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1 May 2001 Efficient frequency doubling in lithium niobate waveguides by reverse proton exchange
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Abstract
We numerically investigate efficient frequency doubling of near infrared light in a coupled system of buried and surface waveguides obtained by Reverse Proton Exchange in z-cut Lithium Niobate. For a monomode TE surface guide at 1.32 micrometer and a highly multimode TM (buried) guide at 666 nm and exploiting the d31 nonlinear tensor element, for planar structures we calculated conversion efficiencies as high as 14% micrometer/W cm, with a weak dependence on temperature. Noticeably, this geometry features the physical separation of the harmonics at the output.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Annarita Di Lallo, Claudio Conti, Alfonso C. Cino, and Gaetano Assanto "Efficient frequency doubling in lithium niobate waveguides by reverse proton exchange", Proc. SPIE 4268, Growth, Fabrication, Devices, and Applications of Laser and Nonlinear Materials, (1 May 2001); https://doi.org/10.1117/12.424636
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