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Original factory packaging
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(+86)010-52867771
Instrument Expert
Original factory packaging
Service Hotline：
(+86)010-52867771
Updated:2025-03-13
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Laser Beam Attenuation with Single or Dual Prism Front Surface Attenuators
The Prism Front-Surface Beam Sampler (PFSA) is a C-mount fixture housing a UV-Grade Fused Silica right angle prism, used for sampling the front surface reflection for high power/energy beam-profiling applications. Reflection at nominal incidence of 45°is polarization and wavelength dependent, with 532nm s-polarization reflected at 8.27%, and p-polarization at 0.68%.
The system is available as either a single prism (PFSA) or dual orthogonal prism (DPFSA) unit. The dual orthogonal prism configuration results in polarization independent reflection of 0.057% at 532nm. Other filters and attenuators can be attached using the C-mount female threads at the input end. The use of a right-angle prism to sample the incident beam guarantees that any scattered secondary beams do not interfere with measurement, as shown in the sketch.
| Recommended Wavelengths | 200nm to ~2.5μm |
| Interface | C-mount |
| Damage Threshold | CW> 100MW/cm2 |
| Reflection | P: 0.64-0.88% , S: 8.01-9.40% |
| Material | UV-Grade Fused Silica |
| Clear Aperture | 14mmx14mm |
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