Generation of 100-kW-level pulses at 1.53 um in the diode-pumped Er-Yb:glass laser-PPKTP optical parametric amplifier system

G. Karlsson; Vladas Pasiskevicius; A. Fragemann; J. Hellstom; Fredrik Laurell

doi:10.1117/12.517870

6 October 2003 Generation of 100-kW-level pulses at 1.53 um in the diode-pumped Er-Yb:glass laser-PPKTP optical parametric amplifier system

G. Karlsson, Vladas Pasiskevicius, A. Fragemann, J. Hellstom, Fredrik Laurell

Author Affiliations +

Proceedings Volume 5137, International Conference on Lasers, Applications, and Technologies 2002: Advanced Lasers and Systems; (2003) https://doi.org/10.1117/12.517870
Event: International Conference on Lasers, Applications, and Technologies 2002, 2002, Moscow, Russian Federation

Abstract

We report on the use of a compact Er-Yb:glass laser Q-switched by an AOM for seeding two-stage optical parametric amplifier realized in a single PPKTP crystal. We have generated 5 ns long pusles with a pulse energy exceeding 0.5 mJ. The parametric signal generation efficiency in the second amplification stage was 27%, while the pump depletion reached 39%. The two-stage OPA peak power gain was 30.1 dB for the seeding peak powers of 100W, while the gain reached 81 dB for the lowest seed peak powers of 0.7 mW. The OPA generated a diffraction-limited signal beam while maintaining the original spectral width of the seen.

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G. Karlsson, Vladas Pasiskevicius, A. Fragemann, J. Hellstom, and Fredrik Laurell "Generation of 100-kW-level pulses at 1.53 um in the diode-pumped Er-Yb:glass laser-PPKTP optical parametric amplifier system", Proc. SPIE 5137, International Conference on Lasers, Applications, and Technologies 2002: Advanced Lasers and Systems, (6 October 2003); https://doi.org/10.1117/12.517870

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