Date: 24th June 2016
YVO4 Birefringent Crystals
DescriptionYttrium Vanadate(YVO4)is a positive uniaxial crystal grown with Czochralski method. It has good temperature stability and physical and mechanical properties. It is ideal for optical polarizing components because of its wide transparency range and large birefringence. It is an excellent synthetic substitute for Calcite (CaCO3) and Rutile (TiO2) crystals in many applications including fiber optic isolators and circulators,Website:http://www.meta-laser.com, interleavers, beam displacers and other polarizing optics.SpecificationParameters of materialsMaterialsYVO4?transmission regionHigh transmittance from 0.4 to 5 ?mOptical Axis Orientation+/-0.5?AR-coatingR<0.2% @1550 or 1310nmPolishingSpecification?for Laser Grade?Orientation Tolerence< 0.5?Thickness/Diameter Tolerance?0.1 mmSurface Flatness/8@632nmWavefront Distortion/4@632nmSurface Quality10/5Parallel30?Perpendicular15?Clear Aperture>90%Chammfer<0.2?45?Standard productsMaterialAperture dimensions,mmlength,mmOrientation ?/?,degCoatingsProduct IDPriceYVO42.6x2.6745/0R<0.2% @1550 or 1310nm??10??12??15??745/45??10??12??15??Key ParameterFollowing drawings are the simple demonstrations of how the YVO4 crystals are used in Fiber Optic Isolator, Beam Displacers and Circulators.YVO4?Beam Displacer SpecificationsDimension Tolerance: ? 0.05 x ? 0.05 x +0.0/-0.1mmOptical Axis Orientation:? 0.5?Parallelism: <15 arc secPerpendicularity: <10 arc minFlatness:?l?/4 @ 632.8 nmSurface Quality: 10/5AR-coating: R<0.25% @ 1550 nm ? 40 nm
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