Scalable, internally folded Nd:YAG laser end-pumped by laser diodes

Richard Scheps; Joseph F. Myers Jr.

doi:10.1117/12.146874

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17 June 1993 Scalable, internally folded Nd:YAG laser end-pumped by laser diodes

Richard Scheps, Joseph F. Myers Jr.

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Proceedings Volume 1864, Solid State Lasers IV; (1993) https://doi.org/10.1117/12.146874
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States

Abstract

Two internally folded, scalable laser resonator designs have been demonstrated. One, based on an isosceles right angle prism, was pumped along three axis simultaneously with 3.73 W at 808 nm. It produced 1.3 W at 1.06 (mu) with no evidence of thermal saturation. In addition, good second harmonic conversion efficiency was achieved and 128 mW of low noise output was obtained. The second design is based on a penta-prism. Using five single stripe laser diodes to pump along three separate axes, 4.16 W of absorbed power produced 2.3 W in the TEM₀₀ mode. The slope efficiency was 56%, the optical conversion efficiency was 55%, and the output was linearly polarized. No evidence of thermal saturation was observed up to the maximum pump power used and high conversion efficiency was maintained over the entire range of pump power. The pump threshold power was 48 mW. With an intracavity KTP crystal, 341 mW of cw amplitude-stable output at 532 nm was generated.

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Richard Scheps and Joseph F. Myers Jr. "Scalable, internally folded Nd:YAG laser end-pumped by laser diodes", Proc. SPIE 1864, Solid State Lasers IV, (17 June 1993); https://doi.org/10.1117/12.146874

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