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Efficient frequency doubling in reverse proton exchanged lithium niobate waveguides

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4 Author(s)
Di Lallo, A. ; Dept. of Electron. Eng., Rome Univ., Italy ; Conti, C. ; Cino, A. ; Assanto, G.

We propose a novel approach for efficient frequency doubling of near infrared light, using the coupled system of buried and surface waveguides obtainable by reverse proton exchange in z-cut lithium niobate. In such guides, supporting TM and TE polarizations, respectively, in spite of the use of the d/sub 31/ nonlinear element, we predict conversion efficiencies as high as 90 or 14% /spl mu/m/W cm in planar structures excited at 1.32 /spl mu/m.

Published in:

Photonics Technology Letters, IEEE  (Volume:13 ,  Issue: 4 )

Date of Publication:

April 2001

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