Design methodology of annealed H+ waveguides in ferroelectric LiNbO3

• Type: Article in International Scientific Journal
• Date: 2007

Authors

Jose M M M de Almeida (Author) Other

Journal

Title: Optical Engineering

Vol. 46 No. 10

Final page: 064601

ISSN: 0091-3286

Publisher: SPIE

Indexing

ISI Web of Knowledge - 2 Citations

Scopus - 3 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-004-9XA

DOI: 10.1117/1.2744364

Abstract (EN): Relations between fabrication conditions and optical characteristics of planar waveguides made by proton exchange in benzoic acid are documented in the literature, but reports on the characterization of waveguide fabrication processes, performed in a systematic way, could not be found, resulting in the need to combine data from several authors. Discrepancies among results from different researches are evident, resulting from different experimental methodologies and calibration of equipment. Therefore, aiming at extracting a consistent data set, optical characterization of the refractive index profile was employed to study series of samples. The objective was to develop a methodology for fabrication of proton-exchanged channel waveguides in LiNbO3 operating in the single-mode regime at several wavelengths, with specific characteristics required to optimize integrated devices. To achieve this, it is necessary to obtain the relations between the optical characteristics of the waveguides and their fabrication conditions, and to introduce models of the waveguide formation process. (c) 2007 Society of Photo-Optical Instrumentation Engineers.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 13