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OptomechanicsMotorized Attenuators

Watt Pilot – Motorized Attenuator, Enhanced Version

Watt Pilot enhanced motorized attenuator made by Altechna viewed from the front
Diagram showing laser beams passing through various optical elements including beam dump
Diagram showing laser beams passing through various optical elements at particular angles

OptomechanicsMotorized Attenuators

Watt Pilot – Motorized Attenuator, Enhanced Version

Clear aperture

18 mm

Recommended maximum input beam diameter at 1/e2

12 mm

Optimization

Reflection or transmission type

Configuration

λ/2 ZO waveplate +
1x or 2x Thin Film polarizers

Attenuation range (Tmin-Tmax) @ CWL

Up to 0.3-99%*

Typical applications

High power CW and pulsed lasers, LDs

Damage threshold

>5 J/cm² @ 1064 nm, 10 ns, 10 Hz; >10 J/cm² @ 1064 nm, 10 ns,
10 Hz on request

Dimensions (L x W x H)

108 x 91 x 63 mm – reflection mode /
105 x 91 x 63 mm – transmission mode

Time between min and max attenuation

<3 sec

Steps between min and max attenuation

3900

Resolution

<42 arcsec/step

Typical Items: Watt Pilot-E Laser Power Control Units Software v2.0.3.0 User Manual

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Typical Items for Watt Pilot - Motorized Attenuators, Enhanced Version

Wavelength, nm Configuration Optimization Attenuation range (Tmin-Tmax) @ CWL Product ID
266 λ/2 Optically bonded waveplate + 2x TFP Reflection 0.3-99% EWP-R-0266
λ/2 Optically bonded waveplate + TFP Transmission 0.5-95% EWP-T-0266
343 λ/2 Optically bonded waveplate + 2x TFP Reflection 0.3-99% EWP-R-0343
λ/2 Optically bonded waveplate + TFP Transmission 0.5-95% EWP-T-0343
355 λ/2 Optically bonded waveplate + 2x TFP Reflection 0.3-99% EWP-R-0355
λ/2 Optically bonded waveplate + TFP Transmission 0.5-95% EWP-T-0355
515 λ/2 Air-spaced waveplate + 2x TFP Reflection 0.3-99% EWP-R-0515
λ/2 Air-spaced waveplate + TFP Transmission 0.5-95% EWP-T-0515
532 λ/2 Air-spaced waveplate + 2x TFP Reflection 0.3-99% EWP-R-0532
λ/2 Air-spaced waveplate + TFP Transmission 0.5-95% EWP-T-0532
1030 λ/2 Air-spaced waveplate + 2x Broadband TFP Broadband reflection 0.3-99% EWP-R-1030
λ/2 Air-spaced waveplate + Broadband TFP Transmission 0.5-95% EWP-T-1030
1064 λ/2 Air-spaced waveplate + 2x TFP Reflection 0.3-99% EWP-R-1064
λ/2 Air-spaced waveplate + TFP Transmission 0.5-95% EWP-T-1064
Power Throughput in Transmission type
P-pol output aperture S-pol output aperture*
P-pol fully open >95% <5%
S-pol fully open <0.5% >99.5% *Beam dump
Power Throughput in Reflection type
P-pol output aperture S-pol output aperture
P-pol fully open >95% <0.3%
S-pol fully open <0.5% >99%

Watt Pilot – Motorized Attenuator, Enhanced Version

The Enhanced Watt Pilot incorporates a motor-driven rotating quartz λ/2 phase waveplate and one or two Thin Film polarizers that separate s-polarized and p-polarized beams in parallel directions. Pure p-polarization should be selected for maximum transmission and pure s-polarization for maximum attenuation. The intensity ratio of separated beams is continuously tuned by rotating the waveplate.

The Watt Pilot is essential in systems in which stable adjustments to laser power are necessary. Despite the stand-alone device look, the motorized attenuator is compact and can be easily integrated into custom optical systems.

Custom wavelengths are available upon request.

 

Features

  • Fast open-close time
  • Ideal for femtosecond and high power laser applications
  • Two parallel p-pol and s-pol output beams
  • Interchangeable optics
  • PC control software included
  • User-friendly software interface

 

Contact us and we will find a solution for your beam attenuation, power control, beam splitting needs. We can also recommend compatible optical components for your beam delivery applications.

Related products

PowerXP Compact Motorized Attenuator
Laser Beam Attenuator, Enhanced Version
Crystalline Quartz Waveplates
High Energy Waveplates
Brewster Type Thin Film Polarizers
High Contrast Brewster Type Thin Film Polarizers

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