Title :
Electrooptic coefficient measurements in LiTaO3 and LiNbO3 waveguides
Author :
Suzuki, Tetsuro ; Eknoyan, O. ; Taylor, H.F.
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
fDate :
2/1/1993 12:00:00 AM
Abstract :
The magnitudes of linear electrooptic coefficients r13 and r33 in Zn:LiTaO3 repoled channel waveguides are reported. The measurements were made at 0.633-μm wavelength using a Fabry-Perot interferometer. The waveguides were produced by diffusion from the vapor phase at a temperature above the Curie temperature. For full recovery of the Pockels effect, an electric field of 200 V/cm is needed during repoling. The measured values of r13 and r33 at 32-MHz modulation frequency are 7.2 and 30.3 pm/V, respectively. The difference between unclamped and clamped coefficients is comparable to that from bulk crystals. Measurements were also made on Ti:LiNbO3 waveguides that did not require repoling, and good agreement with bulk crystal values was obtained
Keywords :
electro-optical devices; integrated optics; light interferometry; lithium compounds; optical constants; optical waveguides; titanium; zinc; 0.633 micron; 32 MHz; Curie temperature; Fabry-Perot interferometer; LiNbO3; LiNbO3:Ti; LiTaO3; LiTaO3:Zn; Pockels effect; clamped coefficients; electric field; linear electrooptic coefficients; modulation frequency; repoled channel waveguides; unclamped coefficients; vapor phase; Crystals; Electrooptical waveguides; Fabry-Perot interferometers; Low earth orbit satellites; Optical interferometry; Optical refraction; Optical waveguides; Protons; Temperature measurement; Wavelength measurement;
Journal_Title :
Lightwave Technology, Journal of
