Articles

Proton exchanged waveguides in LiNbO3 and LiTaO3 for integrated lasers and nonlinear frequency converters

[+] Author Affiliations
Pascal Baldi, Marc P. De Micheli, Kacem El Hadi

Universite de Nice, Laboratoire de Physique de la Matie`re Condense´e, Parc Valrose, F-06108 Nice Cedex 2, France

Salim Nouh

CERS, B. P. 4470, Damascus, Syria

Alfonso C. Cino

CRES, Lab. di Optoelettronica, Via Regione Siciliana 49, I-90046 Monreale (PA), and DIES, University of Palermo, Palermo, Italy

P. Aschieri, Daniel B. Ostrowsky

Universite de Nice, Laboratoire de Physique de la Matie`re Condense´e, Parc Valrose, F-06108 Nice Cedex 2, France

Opt. Eng. 37(4), 1193-1202 (Apr 01, 1998). doi:10.1117/1.601954
History: Received Aug. 10, 1997; Revised Oct. 13, 1997; Accepted Oct. 27, 1997
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Abstract

We present a review of our research activities concerning the proton exchange technique on lithium niobate and lithium tantalate for integrated lasers and nonlinear frequency converters. In the first part we present the material characterizations that allowed us to establish the phase diagram of the proton exchanged layers on both crystals. In the second part we show how the knowledge of these phase diagrams allows us to understand and handle the problem of the reduction of the excited-state lifetime of the rare-earth ions in Nd- and Er-doped crystals. In the third part, we describe the influence of the different proton exchange processes on the nonlinearity and the domain structure of periodically poled crystals, which leads us to recommend the use of waveguides fabricated using low-acidity melts, which preserves both the nonlinear coefficient and the domain structure. © 1998 Society of Photo-Optical Instrumentation Engineers.

© 1998 Society of Photo-Optical Instrumentation Engineers

Citation

Pascal Baldi ; Marc P. De Micheli ; Kacem El Hadi ; Salim Nouh ; Alfonso C. Cino, et al.
"Proton exchanged waveguides in LiNbO3 and LiTaO3 for integrated lasers and nonlinear frequency converters", Opt. Eng. 37(4), 1193-1202 (Apr 01, 1998). ; http://dx.doi.org/10.1117/1.601954


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