Determination of the pockels electro-optic coefficient in ADP at 5.5 GHz
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A method is described for determining the Pockels coefficient r63 of an electro-optic crystal simply by identifying and measuring the peak r.f. power that maximises or minimises the time-average transmitted-light intensity when the crystal is used to intensity-modulate light via the longitudinal electro-optic effect. Results are given for ADP at 5.5 GHz. The effect of modulator-cavity-endplate perforations is discussed.