300-kW, eye-safe intracavity OPO with efficient pulse shortening

W. Zendzian; J. K. Jabczynski; J. Kwiatkowski

doi:10.1117/12.780427

16 April 2008 300-kW, eye-safe intracavity OPO with efficient pulse shortening

W. Zendzian, J. K. Jabczynski, J. Kwiatkowski

Proceedings Volume 6998, Solid State Lasers and Amplifiers III; 69981F (2008) https://doi.org/10.1117/12.780427
Event: SPIE Photonics Europe, 2008, Strasbourg, France

Abstract

We report on a passively Q-switched end pumped Nd:YLF laser including a noncritically phase-matched KTP singly resonant intracavity optical parametric oscillator (IOPO-KTP). For the Q-switching operation we have used Cr:YAG saturable absorber. The optimized passively Q-switched Nd:YLF laser without IOPO generated linearly polarized pulses of 11.5 ns and 1.07 mJ at 1047 nm. The conversion efficiency of the optimized Q-switched pulse energy at 1047 nm to 1547 nm of signal approached about 47%. For optimizing both Nd:YLF laser and IOPO we have numerically solved theoretical model. We have achieved 1.6-ns duration pulses at 1547 nm with energy of 0.5 mJ and peak power above of 300 kW. The beam quality was excellent (M²≈1).

Citation Download Citation

W. Zendzian, J. K. Jabczynski, and J. Kwiatkowski "300-kW, eye-safe intracavity OPO with efficient pulse shortening", Proc. SPIE 6998, Solid State Lasers and Amplifiers III, 69981F (16 April 2008); https://doi.org/10.1117/12.780427

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KEYWORDS

Optical parametric oscillators

Q switched lasers

Mirrors

Neodymium lasers

Crystals

Ferroelectric materials

Pulsed laser operation

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