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P/N:PH00052 Stackable prism front Surface beam sampler

Updated:2025-03-13

Brand: Ophir
Brand:PFSA
Description: 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
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Product Details

Overview of a Stackable prism front surface beam sampler：

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.

Specifications for Stackable prism front surface beam sampler:

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