Yttrium Orthovanadate (Yvo4) Positive Uniaxial Laser Crystal Size: 1-150mm

The yttrium orthovanadate (YVO4) is a positive uniaxial crystal grown with Czochralski method. It has good mechanical and physical properties and is ideal for optical polarizing components because of its wide transparency range and large birefringence. Photonchina YVO4 has 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 optics, etc.

Diameter:Max 25m
Length:Max 35mm
Surface Quality:better than 20/10 scratch/dig
Beam Deviation:< 3 arc min
Optical Axis Orientation:+/-0.2deg
Flatness:< /4 @632.8nm
Wavefront Distortion:< /2 @632.8nm
Coating:Coating upon request

Applications of YVO4i
YVO4 crystal produced by Photonchina is mainly used to manufacture Birefringent Wedge of optical isolator and Beam Displacer (BD) of optical circulator and optical beam splitter.
YVO4 Wedges or Prisms are also called YVO4 Plates or Blocks.
1. YVO4 Wedge, key components of optical isolator.
Aperture1.0x 1.0mm2 to 4x4mm2
Size Tolerance+/-0.05mm
Wedge Tolerance+/-15%
Axis+/-0.5A
FlatnessI /4 @ 632.8 nm
Surface quality20-10
CoatingR<0.2% @1550 or 1310nm
Standard Size
1.25mmx1.25mmx0.5mm with 13A or 15A wedge, phi=22.5A

Notes: other specifications are available upon request


2.YVO4 BD, Beam Displacer, used in fiber circulator
SizeW(+/-0.05mm)*H(+/-0.05mm)*L(+/-0.1mm)or(+/-0.003mm)
Axis+/-0.5A
Parallelism<15 arc sec
Perpendicularity<10 arc min
FlatnessI /4 @ 632.8nm
Surface quality20/10
CoatingR<0.2% @1550 or 1310nm +/-40nm
Standard Size2.6x2.6x10mm, I,=45A ,I =0A
Max Length:35mm