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The yttrium orthovanadate (YVO4), a kind of crystal preferably grown with Czochralski method has good mechanical and physical 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,beam displacers, Glan polarizers and other polarizing. 
◇ Fiber-Optic Isolators, YVO4 Beam Displacer, Circulators, Glan Polarizer, etc
Dimension tolerance:                           ±0.05mm
Flatness:                                                 λ/4 @633nm
Scratch/Dig                                            10/5(MIL-PRF-13830B)
Parallelism:                                            better than 20 arc sec
Perpendicularity:                                   better than 15 arc min
Orientation tolerance:                           △ <± 0.5°
Coating:                                                  AR: R<0.2%@633nm, 1310nm, 1550nm
Clear aperture:                                       >90% central area
Transmitting wavefront distortion:      less than λ/4 @633nm

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