Advanced Laser Power Attenuators

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Advanced Laser Power Attenuators

Laserand offers motorized laser power attenuators for laser power control. Laser Power Attenuators could be produced for use in the UV, visible, and NIR spectral ranges from 250 nm to 2000 nm. These devices feature a large clear aperture dedicated for considerable beam application.

This device is combined with a unique mechanical design which ensures repeatability and high stability of performance.

Clear Aperture, mm	Ø15
Configuration	λ/2 ZO Waveplate + High contrast brewster type thin film polarizer
Laser Damage Threshold, J/cm²	>10 [J/cm²] (10 ns @ 1064 nm)
Open-close time	<200
Accuracy	±0.005 deg (±18 arcsec, 0.087 mrad, less than ±0.01%)
Resolution	175,543 μsteps in full rotation (0.002 deg, 7.2 arcsec, 0.035 mrad)
Absolute position encoder	YES
Bandwidth, nm	5 - 10
Dimensions, mm	86 x 47 x 58
Dimensions with beam dump, mm	86 x 64 x 58
Controller type	Integrated
Communication	Using ASCII commands described in manual
Software platform	LPA software
Input voltage from external power supply	DC 12 V
Control interfaces	USB, RS232
Transmission speed	Up to 115,200 bits/s (RS-232); full speed (USB 2.0)
Working Temperatures, °C	10 to 40
Mounting Thread	M6 on both sides, M4 on the bottom side
Beam Dump	Dissipation Power (avg) at room temperature <6W
Housing material	Anodized aluminum

Description

Details

Optical components of the Advanced Laser Power Attenuators are made for high LIDT applications and provide stable and reliable performance even when using them with high power lasers in industrial applications.
The secondary laser beam from the laser power attenuator unit is rejected out through the output window to an external beam dump (optional) in order to avoid any thermal effects or stress in the housing of the Laser Power Attenuator device. An exit laser beam has a 2.25 mm beam offset.

What’s in the box?

Integrated motorized laser power attenuator
Software
Power supply DC 12V
USB (1.5 m) cable

Available accessories

Attachable beam dump <6W with coated protective window
Separated beam dump <30W
RS232 cables: 1.8 m, 5 m, 10 m, 15m
DIN35 rail adapter

Features

Integrated controller
Absolute encoder - no homing required
High accuracy - ±0,004 deg (less than ± 0,01 % of laser power)
Resolution - 0,002 deg, 7,4 arcsec, 0,035 mrad
Fast adjustment - less than 0,2 sec (min to max)
High damage threshold: up to 10J/cm2 (10 ns @ 1064 nm)
Adjustable polarizer angle

Applications

Precise laser micromachining
Laser power stabilization
Research

Name	Design Wavelength, nm	Attenuation range	LIDT	Contrast	Price	Quantity
LPA-A2-0257	257	0.2 - 96 %	2 J/cm² (10 ns @266 nm)	1:200	Request a quote	✉
LPA-A2-0266	266	0.2 - 96 %	2 J/cm² (10 ns @266 nm)	1:200	US$2,160.00
LPA-A2-0343	343	0.2 - 96 %	3 J/cm² (10 ns @355 nm)	1:500	Request a quote	✉
LPA-A2-0355	355	0.2 - 96 %	3 J/cm² (10 ns @355 nm)	1:500	Request a quote	✉
LPA-A2-0515	515	0.1 - 98 %	5 J/cm² (10 ns @532 nm)	1:1000	Request a quote	✉
LPA-A2-0515-1030	515+1030	0.5 - 95 %	5 J/cm² (10 ns @532 nm)	1:200	US$2,260.00
LPA-A2-0532	532	0.1 - 98 %	5 J/cm² (10 ns @532 nm)	1:1000	Request a quote	✉
LPA-A2-1030	1030	0.1 - 98 %	10 J/cm² (10 ns @ 1064 nm)	1:1000	Request a quote	✉
LPA-A2-1064	1064	0.1 - 98 %	10 J/cm² (10 ns @ 1064 nm)	1:1000	US$1,880.00

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Advanced Laser Power Attenuators

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