Plate Polarizing Beamsplitters / PBS-C
Plate-type polarizing beamsplitters that can be used for high-power lasers and large beam diameters.
They are used in polarization attenuators for high-power lasers and optical systems with variable light intensity bifurcation ratios.
Common Specifications
| Material | BK7 Synthetic fused silica |  |
|---|---|---|
| Surface Flatness | λ/10 | |
| Extinction Ratio of Transmission | Ts:Tp＝1:200 | |
| Parallelism | ＜5″ | |
| Coating | Front surface: Dielectric multi-layer coating Rear surfaces: Uncoated |
|
| Surface Quality (Scratch-Dig) | 10 － 5 | |
| Clear Aperture | 90% of the diameter |
| Schematic | Outline Drawing |
|---|---|
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| Part Number | Wavelength Range | Diameter φD |
Maximum Diameter of Transmitted Beam | Material | Incident Angle | Transmittance of P-polarized light | Reflectance of S-polarized light | Laser Damage Threshold* |
|---|---|---|---|---|---|---|---|---|
| PBS-20C03-10-266 | 266nm | φ20mm | 10mm | Synthetic fused silica | 56.3° | ＞92％ | ＞95％ | 2J/cm2 |
| PBS-25.4C03-10-266 | 266nm | φ25.4mm | 12.7mm | Synthetic fused silica | 56.3° | ＞92％ | ＞95％ | 2J/cm2 |
| PBS-30C03-10-266 | 266nm | φ30mm | 15mm | Synthetic fused silica | 56.3° | ＞92％ | ＞95％ | 2J/cm2 |
| PBS-20C03-10-355 | 355nm | φ20mm | 10.1mm | Synthetic fused silica | 55.9° | ＞94％ | ＞95％ | 2J/cm2 |
| PBS-25.4C03-10-355 | 355nm | φ25.4mm | 13.1mm | Synthetic fused silica | 55.9° | ＞94％ | ＞95％ | 2J/cm2 |
| PBS-30C03-10-355 | 355nm | φ30mm | 15.7mm | Synthetic fused silica | 55.9° | ＞94％ | ＞95％ | 2J/cm2 |
| PBS-20C03-10-532 | 532nm | φ20mm | 9.9mm | BK7 | 56.6° | ＞95％ | ＞98％ | 5J/cm2 |
| PBS-25.4C03-10-532 | 532nm | φ25.4mm | 12.9mm | BK7 | 56.6° | ＞95％ | ＞98％ | 5J/cm2 |
| PBS-30C03-10-532 | 532nm | φ30mm | 15.4mm | BK7 | 56.6° | ＞95％ | ＞98％ | 5J/cm2 |
| PBS-20C03-10-1064 | 1064nm | φ20mm | 10mm | BK7 | 56.4° | ＞96％ | ＞98％ | 7J/cm2 |
| PBS-25.4C03-10-1064 | 1064nm | φ25.4mm | 12.9mm | BK7 | 56.4 ° | ＞96％ | ＞98％ | 7J/cm2 |
| PBS-30C03-10-1064 | 1064nm | φ30mm | 15.5mm | BK7 | 56.4° | ＞96％ | ＞98％ | 7J/cm2 |
*Incident angle 0°, Laser pulse width 10ns, repetition frequency 20Hz
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