narrow band source down to 50 pm. We have found that the emission bandwidth of Yb:YGAG at 160 K is around 7 nm.

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P. Sikocinski, T. Miura, Venkatesan Jambunathan, Jens Linnemann, A. Endo, H. Jelinkova, and T. Mocek "Development of a closed-loop cryogenically cooled sub-picosecond regenerative amplifier", Proc. SPIE 9342, Solid State Lasers XXIV: Technology and Devices, 93421Z (26 March 2015); https://doi.org/10.1117/12.2079447

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