YVO4

The yttrium orthvanadate (YVO4) is a positive uniaxial crystal grown with Czochralski method. The yttrium orthvanadate (YVO4) is a positive uniaxial crystal grown with Czochralski method. It has good temperature stability and physical and mechanical properties, wide transparency and large birefringence, so it is also ideal for optical components such as fiber optical isolators and circulators, beam displaces and other polarizing optics, etc. Sellmeier Equation (l in mm): no2=3.77834 + 0.069736/(l2 - 0.04724) - 0.0108133l2 ne2=4.59905 + 0.110534/(l2 - 0.04813) - 0.0122676l2 

		0.6341 mm	1.30 mm	1.55 mm
Refractive Indices:	no	1. 9929	1.950	1.9447
	ne	2.2154	2.1554	2.1486
Birefringence (Dn = ne - no)		0.2225,	0.2054	0.2039
Walk-off Angle at 45º (r)		6.04º at	5.72º	5.69º

 Applications of YVO4 Crystals:Fiber Optic Isolator (YVO4 Wedges)Beam Displacers,CirculatorsInterleaverSpecifications:

Dimension tolerance	(W ± 0.1 mm) x (H ± 0.1 mm) xL( 0.05mm)
Wavefront distortion:	l/8 @ 633 nm
Clear aperture:	> 90% central area
Flatness:	l/8 @ 633 nm
Scratch/Dig code:	10/5 to MIL-O-13830A
Parallelism:	better than 10 arc seconds
Perpendicularity:	5 arc minutes
Angle tolerance:	Dq < ±0.5°, Df < ± 0.5°
AR coating:	R< 0.2% at 1550nm
Wedge Angle tolerance:	0.1°(wedges)