30 W dual active element Yb:KGW regenerative amplifier for amplification of sub - 500fs pulses

Darius Stučinskas; Roman Antipenkov; Arūnas Varanavičius

doi:10.1117/12.753021

10 August 2007 30 W dual active element Yb:KGW regenerative amplifier for amplification of sub - 500fs pulses

Darius Stučinskas, Roman Antipenkov, Arūnas Varanavičius

Proceedings Volume 6731, International Conference on Lasers, Applications, and Technologies 2007: Advanced Lasers and Systems; 67312Y (2007) https://doi.org/10.1117/12.753021
Event: International Conference on Lasers, Applications, and Technologies '07, 2007, Minsk, Belarus

Abstract

We report on dual active element Yb:KGW regenerative amplifier that provides ultrashort pulses in the 0.3 mJ range at high repetition rates. Each active element was pumped by two 50 W diode pump modules at 980 nm. 30W average power was obtained at 100 kHz repetition rate. Measured spectrum width of 5,4 nm allows for compression of amplified pulses to sub-300 fs pulse duration. As output power increases above 15 W nearly symmetrical Gaussian profile beam becomes slightly elliptical, although remains Gaussian in transverse directions. The measured beam quality parameter M² is below 1,5 even at maximum output power.

Citation Download Citation

Darius Stučinskas, Roman Antipenkov, and Arūnas Varanavičius "30 W dual active element Yb:KGW regenerative amplifier for amplification of sub - 500fs pulses", Proc. SPIE 6731, International Conference on Lasers, Applications, and Technologies 2007: Advanced Lasers and Systems, 67312Y (10 August 2007); https://doi.org/10.1117/12.753021

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