Abstract
Potassium lithium niobate (KLN) crystals with various Li2O compositions have been grown by a resistance-heating Czochralski technique. The solid-liquids interfaces for the steady crystal growth, as well the cracking mechanisms were investigated. The optical transmittance spectrum showed that the KLN crystal with higher Li2O content presents higher transmission than that with lower Li2O content. Moreover, the second harmonic generation (SHG) signal can only be distinguished for the crystal with high Li2O concentration. The properties of doubling near infrared cw Ti:sapphire laser in the wavelength range of 820–960 nm have been demonstrated for the KLN crystal with Li2O 26 mol% and Nb2O544 mol%.
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