Coupling characteristics of LiNbO3 directional couplers.
An analytic model of a Ti:LiNbO3 channel waveguide has been developed to predict conveniently the coupling coefficient of directional couplers based on near-field intensity measurements. This model is compared to experimental results at wavelengths of 0.63 and 0.81 microm and indicates an accuracy of predicting coupling coefficients within a factor of 2 without prior knowledge of the fabrication parameters.
Mueller
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University of Southern California, Center for Laser Studies, Los Angeles, California 90089-1112, USA.
Garmire
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