Performance and modeling of resonantly enhanced LiNbO/sub 3/ modulators for low-loss analog fiber-optic links

The performance of resonantly enhanced LiNbO/sub 3/ traveling wave optical modulators is investigated. High-frequency performance of broad band velocity matched LiNbO/sub 3/ modulators with low half-wave voltages is shown to be relatively independent of termination. A resonant enhancement technique involving external line stretching of the length of the nonactive section of the modulator is proposed and demonstrated at low-frequencies. An accurate model is developed to facilitate design of resonantly enhanced optical modulators.<
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