Blue microchip laser fabricated from Nd:YAG and KNbO{sub 3}

Journal Article · Wed Jan 31 23:00:00 EST 1996 · Optics Letters

DOI:https://doi.org/10.1364/OL.21.000198· OSTI ID:436464

Matthews, D G; Conroy, R S; Sinclair, B D ^[1]; MacKinnon, N ^[2]

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1. J. F. Allen Physics Research Laboratories, School of Physics and Astronomy, University of St. Andrews, North Haugh, St Andrews, Fife KY16 9SS, Scotland (United Kingdom)
2. I E Optomech Ltd., Crabtree Farm, Newnham, Northampton NN11 3ET, England (United Kingdom)

A Nd:YAG/KNbO{sub 3} composite-material microchip laser has generated blue radiation at 473 nm with output powers of 1 mW when diode laser pumped and 9 mW when Ti:sapphire laser pumped. The fundamental radiation generated by the quasi-three-level {sup 4}{ital F}{sub 3/2}{endash}{sup 4}{ital I}{sub 9/2} transition in Nd:YAG at 946 nm was frequency doubled in KNbO{sub 3} angle cut to be type I critically phase matched at 45{degree}C. Despite the normally isotropic nature of Nd:YAG, the fundamental is emitted linearly polarized and orthogonal to the linearly polarized blue radiation. {copyright} {ital 1996 Optical Society of America.}

• Sponsoring Organization: USDOE
• OSTI ID: 436464
• Journal Information: Optics Letters, Journal Name: Optics Letters Journal Issue: 3 Vol. 21; ISSN OPLEDP; ISSN 0146-9592
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
DESIGN
HARMONIC GENERATION
MILLIWATT POWER RANGE
NEODYMIUM LASERS
PERFORMANCE
POLARIZATION
VISIBLE RADIATION