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Yttrium alumate (YVO4) is an excellent birefringent crystal material, which is a negative uniaxial crystal. The crystal has good physical and mechanical properties, wide light transmission range, high transmittance, large birefringence coefficient and easy processing. YVO4 crystal can replace ice SPAR and crystal red stone in the field of optical fiber communication, is the key material in optical communication passive devices such as optical isolators, circulators, polarization splitters, polarizers.
Caicite Crystal is a kind of natural birefringent material, in the shape of diamond, birefringence coefficient is large, through the spectrum is wide, from visible to near infrared has relatively good optical properties. Although the mechanical strength of Iceland SPAR material is soft and easy to scratch, it still does not affect its wide application in polarization devices. Caicite is mainly used in Glan POLARIZER.
LiNbO3 is widely used in optical fiber communication as a birefringent crystal. The crystal has good physical and mechanical properties, wide light transmission range, high transmittance, easy processing, and lower material cost than other materials. Lithium niobate crystals are widely used in passive optical communication devices such as optical isolators, circulators, polarization splitters, polarizers, etc
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Email:martini@yike-optics.com
Crystal Polarization
Glan Taylor Polarizercontain a variety of materials, including Calcite crystals, A-BBO crystals, YVO4 crystals, . Glan Taylor Polarizer are compact and shorter in length than Glan Laser Polarizer, making them suitable for high polarization applications at low to medium power. It can make the input unpolarized beam into a pure polarized light, and is often used as a bias or bias detector for optical path systems.
We offer a wide range of materials including Calcite crystals, A-BBO crystals, YVO4 crystals .The Glan Laser Polarizer is a Glan Polarizer specially used in high energy lasers with two escape Windows on the side. The prism has a very high laser damage threshold, and the extinction ratio is also higher than the ordinary Glantler prism. After the beam passes through the prism, it transmits pure P-polarized light, and the side escape window emits pure S-polarized light and a small part of P-polarized light, which can be used for occasions where both polarizations are needed or for the combination of two polarized light.
The Glan-Thompson prism is made of two crystals bonded together. It has a very large field of view while maintaining a high extinction ratio. Its wavelength range is wide; the a-BBO material Glan-Thompson prism operates in the 200-900nm range, and the Calcite material Glan-Thompson prism operates in the 350-2300nm range. It is an ideal wide-band, large-field-of-view polarizing device, often used as a polarizer in spectral analysis systems.
We can provide Wollaston prisms in a variety of materials, including Calcite crystals, A-BBO crystals, quartz crystals, YVO4 crystals, etc. Wollaston prism is made of two crystals bonded or photoadhesive, which can change the incident unpolarized light into two orthogonal polarized light beams. It can work in a wide band range, and the field of view is relatively large. Unlike other polarizers, both of Wollaston's output beams are highly polarized, with extinction ratios greater than 10,000:1 or 100,000:1. The beam separation Angle can be customized according to customer requirements, and the beam splitting output can be achieved at any Angle from 0 to 25°. The material of the prism can be selected according to the size of the beam splitting Angle and the band used.
We can provide Rochon prisms made of various materials, including MgF2 crystals, a-BBO crystals, quartz crystals, YVO4 crystals, etc. Rochon prisms are made by cementing or optically bonding two crystals, which can transform incident unpolarized light into two orthogonally polarized beams, one of which propagates along the incident direction and the other deviates from the output. They can operate over a wide wavelength range and also have a relatively large field of view. Unlike other polarizers, the two beams output by Rochon prisms have very high polarization purity, with an Extinction Ratio greater than 10000:1 or greater than 100000:1. Rochon prisms are often used in spectral analysis systems, such as ellipsometers, spectrometers, etc.
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