Precision Optics

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Optical Isolator


Optical isolator is a combination of a linearly polarizing beamsplitter and a quartz quarter waveplate. Incident light is linearly polarized by the polarizer and converted to circular polarization by the quarter waveplate. If any portion of the emerging beam is reflected back into the isolator, the quarter waveplate produces a beam, which is linearly polarized perpendicular to the input beam. This beam is blocked by the linear polarizer and not returned to the input side of the system. Two types of optical isolator are offered: a monochromatic optical isolator and a broadband optical isolator. Crysor Optics offers optical isolators for the popular laser wavelengths