Product Features:
Polarizer
Beam Displacer
Glan Laser Polarizer
Glan Taylor Polarizer
Business Terms:
Port: China
Minimum Order Quantity: 1 Piece/Pieces
Supply Ability: 1000 Piece/Pieces per Month
Payment Terms: L/C,D/P,T/T
Contact Supplier
Polarizer
Beam Displacer
Glan Laser Polarizer
Glan Taylor Polarizer
Port: China
Minimum Order Quantity: 1 Piece/Pieces
Supply Ability: 1000 Piece/Pieces per Month
Payment Terms: L/C,D/P,T/T
Contact Supplier
Packaging Detail: blastic box
Delivery Detail: 25 days
Beam Displacer
Base on the birefringence performance of YVO4, a Beam Displacer can divides a beam into o-ray and e-ray. When a natural beam transmits a birefringent crystal, the beam divides into two rays. One ray transmits crystal straight, named ordinary ray (O-ray); the other one transmits crystal but change its direction, named extraordinary ray (E-ray). The angle between O-ray and e-ray is called Walk Off angle a, it given by:
α = tg-1( no2/ne2*tgΘ)-Θ
Θ is the angle between light beam and optical axis.
Specifications:
| Dimension Tolerance | ± 0.05 mm |
| Optical Axis Orientation | ± 0.5° |
| Parallelism | < 15 arc sec |
| Perpendicularity | < 10 arc min |
| Flatness | l/4 @ 633nm |
| Surface Quality | 10-5 S/D |
| AR coating | R< 0.25%@ 1550±40nm or other wavelegth |
The standard size of our Beam Displacers are listed as follows:
| Part No. | Material | Size | d | Θ | φ | Coating |
| BDP6507 | YVO4 | 26x26x7.0mm | 0.70 mm | 45° | 0° | AR/AR@1550+40nm |
| BDP6510 | YVO4 | 26x26x10mm | 1.00 mm | 45° | 0° | AR/AR@1550+40nm |
| BDP6512 | YVO4 | 26x26x12mm | 1.20 mm | 45° | 0° | AR/AR@1550+40nm |
| BDP6515 | YVO4 | 26x26x15mm | 1.50 mm | 45° | 0° | AR/AR@1550+40nm |
(d is the distance between o-ray and e-ray)
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