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Proceedings Paper

Waveguides in Ti:LiNbO3 for second-harmonic generation: design and experimental tests
Author(s): Roberta Ramponi; Vera Russo; Vittorio C. Magni; Luca Palchetti; Roberto Osellame; Margherita Zavelani-Rossi
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Paper Abstract

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.

Paper Details

Date Published: 20 December 1996
PDF: 7 pages
Proc. SPIE 2954, Fiber Integrated Optics, (20 December 1996); doi: 10.1117/12.262443
Show Author Affiliations
Roberta Ramponi, Politecnico di Milano (Italy)
Vera Russo, Politecnico di Milano (Italy)
Vittorio C. Magni, Politecnico di Milano (Italy)
Luca Palchetti, IROE/CNR (Italy)
Roberto Osellame, Politecnico di Milano (Italy)
Margherita Zavelani-Rossi, Politecnico di Milano (Italy)

Published in SPIE Proceedings Vol. 2954:
Fiber Integrated Optics
Giancarlo C. Righini, Editor(s)

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