Glan–Taylor Crystal Polarizing Prism GT10-T8
Glan crystal polarizing prisms use the Glan-Taylor design: two high-grade birefringent crystals are placed back-to-back with their inclined faces facing each other. The prisms have the same optical-axis orientation, parallel to the reflecting surface and perpendicular to the propagating beam. Birefringence produces different refractive indices along and perpendicular to the optical axis. At the glass-air interface between the prisms, total internal reflection occurs: the reflected light includes all ordinary (o) light and some extraordinary (e) light, while the transmitted light is highly linearly polarized e light, suitable for applications requiring high-quality polarized beams. An air gap rather than chemical bonding between the crystals raises the damage threshold for high-power use. JCOPTIX Glan-Taylor prisms are mounted in black-anodized housings. A coating on the prism surface absorbs reflected light, making them suitable for medium-power lasers. For high-power applications, JCOPTIX offers Glan-laser prisms made from very low-scattering birefringent crystals. Contact technical support for custom substrates, coatings, or sizes. Glan-Taylor housings have standard SM1 external threads for direct installation in standard SM1 internally threaded mounts, such as MMR-1T rotation mounts. JCOPTIX's proprietary cushioning rubber washer at the base of the SM1 thread allows the prism polarization direction to align directly with a specific rotation-mount angle. Operation is simple and quick: 1. Screw the prism into the rotation mount until the SM1 thread reaches its end; lock the mount's rotating part as needed. 2. Check the angular difference between the polarization direction (white housing line) and the target scale mark (0° or 90°). 3. Apply slight force to continue turning the protruding cylindrical housing until the white polarization line aligns with the target mark. The adjustment range is approximately 60°.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Optical element material | Laser-Grade α-BBO |
| Operating Wavelength | 700-3000 nm |
| Prism Dimensions | 12.2 mm × 13.7 mm |
| Clear Aperture Dimension | Ø10.0 mm |
| Extinction Ratio | 100,000:1 |
| Acceptance angle [REF] | < ± 2° REF |
| Beam Deviation | <10 arcsec |
| Transmitted wavefront error [@633 nm] | < λ/8 |
| Structural Design | High-Damage-Threshold Air-Spaced Structure |
| Housing Diameter | Ø25.4 mm +0.0/-0.2 mm |
| Housing Thickness | 16 mm ± 0.1 mm |
| Housing thread | SM1 external thread |
| Surface quality (scratch/dig) [Exit/Entrance Face / Side Face] | 20/10 (Exit/Entrance Faces), 80/50 (Side Faces) |
Key Features
Datasheet
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Supplier Information
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