How to connect the input and output of the optical modulator
Use a "T" connector to connect the RF output port of the AO modulator driver to both the AO modulator and the oscilloscope. The oscilloscope input should be 1 MOhm input impedance (the AO Modulator is approximately 50 ohm input impedance). Applying a rf signal as modulation volta-ge to the electrodes this electrical input is translated into an amplitude informa-tion (Fig. This amplitude output depends on the voltage magnitude and shape, thus related to the position of the modulators operation point. Fiber Optic Connectors: Standardized optical fiber interfaces, such as FC, SC, or LC connectors, facilitate convenient and low-loss connections to input and output optical fibers. Within these devices incoming light Bragg di racts o acoustic wavefronts which propagate through a crystal.
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