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Proceedings Paper

Vapor transport equilibrated lithium niobate resistant to photorefractive damage
Author(s): Rostislav V. Roussev; Roger Route; Mordechai Katz; Dieter Jundt; Claudia Kajiyama; Martin M. Fejer
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Paper Abstract

We use a combination of vapor transport equilibration and moderate MgO doping (≤1%) to explore near-stoichiometric damage resistant lithium niobate crystals with improved properties for periodic poling and annealed-proton-exchange waveguide fabrication compared to the commercially available 5-mol% MgO-doped crystals. High damage resistance, measured by the saturated space-charge field generated in the crystal by 514 nm radiation, was obtained for all MgO doping concentrations (0.3, 0.5 and 1%) with appropriate equilibration. Green-induced infrared absorption was also measured in the 0.3-% doped crystal and was below the detection limit. Dispersion in the region 460-1550 nm was measured. Periodic poling was performed using LiCl solution electrodes. Poling quality improves with lowering MgO concentration. Waveguides for frequency doubling of 1550 nm were fabricated in the 1% doped crystal with losses as low as 0.4 dB/cm and normalized efficiency of ~10%/Wcm2.

Paper Details

Date Published: 23 March 2005
PDF: 10 pages
Proc. SPIE 5710, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications IV, (23 March 2005); doi: 10.1117/12.592604
Show Author Affiliations
Rostislav V. Roussev, Stanford Univ. (United States)
Roger Route, Stanford Univ. (United States)
Mordechai Katz, Stanford Univ. (United States)
Dieter Jundt, Crystal Technology Inc. (United States)
Claudia Kajiyama, Crystal Technology Inc. (United States)
Martin M. Fejer, Stanford Univ. (United States)

Published in SPIE Proceedings Vol. 5710:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications IV
Peter E. Powers, Editor(s)

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