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Compact Motorized Laser Power Attenuator

Compact Motorized Laser Power Attenuator

Compact motorized device for laser power control of linearly polarized beam. Attenuator features unique mechanical design which ensures repeatability and high stability of performance. All internal optical components have high LIDT coatings (>10 J/cm2).

from 17 $
delivery Estimated delivery time: 6 - 7 days
Qty discount: 5-9 pcs. of the same item - 5% OFF! 10+ pcs. 10% OFF!
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Specifications
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Description
Compact Motorized Attenuators
Code Description Price Delivery Add to cart
990-0075-1064M for operation at 1064 nm, LIDT 10 J/cm², 10 ns, 50 Hz @ 1064 nm 1408 $ 6 - 7 days
990-0075-1030M for operation at 1020-1040 nm, LIDT 10 J/cm², 10 ns, 50 Hz @ 1030 nm 1408 $ 6 - 7 days
990-0075-800M for operation at 780-820 nm, LIDT 8 J/cm², 10 ns, 50 Hz @ 800 nm 1408 $ 3 - 4 weeks
990-0075-532M for operation at 532 nm, LIDT 5 J/cm², 10 ns, 50 Hz @ 532 nm 1408 $ 6 - 7 days
990-0075-515M for operation at 510-520 nm, LIDT 5 J/cm², 10 ns, 50 Hz @ 515 nm 1408 $ 6 - 7 days
990-0075-400M for operation at 390-410 nm, LIDT 3 J/cm², 10 ns, 50 Hz @ 400 nm 1529 $ 3 - 4 weeks
990-0075-355M for operation at 355 nm, LIDT 3 J/cm², 10 ns, 50 Hz @ 355 nm 1529 $ 6 - 7 days
990-0075-343M for operation at 343 nm, LIDT 3 J/cm², 10 ns, 50 Hz @ 343 nm 1529 $ 6 - 7 days
990-0075-266M for operation at 266 nm, LIDT 2 J/cm², 10 ns, 50 Hz @ 266 nm 1562 $ 3 - 4 weeks
990-0075-257M for operation at 257 nm, LIDT 2 J/cm², 10 ns, 50 Hz @ 257 nm 1562 $ 3 - 4 weeks
Accessories
Code Description Price Delivery Add to cart
990-0075ABD Attachable Beam Dump <6W with coated protective window 182 $ 6 - 7 days
990-0075SBD Separated Beam Dump <15W 193 $ 6 - 7 days
990-0075C1 RS232 Cable, 1.8 m 17 $ 6 - 7 days
990-0075C5 RS232 Cable, 5 m 22 $ 6 - 7 days
990-0075C10 RS232 Cable, 10 m 33 $ 6 - 7 days
990-0075C15 RS232 Cable, 15 m 39 $ 6 - 7 days
990-0075RA DIN35 Rail Adapter 17 $ 6 - 7 days

 OPTICAL SPECIFICATIONS

Clear input aperture ø18 mm
Clear output aperture ø18 mm
Power attenuation range <0.1 % to >98 %
LIDT coating >10 J/cm2, 10 ns @ 1064 nm
Close to open time < 0.2 sec
Resolution 175,542 µsteps in full rotation (0.002 deg, 7.2 arcsec, 0.035 mrad)
Accuracy
(repeatability after 10,000 positions without homing)
±10 µsteps
(±0.02 deg, less than ±0.035 %)
Motor 2 phase stepper motor, 200 steps with 256 µstepping

 

 MECHANICAL SPECIFICATIONS

  Attenuator Attenuator with beam dump Controller
Length 76 mm 76 mm 125 mm
Width 36 mm 52 mm 53 mm
Height 58 mm 58 mm 31 mm

 

OPERATING CONDITIONS

Operating temperature 10 °C to 40 °C
Storage temperature -15 °C to 50 °C
990-0075 Compact Motorized Laser Power Attenuator
103.34 kB
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User Manual
6.68 MB
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3D files - STEP
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990-0075 series laser power attenuator is a compact motorized device for laser power control of linearly polarized beam. Its operation principle consists of changing laser beam polarization by rotation of zero-order half-waveplate and then passing the beam through a fixed Brewster type thin film polarizer which transmits p-polarized and reflects s-polarized laser beam. The intensity ratio of s- and p- polarized beams can be continuously varied without alteration of other beam parameters by motorized rotation of the waveplate. The attenuation level is controlled by the software in 0.1 - 97% range.

The device combines unique mechanical design which ensures repeatability and high stability of performance. All optical components of the attenuator have high LIDT coatings (>10 J/cm2 at 10 ns, 1064 nm) and provide stable and reliable performance even using device with high power lasers in industrial applications.

Standard compact motorized attenuators are designed for operation at the most common laser wavelengths: 1064 nm, 1020-1040 nm, 780-820 nm, 532 nm, 510-520 nm, 390-410 nm, 355 nm and 343 nm. Custom attenuators can be designed for other laser wavelengths. 

A secondary laser beam with s-polarization can be rejected from the laser power attenuator unit to an external beam dump or utilized for the particular application. A standard compact external beam dump is optionally offered with this attenuator and is suitable for lasers with average power up to 6 W. This beam dump stops secondary s-polarized beam in the attenuator and allows to avoid any thermal effects or stress in the housing of the device.

Standard kit includes:

  • Motorized laser power attenuator
  • Controller
  • Software
  • Power suppy (DC 12 V)
  • USB cable (1.5 m)

Available additional accessories:

  • Attachable beam dump <6 W with protected coated window
  • Separated beam dump <30 W
  • RS232 cables: 1.8 m, 5 m, 10 m, 15 m
  • DIN 35 rail adapter