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Ultrasound-modulated optical tomography（UOT）is an imaging technology that uses Acousto-Optic effect, also called Acousto-Optic imaging（AO） 1. Sound and Light Effect When the ultrasonic wave passes through the medium, periodic elastic deformation occurs in it, so that the refractive index of the medium changes periodically, which is equivalent to a moving phase

Fiber Optic Isolator, which is one of the most applied optical componnet in fiber amplifier, laser system, fiber optic sensor, it’s a fiber passive component which allow signal light pass the isolator and avoid the backward signal, the backward light may damage the laser seed source, pump laser, or cause