High-power Nd:YAG laser with variable reflectivity mirrors

I. P. Nikolov; Ivan Ch. Buchvarov; L. A. Gubanova; Eduard Stepanovich Putilin

doi:10.1117/12.425158

9 April 2001 High-power Nd:YAG laser with variable reflectivity mirrors

I. P. Nikolov, Ivan Ch. Buchvarov, L. A. Gubanova, Eduard Stepanovich Putilin

Proceedings Volume 4397, 11th International School on Quantum Electronics: Laser Physics and Applications; (2001) https://doi.org/10.1117/12.425158
Event: 11th International School on Quantum Electronics: Laser Physics and Applications, 2000, Varna, Bulgaria

Abstract

Experimental investigation of Q-switched Nd:YAG laser, utilizing unstable resonators with variable reflectivity dielectric mirrors is presented. We designed flat-convex and confocal unstable resonator. Gaussian and super-Gaussian variable reflection profiles with various mirror spot sizes are used. Comparison between the used resonator schemes is made by measurement of the following laser parameters: energy extraction, near- and far-field intensity distributions. Output energy of 400 - 450 mJ is obtained for different resonators at repetition frequency up to 5 Hz. The advantages of unstable resonators with variable reflectivity mirrors are demonstrated by efficient frequency conversion of the high power Nd:YAG laser.

Citation Download Citation

I. P. Nikolov, Ivan Ch. Buchvarov, L. A. Gubanova, and Eduard Stepanovich Putilin "High-power Nd:YAG laser with variable reflectivity mirrors", Proc. SPIE 4397, 11th International School on Quantum Electronics: Laser Physics and Applications, (9 April 2001); https://doi.org/10.1117/12.425158

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