ATP-K variabler Abschwächer

  • Laserabschwächung ohne Geisterbilder oder Streifenbildung
  • Per Drehregler im Bereich zwischen ND 1,7 und 4,6 einstellbarer keilförmiger Abschwächer
  • Grayglass-Abschwächer mit ND 2,8
Description
Specifications
Ordering Info
Catalog/Manual
Download Data Sheet.
The ATP-K is also designed to be used with the HP-XXX high power attenuators and beam splitters. Both types of attenuators attach directly to the ATP-K via C-mount. The ATP-K has simple reproducible attenuation settings, and has a wavelength range of 360 to 2500+ nm.
ATP-K Specifications
Maximum Power/Energy Handling 100 mW/mm beam diameter 100 mJ total avg. energy Damage threshold: 5J
Note: Powerful laser sources may require additional attenuation prior to the beam's exposure to Model ATP-K. Additional attenuation usually is achieved by use of high-power laser mirror attenuators or clean, high-quality quartz plates (recommended with slight wedge angles).
Wavelength Range 360-2500+ nm Near flat response out to 1500nm
Attenuation Range Variable filters: ND = 1.7 to 4.6 Maximum ND 7.4 (with fixed 2.8 gray-glass attenuator)
Note: ND (optical density) = log (1/T) or T=10 (-ND) where T is the fraction of light transmitted. For example, an ND of 5 transmits 0.00001 or 0.001%.
Clear Aperture 15mm diameter
Dimensions 94 (W) x 28 (H) x 43 (D) mm
Thickness Tolerance ±0.25mm
Mounting C-mount
Base Mount ¼-20
 
Figure 1 below shows the safe average power for negligible beam distortion from thermal lensing. Absorptive filters, such as used in the ATP-K have an upper power limit of approximately 100mW per mm beam diameter. For pulsed beams, Figure 2 shows the damage threshold for energy where breakage of the glass wedge may occur. This is approximately 5J per mm beam diameter. For lasers with power or energy levels above this the first stage of attenuation will need to come from our line of high power reflective attenuators.
High Power Attenuators
Our high-power laser mirror attenuator transmits <1%, and comes in a C-Mount threaded adapter ring. It is also AR coated for either straight on or 45° orientation.
Available standard configurations:
  • HP-266 — Use for 266 ±50nm
  • HP-355 — Use for 350 ±50nm
  • HP-450 — Use for 450 ±50nm
  • HP-600 — Use for 500–700nm
  • HP-800 — Use for 700–900nm
  • HP-1064 — Use for 1000–1100nm
Other wavelengths available upon request.
Note that if more than one reflective attenuator is required to reduce the beam power, one of them must be oriented 45° to the beam. Unlike absorptive attenuators, reflectors cannot be stacked, because they will form a laser cavity.
      Item Description P/N  
     
  ATP-K Variable Attenuator Package provides smooth knob operated variable wedges with attenuation of optical density (ND) 1.7–4.6 for a total attenuation capability of ND 7.4. Specially designed to eliminate ghost reflections, fringes, and light leaks. Small compact module including C-mount adapter to attach to camera, and C-mount receptacle to easily attach additional HP-series attenuators. PH00128  
         
  HP-266 High power laser grade fused silica reflective mirror attenuator for UV applications at 266nm. Second surface antireflection coated. Transmits <1%. Useful 266 ±50nm. PH00129  
         
  HP-355 High power laser grade fused silica reflective mirror attenuator for UV applications at 355nm. Second surface anti-reflection coated. Transmits <1%. Useful 355 ±50nm. PH00130  
         
  HP-450 High power laser mirror attenuator for applications in the visible from 400-500nm. Second surface anti-reflection coated.Transmits <1%. Useful 450 ±50nm. PH00131  
         
  HP-600 High power laser mirror attenuator for applications in the visible from 500-700nm. Transmits <1%. PH00132  
         
  HP-800 High power laser mirror attenuator for applications in the visible-Near IR from 700-900nm. Transmits <1%. PH00133  
         
  HP-1064 High power laser mirror attenuator for applications in the Near IR from 1000-1100nm. Transmits <1%. PH00134  
         
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