1 June 1994 Growth, properties, and applications of potassium niobate single crystals
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Proceedings Volume 2115, Visible and UV Lasers; (1994) https://doi.org/10.1117/12.172743
Event: OE/LASE '94, 1994, Los Angeles, CA, United States
Production refinements and pragmatic optical properties of the frequency converter crystal KNbO3 (KN) are highlighted regarding its commercialization. The growth, morphological orientation, and processing of KN crystals into devices are outlined. Passive absorption data are presented that define the effective window range for KN devices. An absorption band at 2.85 micrometers is attributed to the presence of OH groups in the crystal, and its vibrational strength varies with crystal growth conditions and incident polarized light orientation. Although blue light induced infrared absorption (BLIIRA) can reduce second harmonic generation (SHG) efficiency at high powers, single-pass conversion efficiencies of 1%/W(DOT)cm may be achieved with incident fundamental powers of 10 W. The ability of KN to noncritically phasematch by temperature tuning provides blue-green wavelengths; together with critical angle-tuned phasematching, the entire visible spectrum may be accessed with efficient SHG conversion.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Gregory J. Mizell, Gregory J. Mizell, William R. Fay, William R. Fay, Theodore Alekel, Theodore Alekel, Daniel Rytz, Daniel Rytz, Mark H. Garrett, Mark H. Garrett, } "Growth, properties, and applications of potassium niobate single crystals", Proc. SPIE 2115, Visible and UV Lasers, (1 June 1994); doi: 10.1117/12.172743; https://doi.org/10.1117/12.172743

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