Beam Sampler for Kilowatt-Level Lasers (BA32-1KW)
Description
BA32-1KW is a beam sampler for Kilowatt level lasers. It is an enabling technology that allows camera-based beam profiling for high power lasers. This water-cooled beam splitter is ideal for in line beam profiling in a variety of high-power applications, from military to industrial materials processing and R&D.
The BA32-1KW beam splitter measures laser beam profiles with power from mWatts to 1 kW, and can withstand power densities of up to 10 MW/cm2. This device attenuates extremely high power density beams with an attenuation ratio of 1:1900. This enables the use of very sensitive laser beam profilers to measure beam shape, focal spot and even beam waist. The BA32-1KW can also be equipped with a power meter at the second residual beam window to monitor the laser’s power simultaneously with the beam profiling.
IN-LINE POWER MEASUREMENT
A common application for beam samplers is picking off a portion of a beam in order to track changes in beam power vs time using a detector. This information may be used as part of a feedback loop to regulate power, or could simply be used to log power in order to normalize experimental results at a later time. With approximately 92% of the beam that is transmitted, a laser process can keep running while its power and beam profile are monitored.
HIGH-QUALITY OPTICS FOR UV & BROADBAND APPLICATIONS
The BA32-1KW contains two optical wedges with excellent surface quality and flatness, to provide a transmitted beam with very low wave front error. Its wedges are made of UV Grade Fused Silica, a colorless silica glass of extremely high purity, providing maximum transmission from 200 to 2100 nm. This glass combines a very low thermal expansion coefficient with good optical qualities, and excellent transmittance in the ultraviolet region. It will not fluoresce under UV light and has extremely high laser damage thresholds.
This beam sampler comes with screw-on caps for each aperture to keep the optics dust-free and clean. Accessories to mount a power detector and beam profiler are sold separately.
POLARIZATION-NEUTRAL ATTENUATION
The BA32-1KW operates by reflecting a fraction of the incoming laser beam into the camera through the front surfaces of a pair of orthogonally oriented wedges. This reflects the beam in three directions: approximately 0.05% to the beam profiler camera, 7.4% to the power meter sensor, and 92% to the working beam. The result is uniform attenuation of any beam shape, from Gaussian to flat-top and even doughnut.
BA series optical attenuators preserve the polarization: they use Fresnel reflection on two optical wedges to pick off a small percentage of the input beam. Since the wedges are oriented orthogonally, the S and P polarization states are switched when the reflected beam hits the second wedge, and the difference in reflectance between the two states cancels out. The incoming beam polarization state and irradiance are thus preserved. The wave front distortion is negligible and the laser output power stability is not affected.
Beam Sampler for Kilowatt-Level Lasers (BA32-1KW)
Specifications |
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|---|---|
| Spectral Range: | 200 - 2,100 nm |
| Mounting Thread: | SM2 |
| Equivalent Attenuation: | 1/1900 @ 1064 nm |
| Integrated Power Detector: | Compatible with UP55 series (not included) |
| Optical Wedges Material: | UV Fused Silica (uncoated) |
| Residual Beam Deviation: | 3.6° @ 1064 nm |
| Polarization Correction: | Yes (pair of orthogonal wedges) |
| Maximum Average Power Density: | 10 MW/cm² |
| Maximum Energy Density: | 10 J/cm² |
| Maximum Power: | 1000W |
| Aperture Diameter: | 32 mm |
| Dimensions: | 145H x 250W x 132D mm |
| Weight: | 5.5 kg |
Features
MANAGE THE LASER POWER
CMOS sensors have low saturation levels as well as low damage thresholds. It is therefore important that you control your laser power to get the best measurement possible and avoid damaging the measuring camera.
SAMPLE YOUR LASER BEAM
The BA series optical attenuators use Fresnel reflection on two orthogonal wedges to pick off a small fraction of the input beam. The incoming beam polarization state and irradiance are preserved.
Applications
- Laser power monitoring with simultaneous beam profiling
- Polarization insensitive beam-splitter with no back-reflections
- Optical pick-off for use with our energy or power detectors
- Attenuator for our high sensitivity detectors like M6 series and PH series
For pricing, technical or any other questions please contact the supplier
- No registration required
- No markups, no fees
- Direct contact with supplier
Contact Supplier
How to order?
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Ships from:
Canada
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Sold by:
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On FindLight:
since 2014
Frequently Asked Questions
The BA32-1KW beam sampler is used for camera-based beam profiling for high power lasers.
The BA32-1KW can measure laser beam profiles with power from mWatts to 1 kW.
The BA32-1KW has an attenuation ratio of 1:1900 for extremely high power density beams.
Yes, the BA32-1KW can be equipped with a power meter at the second residual beam window to monitor the laser's power simultaneously with the beam profiling.
The BA32-1KW contains wedges made of UV Grade Fused Silica, a colorless silica glass of extremely high purity, providing maximum transmission from 200 to 2100 nm.