DocumentCode
1480342
Title
Integrated optical device with second-harmonic generator, electrooptic lens, and electrooptic scanner in LiTaO3
Author
Chiu, Yi ; Gopalan, Venkatraman ; Kawas, M.J. ; Schlesinger, T.E. ; Stancil, Daniel D. ; Risk, W.P.
Author_Institution
Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA
Volume
17
Issue
3
fYear
1999
fDate
3/1/1999 12:00:00 AM
Firstpage
462
Lastpage
465
Abstract
This paper reports the first demonstration of an integrated optical device in z-cut LiTaO3 that contains the following three functional parts: a quasiphase-matched second-harmonic generation (SHG) grating, an electrooptic (EO) lens, and an electrooptic scanner. The SHG device consists of channel waveguides passing through periodic domain-inverted gratings. The frequency of the input infrared (IR) light at 864 nm was doubled into blue light at 432 nm. A stack of EO lenses was used to collimate the light from the channel waveguide. The measured beam size at the output facet for various applied voltages to the lenses agreed with simulation. After collimation, light passes through an EO scanner that controls the angle of the output beam. A scanning sensitivity of 17 mrad/kV was measured for the scanner, compared to the calculated value of 15 mrad/kV
Keywords
diffraction gratings; electro-optical devices; lenses; lithium compounds; optical collimators; optical harmonic generation; optical planar waveguides; optical scanners; 432 nm; 864 nm; EO scanner; LiTaO3; SHG grating; channel waveguides; electrooptic lens; electrooptic scanner; input IR light; integrated optical device; measured beam size; optical collimators; output beam; periodic domain-inverted gratings; quasiphase-matched second harmonic generation; scanning sensitivity; second-harmonic generator; z-cut LiTaO3; Electrooptic devices; Electrooptical waveguides; Frequency; Gratings; Lenses; Optical collimators; Optical devices; Optical waveguides; Size measurement; Voltage;
fLanguage
English
Journal_Title
Lightwave Technology, Journal of
Publisher
ieee
ISSN
0733-8724
Type
jour
DOI
10.1109/50.749386
Filename
749386
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