Laser Beam Attenuators

  • Update:Apr 19, 2020
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Watt Pilot is a laser beam intensity attenuator. Enhanced version contains a rotating quartz λ/2 phase waveplate and one or two thin film plate polarizers for parallel s-polarized and p-polarizer beam separation, meanwhile Standard version attenuator

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Watt Pilot Motorized Attenuators

Description

Watt Pilot is a laser beam intensity attenuator. Enhanced version contains a rotating quartz λ/2 phase waveplate and one or two thin film plate polarizers for parallel s-polarized and p-polarizer beam separation, meanwhile Standard version attenuator contains a single polarizing cube beam splitter for orthogonal s-polarized and p-polarized beams separation. The intensity ratio of two separated beams is continuously tuned by rotating the waveplate. Despite the stand-alone look, Watt Pilot motorized attenuator is a compact, rigid and precise device and it can be easily integrated into custom optical systems.

Features

Standard version

Standard specifications

Clear aperture

10 mm

Bandwidth

Up to ±10 nm

Configuration

λ/2 ZO Waveplate + High Energy Polarizing Cube

Attenuation range (Tmin-Tmax) @ CWL

Up to 0.5-95%

Typical applications

Medium and high power CW and pulsed lasers, LDs

Damage threshold

>20 J/cm² @ 1064 nm, 10 ns, 10 Hz

Dimensions (H x L x W)

63 x 78 x 91 mm

Time between min and max attenuation

<3 sec

Steps between min and max attenuation

3900

Typical items

Wave-length, nm

Bandwidth, nm

Configuration

Optimization

Attenuation range (Tmin-Tmax) @ CWL

Product ID

355

±10

λ/2 ZO waveplate + High Energy PBS cube

Transmission/

Reflection

0.5-95%

SWP-HP-0355

532

±10

λ/2 ZO waveplate + High Energy PBS cube

Transmission/

Reflection

0.5-95%

SWP-HP-0532

1064

±10

λ/2 ZO waveplate + High Energy PBS cube

Transmission/

Reflection

0.5-95%

SWP-HP-1064

Enhanced version

Standard specifications

Clear aperture

15mm

Bandwidth

Up to ±10nm (20>10)

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

Dimensions (H x L x W)

63 x 108 x 91mm - reflection mode

63 x 106 x 91mm - transmission mode

Time between min and max attenuation

<3 sec

Steps between min and max attenuation

3900

*Attenuation range for transmission type

Tmax (when open): >95%; Tmin (when closed): <0.5% (P-pol output)

*Attenuation range for reflection type

Tmax (when open): >95%; Tmin (when closed): <0.5% (P-pol output)

Tmax (when open): >99%; Tmin (when closed): <0.3% (S-pol output)

Typical items

Wave-length, nm

Bandwidth, nm

Configuration

Optimization

Attenuation range* (Tmin-Tmax) @ CWL

Product ID

266

±5

λ/2 ZO waveplate + 2x TFP

Reflection

0.3-99%

EWP-R-0266

343

±5

λ/2 ZO waveplate + 2x TFP

Reflection

0.3-99%

EWP-R-0343

355

±5

λ/2 ZO waveplate + 2x TFP

Reflection

0.3-99%

EWP-R-0355

515

±5

λ/2 ZO waveplate + 2x TFP

Reflection

0.3-99%

EWP-R-0515

532

±5

λ/2 ZO waveplate + 2x TFP

Reflection

0.3-99%

EWP-R-0532

1030

±10

λ/2 ZO waveplate + 2x Broadband TFP

Broadband Reflection

0.3-99%

EWP-R-1030

1064

±5

λ/2 ZO waveplate + 2x TFP

Reflection

0.3-99%

EWP-R-1064

266

±5

λ/2 ZO waveplate + TFP

Transmission

0.5-95%

EWP-T-0266

343

±5

λ/2 ZO waveplate + TFP

Transmission

0.5-95%

EWP-T-0343

355

±5

λ/2 ZO waveplate + TFP

Transmission

0.5-95%

EWP-T-0355

515

±5

λ/2 ZO waveplate + TFP

Transmission

0.5-95%

EWP-T-0515

532

±5

λ/2 ZO waveplate + TFP

Transmission

0.5-95%

EWP-T-0532

1030

±10

λ/2 ZO waveplate + Broadband TFP

Broadband Transmission

0.5-95%

EWP-T-1030

1064

±5

λ/2 ZO waveplate + TFP

Transmission

0.5-95%

EWP-T-1064

Example of performance provided by attenuator comprising a waveplate and a polarizer.

PowerXP – Motorized Attenuators

Description

We offer two types of laser beam intensity attenuator for high energy applications - Compact (CA 8 mm) and Maxi (CA 15 mm) version. With an upgraded belt drive and electronics for quick and precise power control, PowerXP motorized attenuators are reliable solution for industrial applications. Attenuators contain a motorized rotating quartz λ/2 phase waveplate and one or two thin film polarizers are used to separate the input beam into s-polarized and p-polarized parallel output beams. 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. Small footprint and high energy compatible optics of Compact version makes it a goto solution for power control and beam-splitting in demanding laser processing applications.

