DocumentCode
1171569
Title
Polarization-independent LiTaO3 guided-wave electrooptic switches
Author
Yoon, D.W. ; Eknoyan, O. ; Taylor, Henry F.
Author_Institution
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Volume
8
Issue
2
fYear
1990
fDate
2/1/1990 12:00:00 AM
Firstpage
160
Lastpage
163
Abstract
Polarization-independent LiTaO3 optical switches that utilize the off-diagonal electrooptic coefficient r 51 are discussed. The waveguides are formed by Zn vapor diffusion. Interguide transfer efficiencies of 84 and 88% for TM and TE polarizations, respectively, have been obtained. Modulation efficiency of 99.8% for TM and 95% for TE have been demonstrated at nearly equal voltages by thermally tuning to 20°C. The relatively high voltage-length product (30-35 V-cm) attained in these initial devices at a 0.633-μm wavelength is attributed to a weak overlap between optical and electrical fields in the periodic electrode structure
Keywords
electro-optical devices; lithium compounds; optical communication equipment; optical switches; optical waveguide components; 0.633 micron; 20 degC; 84 percent; 88 percent; 95 percent; 99.8 percent; LiTaO3 optical switches; interguide transfer efficiencies; modulation efficiency; off-diagonal electrooptic coefficient; polarisation-independent guided-wave electrooptic switches; waveguides; Electrodes; Optical devices; Optical modulation; Optical polarization; Optical switches; Optical tuning; Optical waveguides; Tellurium; Voltage; Zinc;
fLanguage
English
Journal_Title
Lightwave Technology, Journal of
Publisher
ieee
ISSN
0733-8724
Type
jour
DOI
10.1109/50.47865
Filename
47865
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