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20 December 1996 Waveguides in Ti:LiNbO3 for second-harmonic generation: design and experimental tests
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Proceedings Volume 2954, Fiber Integrated Optics; (1996)
Event: Advanced Imaging and Network Technologies, 1996, Berlin, Germany
Second harmonic (SH) generation in optical waveguides is widely studied for its many applications. In order to obtain efficient non-linear phenomena in waveguides, it is very important that the optico-physical characteristics of the fabricated waveguides are exactly those foreseen in the project. This because in practical applications operation wavelength and temperature can rarely be adjusted to achieve phase-matching conditions. The present work describes a model that, one fixed the operation conditions, finds the optico-physical characteristics of Ti:LiNbO3 planar waveguides necessary to obtain SH generation and relates them to the fabrication parameters. Phase-matching conditions between the two interacting guided modes (fundamental and SH) are achieved by exploiting the material birefringence. The investigation is performed at a fundamental wavelength of 1.064 micrometers and at room temperature on Y-cut, X-propagation waveguides. The waveguides, fabricated according to our design, were then characterized at different wavelengths. Experimental tests of SH generation confirmed the goodness of the model proposed.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Roberta Ramponi, Vera Russo, Vittorio C. Magni, Luca Palchetti, Roberto Osellame, and Margherita Zavelani-Rossi "Waveguides in Ti:LiNbO3 for second-harmonic generation: design and experimental tests", Proc. SPIE 2954, Fiber Integrated Optics, (20 December 1996);

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