CASTECH, Inc. Optical Switches

Product description:The optical switch is a high-speed switch with an electro-optical crystal or a rotatable wave plate as the core element. It is an external cavity modulator which consists of a polarizing element and a polarizer. When a voltage is applied to the electro-optic crystal, the birefringence will be induced hence altering the polarization of light. The polarizer will split the light into two beams orthogonally as transmitted light and reflected light. Thus, the laser could be turned-on and turned-off quickly with response to the change of voltage.CASTECH's optical switches can be divided into two types: mechanical optical switches and electro-optical optical switches.The mechanical optical switch changes the light on and off by controlling the rotation angle of the half-wave plate. The electro-optical optical switch is a high-speed shutter based on the electro-optical effect, and the modulation speed can reach nanosecond level. CASTECH provides drivers with nanoseconds rise/fall time to complement our optical switches. And optional accessories such as optical traps are also available.Applicatio ns:-Laser industrial processing-Beam splitting-Frequency division-Laser sensing system-Ultrafast laser system