Pulsed blue-light generation with KNbO3

Yves Lutz; Daniel Rytz; Antoine Hirth

doi:10.1117/12.349264

24 May 1999 Pulsed blue-light generation with KNbO₃

Yves Lutz, Daniel Rytz, Antoine Hirth

Proceedings Volume 3611, Laser Resonators II; (1999) https://doi.org/10.1117/12.349264
Event: Optoelectronics '99 - Integrated Optoelectronic Devices, 1999, San Jose, CA, United States

Abstract

KNbO₃ yields very high non-linear coefficients. This material is attractive and widely used for the frequency doubling of cw and quasi cw near infrared laser sources. However it is not commonly used for pulsed applications. Frequency doubling of a pulsed high peak power titanium doped sapphire (Ti:S) laser with KNbO₃ has been investigated. Close to 60% conversion efficiencies have been obtained in external cavity single shot operation. Factors limiting the conversion efficiency in a repetitive mode and with longer crystals have been identified. Quadrature second harmonic generation technique has been shown to overcome some of these limitations compared to single crystal technique. First experimental results for frequency doubling the Nd:YAG and Nd:YAlO ⁴F_3/2-⁴I_9/2 laser transition in the pulsed nanosecond regime with KNbO₃ are also presented.

Citation Download Citation

Yves Lutz, Daniel Rytz, and Antoine Hirth "Pulsed blue-light generation with KNbO₃", Proc. SPIE 3611, Laser Resonators II, (24 May 1999); https://doi.org/10.1117/12.349264

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