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Birefringent Filter

We manufacture Birefringent Filter in crystalline quartz to our customers. The crystal axis of our birefringent filter is parallel to the face of the plates. They are used in dye laser tuning and laser line narrowing.



Specifications:
Material Crystal quartz
Diameter Tolerance +0.00/-0.10mm
Thickness (nT)
0.50mm
Thickness Tolerance
0.02mm (Standard), up to 0.002mm
Clear Aperture >Central 90% of diameter
Surface Quality 40-20 S/D (Standard), up to 10-5 S/D

Parallelism

< 5 arc seconds (Standard), up to 1 arc second

Wavefront Distortion

/10 @632.8nm (Standard), up to /20 @632.8nm

Protective Bevel <0.2mm x 45

Coating

Uncoated


Birefringent Filter Standard Products:

Diameter(mm)

10.0

15.0

20.0

25.4

Part No.

FBF0101

FBF0201

FBF0301

FBF0401

Note: The general tolerance specifications above provide a guideline regarding manufacturing capabilities for optics ranging in size from 1-200mm. The manufacturing limits are not absolute; tighter tolerances may be possible. Part specific tolerances may vary depending on component size, shape, and/or material.

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