Birefringent wedge

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Birefringent Wedges

Product Description:

A birefringent wedge divides a light beam into two orthogonally polarized beams. The polarization with the larger refractive index is deviated by a larger angle. Figure 1 shows an YVO4 birefringent wedge splitting a light beam into two orthogonally polarized beams with polarization parallel with optical axis by a larger angle.

Birefringent wedges are widely used in fiber optics such as isolators, circulator as well as other applications. Precision Micro-Optics offers superior quality YVO4 and LiNbO3 Birefringent wedges.

You may refer to this page (http://www.pmoptics.com/crystals.html) for material properties.

Specifications :

Material

YVO4 or LiNbO3

Optical Axis Orientation Tolerance

± 0.2°

Dimensional Tolerance

± 0.05mm

Wedge Angle Tolerance

± 0.2°

Flatness

λ/8 @ 632.8nm

Surface Quality

20~10

Clear Aperture

> 90%

AR Coating

Specified by customer

Ordering Information:

P

C

B

W

X

A

B

C

D

E

F

A	Wavelength	1550 = 1550nm
		0980 = 980nm
		XXXX = Your Application Wavelength
B	Material	1 = YVO4
		2 = LiNbO3
		0 = Special
C	Dimensions	01 = 0.5X1.4X1.4X5X22.5
		Check Standard Size Table Below
		00 = Custom Dimensions
D	Optical Axis Angle (β)	1 = 0°
		2 = 22.5°
		3 = 45°
		4 = 90°
		0 = Special
E	AR Coating	1 = Yes
E	AR Coating	0 = No
F	Mount	1 = Yes
F	Mount	0 = No

Standard Size Table:

Dimensions P/N	Crystal	L (mm)	W (mm)	H (mm)	α (°)	β (°)
01	YVO4	0.5	1.4	1.4	5	22.5
02	YVO4	0.5	1.4	1.4	8	22.5
03	LiNbO3	0.25	1.25	1.25	13	22.5
04	LiNbO3	0.25	1.25	1.25	15	22.5