Features

Compact version

Standard specifications

Clear aperture

8mm

Bandwidth

Up to ±5 nm

Optimization

Transmission type

Configuration

λ/2 High Energy Waveplate + IBS coated High Contrast Thin Film Polarizer

Attenuation range (Tmin-Tmax) @ CWL

Up to 0.1-99%

Typical applications

High power CW and pulsed lasers

Damage threshold

>10J/cm² @ 1064nm, 10ns, 10Hz

Dimensions (H x L x W)

74 x 32 x 66 mm

Time between min and max attenuation

<1sec

Steps between min and max attenuation

10800

Typical items:

Wave-length, nm

Bandwidth, nm

Configuration

Optimization

Attenuation range (Tmin-Tmax) @ CWL

Product ID

343

±5

λ/2 High Energy waveplate + High Contrast TFP

Transmission

0.3-97%

PXP-08-0343

355

±5

λ/2 High Energy waveplate + High Contrast TFP

Transmission

0.3-97%

PXP-08-0355

515

±5

λ/2 High Energy waveplate + High Contrast TFP

Transmission

0.1-99%

PXP-08-0515

532

±5

λ/2 High Energy waveplate + High Contrast TFP

Transmission

0.1-99%

PXP-08-0532

1030

±5

λ/2 High Energy waveplate + High Contrast TFP

Transmission

0.2-99%

PXP-08-1030

1064

±5

λ/2 High Energy waveplate + High Contrast TFP

Transmission

0.2-99%

PXP-08-1064

Maxi version

Standard specifications

Clear aperture

15mm

Bandwidth

Up to ±10nm

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

Damage threshold

 >5 J/cm² @ 1064nm, 10ns, 10Hz

Dimensions (H x L x W)

56 x 99 x 90 mm

Time between min and max attenuation

<0.2sec

Steps between min and max attenuation

24000

*Attenuation range for transmission type

Tmax (when open): >95%; Tmin (when closed): <0.5% (P-pol output)

*Attenuation range for reflection type

Tmax (when open): >95%; Tmin (when closed): <0.5% (P-pol output)

Tmax (when open): >99%; Tmin (when closed): <0.3% (S-pol output)

Typical items

Wave-length, nm

Bandwidth, nm

Configuration

Optimization

Attenuation range* (Tmin-Tmax) @ CWL

Product ID

266

±5

λ/2 ZO waveplate + 2x TFP

Reflection

0.3-99%

PXP-15-R-0266

343

±5

λ/2 ZO waveplate + 2x TFP

Reflection

0.3-99%

PXP-15-R-0343

355

±5

λ/2 ZO waveplate + 2x TFP

Reflection

0.3-99%

PXP-15-R-0355

515

±5

λ/2 ZO waveplate + 2x TFP

Reflection

0.3-99%

PXP-15-R-0515

532

±5

λ/2 ZO waveplate + 2x TFP

Reflection

0.3-99%

PXP-15-R-0532

1030

±10

λ/2 ZO waveplate + 2x Broadband TFP

Broadband Reflection

0.3-99%

PXP-15-R-1030

1064

±5

λ/2 ZO waveplate + 2x TFP

Reflection

0.3-99%

PXP-15-R-1064

266

±5

λ/2 ZO waveplate + TFP

Transmission

0.5-95%

PXP-15-T-0266

343

±5

λ/2 ZO waveplate + TFP

Transmission

0.5-95%

PXP-15-T-0343

355

±5

λ/2 ZO waveplate + TFP

Transmission

0.5-95%

PXP-15-T-0355

515

±5

λ/2 ZO waveplate + TFP

Transmission

0.5-95%

PXP-15-T-0515

532

±5

λ/2 ZO waveplate + TFP

Transmission

0.5-95%

PXP-15-T-0532

1030

±10

λ/2 ZO waveplate + Broadband TFP

Broadband Transmission

0.5-95%

PXP-15-T-1030

1064

±5

λ/2 ZO waveplate + TFP

Transmission

0.5-95%

PXP-15-T-1064

CO2 Laser Beam Attenuators

We supply CO2 compact Manual Attenuators that allow you to vary laser output power.

Our Manual Attenuators allow the user to externally vary the power delivered from the laser. Many lasers only vary their output power by pulsing full power on and off, and this does not always provide the fine levels of control needed for some materials. This device will give infinitely variable control of the transmitted beam from approximately 6% to 100%. Using ‘enhanced’ coated Brewster plates the transmittance range can be changed from 0.04% to 98%.

When used with a laser of up to 100W the CO2 compact Manual Attenuator can left be air-cooled. When used above 100W then the optional water-cooled jacket should also be fitted.

Features:

Table 1: Manual Attenuator specifications

Part Number Height Length Clear Aperture
STC-MA 55mm 120mm 19mm

Table 2: specifications

Laser Power Clear Aperture
Up to 500W 14.5mm to 22mm
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