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Polarizing beam splitter (PBS)
Polarizing beam splitter (PBS)
KYOCERA SOC Corporation offers optically-contacted polarizing beam splitter which simultaneously realizes high extinction ratio and high laser damage threshold. Our excellent laser resistant coating and unique contacting technology make it possible to achieve the highest damage threshold in the industry peer. Standard products are available for the wavelengths of 193nm(ArF), 248nm(KrF), 266nm(FHG), 355nm(THG), 532nm(SHG) and 1064nm. PBS for the large bandwidth Ti:Sapphire, PBS for the four wavelengths (266nm, 355nm, 532nm, 1064nm) are also available.
Key features
- High laser resistivity
- Laser resistivity ＞15J/cm2 ＠1064nm,10ns
(laser resistivity 300 times higher than the glued type) - Broadband
- Bandwidth: 60nm @center wavelength of 248nm
(Ratio to plate type: 25 times higher) - Two-wavelength type polarizers are also available
- Achieved a two-wavelength type, which is difficult for the plate type
(1064/532nm, 1064/355nm, 532/266nm, …)
PBS splits a single beam into S and P polarized laser. KYOCERA SOC Corporation's PBS is made by optically-contacting two prisms without glue and is suitable for UV and high-power lasers. Applicable to various sizes (5～55 mm) and wavelengths from UV to infrared.
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Specification examples
PBS
Coated surfaces are optically contacted without glue. Application ranges from high-power laser to UV wavelength.
Product list
| Model No. | Wavelength | Dimension [mm] | Transmittance | Damage threshold (Typical) |
|---|---|---|---|---|
| PBS193-25M | 193nm | 25 ｘ 25 ｘ 25 | Tp≧85%, Ts≦0.5% | ≧300mJ／cm2 |
| PBS266-25M | 266nm | 25 ｘ 25 ｘ 25 | Tp≧95%, Ts≦0.1% | ≧1J／cm2 |
| PBS355-25M | 355nm | 25 ｘ 25 ｘ 25 | Tp≧95%, Ts≦0.1% | ≧3J／cm2 |
| PBS355-15M | 355nm | 15 x 15 x 15 | Tp≧95%, Ts≦0.1% | ≧3J／cm2 |
| PBS532-15M | 532nm | 15 x 15 x 15 | Tp≧97%, Ts≦0.1% | ≧5J／cm2 |
| PBS1064-15M | 1064nm | 15 x 15 x 15 | Tp≧97%, Ts≦0.1% | ≧10J／cm2 |
Common spec.
| Material | Synthetic silica |
| Surface defect | 40-20(MIL-PRF-13830B) |
| Transmitted wavefront distortion | λ/10(λ=633nm) |
| Parallelism | < 5arcmin |
| Effective diameter | center 80% |
| Angle tolerance | 0±2deg |
| Antireflection coating | R≦0.3%/surface |
| Dimension tolerance | +0.3/-0.3 |
