Title

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

Keywords

Integrated optics; Lasers; Lithium niobate; Lithium tantalate; Nonlinear optics; Proton exchange; Rare earth; Waveguides

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.

Publication Date

1-1-1998

Publication Title

Optical Engineering

Volume

37

Issue

4

Number of Pages

1193-1202

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/1.601954

Socpus ID

0001054353 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0001054353

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