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The history of Glan-Taylor Polarizer dates back to 1948, when it was first described by Archard and Taylor. The material used here generally is Calcite or other birefringent material with two right angled prisms which are separated by an air gap along the long faces of the prisms. The optical axes of the calcite crystals are aligned parallel to the plane of reflection. Total internal reflection of s-polarized light at the air-gap ensures that only p-polarized light is transmitted by the device. Glan-Taylor polarizer finds applications where “cleaning” the polarization of a light source, or attenuation of polarized light source is required. This has an advantage in terms of higher extinction ratio which allows to have better polarization purity, and broadband spectral operation range.