Non-polarizing beamsplitter (NPBS)
Made by bonding two precision, high-tolerance right-angle prisms, with a metal-dielectric coating on the hypotenuse of one prism. The coating has low polarization dependence, keeping S- and P-polarized transmission and reflection within 6% of one another. The source states that the incident polarization is therefore unchanged.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material | K9 or ZF glass |
| Dimensional Tolerance | ±0.2 mm |
| Surface Quality | 60 / 40 |
| Beam divergence | <3 minutes |
| Surface Figure [633nm] | λ/4 |
| Transmission Parameters | 45±5 % |
| Absorptance | <10 % |
| Degree of polarization | <6 % |
| Coating | NPBS coating on the cemented face; antireflection coatings on all right-angle faces |
| Standard coating wavelength [Narrowband option] | 632.8, 780, 850, 980, 1064, 1310, 1550 |
| Standard coating wavelength [Broadband option] | 450-650, 650-900, 900-1200, 1200-1550, 1500-1610 |
Datasheet
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Supplier Information
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