Variable Attenuator for Femtosecond and Nd:YAG Laser Pulses 990-0073
• Divides laser beam into two beams of manually adjustable intensity ratio separated by 68° angle • Large dynamic range • Transmitted beam shift ~1.4 mm • High optical damage threshold This variable… Read more →
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| SKU | Wavelength · Laser damage threshold · Group · Laser Damage Threshold · Wavelength, nm | |
|---|---|---|
| 990-0073-1030 | 1030 nm·> 10 mJ/cm², 50 fs pulse, 800 nm |
Out of stock
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| 990-0073-1030B | 1010-1050 nm·> 10 mJ/cm², 50 fs pulse, 800 nm |
Out of stock
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| 990-0073-1030H | 1030 nm·> 100 mJ/cm², 50 fs pulse, 800 nm |
Out of stock
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| 990-0073-1030HB | 1010-1050 nm·> 100 mJ/cm², 50 fs pulse, 800 nm |
Out of stock
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| 990-0073-1064 | For Nd:YAG Laser Applications·1064 |
Out of stock
$1,783
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| 990-0073-266 | 266 nm·> 10 mJ/cm², 50 fs pulse, 800 nm |
Out of stock
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| 990-0073-266H | 266 nm·> 100 mJ/cm², 50 fs pulse, 800 nm |
Out of stock
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| 990-0073-343 | 343 nm·> 10 mJ/cm², 50 fs pulse, 800 nm |
Out of stock
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| 990-0073-343H | 343 nm·> 100 mJ/cm², 50 fs pulse, 800 nm |
Out of stock
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| 990-0073-355 | 355 nm·5 J/cm², 10 ns pulses, 10 Hz, 1064 nm |
Out of stock
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| 990-0073-400 | 400 nm·> 10 mJ/cm², 50 fs pulse, 800 nm |
Out of stock
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| 990-0073-400H | 400 nm·> 100 mJ/cm², 50 fs pulse, 800 nm |
Out of stock
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| 990-0073-515 | 515 nm·> 10 mJ/cm², 50 fs pulse, 800 nm |
Out of stock
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| 990-0073-515H | 515 nm·> 100 mJ/cm², 50 fs pulse, 800 nm |
Out of stock
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| 990-0073-532 | 532 nm·5 J/cm², 10 ns pulses, 10 Hz, 1064 nm |
Out of stock
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| 990-0073-800 | 800 nm·For Femtosecond Laser Pulses·> 10 mJ/cm², 50 fs pulse, 800 nm |
Out of stock
$1,835
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| 990-0073-800B | 780-820 nm·For Femtosecond Laser Pulses·> 10 mJ/cm², 50 fs pulse, 800 nm |
Out of stock
$2,100
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| 990-0073-800H | 800 nm·For High Power Femtosecond Applications·> 100 mJ/cm², 50 fs pulse, 800 nm |
Out of stock
$1,950
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| 990-0073-800HB | 780-820 nm·For High Power Femtosecond Applications·> 100 mJ/cm², 50 fs pulse, 800 nm |
1 in stock
Ships in: 2–5 calendar days
$2,215
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Specifications
| Clear aperture diameter | 36 mm |
| Damage threshold | |
| For Nd:YAG applications | >5 J / cm², 10 ns at, 10 Hz 1064 nm, typical |
| For femtosecond applications | >10 mJ / cm², 50 fs at 800 nm, typical |
| For high power applications | >100 mJ / cm², 50 fs at 800 nm, typical |
| Polarization contrast | >1:200 |
| Transmitted beam shift | ~1.4 mm |
| Weight | 0.6 kg |
Description
- Divides laser beam into two beams of manually adjustable intensity ratio separated by 68° angle
- Large dynamic range
- Transmitted beam shift ~1.4 mm
- High optical damage threshold
This variable attenuator/beamsplitter consists of UV FS Thin Film Brewster Type Polarizer diameter 76.2 mm, which reflect s-polarized light while transmitting p-polarized light, that is housed into Beamsplitter Mount 840-0056-13 and a quartz Zero Order (optically contacted) Half Waveplate diameter 40 mm (for femtosecond pulses), Zero Order Air-Spaced Half Waveplate (for high power applications) or Multi Order Half waveplate (for Nd:YAG laser pulses) is housed in rotating Polarizer Holder 840-0180-A2, placed in the incident linearly polarized laser beam.
The intensity ratio of those two separated and different polarized beams may be continuously varied without alteration of other beam parameters by rotating the waveplate. The intensity of either exit beam, or their intensity ratio, can be controlled over a wide dynamic range. P-polarization could be selected for maximum transmission, or high-purity s-polarization could be reflected when maximum attenuation of the transmitted beam takes place.
840-0056-13 Kinematic Mount allows to adjust angle of incidence (AOI) of the thin film Brewster type polarizers by ±4.5° and to get the maximum extinction contrast. The mounts are on one base plate.
The optical axis height is 58.5 mm from the table top.
