Abstract
An out-diffused planar optical waveguide in LiNbO3 has been used to produce an efficient broad-band electro-optic phase modulator. The ratio of modulation index η and voltage is 0.13 V−1, the maximum base bandwidth with 50-Ω load is 3.2 GHz, and the modulating power per unit bandwidth for η=1 rad is 0.2 mW/MHz.
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