Long Pulse Laser 50 W Thermopile Sensor with 35 mm Aperture and Diffuser
Long Pulse Laser 50 W Thermopile Sensor with 35 mm Aperture and Diffuser
The L40(500)A-LP2-DIF-35 thermopile sensor is a laser power and energy thermal sensor for high power density and very small diameters lasers. It has a 35 mm aperture and can measure optical power from 300 mW to 40 W continuously and to 500 W intermittently. It can measure energy from 100 mJ to 2,000 J. The sensor is able to measure high power lasers of up to 4 kW with a 3.5 mm diameter beam by measuring the energy of 0.4 to 4 s exposure to the laser. The high damage threshold LP2 absorber together with the diffuser cover the spectral range from 440 to 2200 nm.
- LP2 type 440 to 2200 nm absorber for long pulse lasers
- 300 mW to 40 W average power measurement
- 100 mJ to 2000 J pulse energy measurement
- 500 W power measurement intermittently See All Features
Features
Product Overview of L40(500)A-LP2-DIF-35 Laser Power Sensor
You can measure high power, concentrated laser beams – with very high power densities – from a short exposure, without needing water cooling, with our new L40(500)A-LP2-DIF-35 laser power sensor.
LP2 Sensors Coating With Very High Damage Threshold and Very Low Reflection
Even higher damage threshold…flat spectral response…absorption up to 96%... These are some of the characteristics of the new “LP2” type laser power sensors from Ophir.
Choosing a Thermal Sensor
In this short “Basics” video we review the use – and selection - of thermal sensors for measuring low, medium and high laser powers.
Sensors for Measuring Laser Power
In this short "Basics" video we review in general how one goes about measuring laser beam power, so that you'll have a clear understanding of what the different sensor types are, and when to use each type.
Thermal Power Sensor Accuracy
Ophir former CTO Dr. Ephraim Greenfield discusses the various factors that contribute to uncertainties in measurement when using Ophir laser power and energy meters.
Effects of Incidence Angle on Measurements
In this video, you will learn to what degree a beam’s incidence angle matters, and for which sensor types this should be taken into account.
Thermal Sensor Calibration
As the spectral sensitivity of the absorber used for the power and energy measurement is not fully linear, Ophir sensors get a high precision calibration by default with more than one wavelength.
Each thermal sensor is calibrated independently of a particular Ophir power meter with its calibration information contained in the DB15 plug. When the sensor is connected to the meter, the meter reads and interprets this information to display a calibrated reading. Each power meter is calibrated independently and has the same sensitivity as an other meter within about 2 tenths of a percent.
Unless otherwise indicated, Ophir sensors and meters should be recalibrated within 18 months after initial purchase, and then once a year after that.
Accessories
Thermal Sensor Cables
Sensor Connector to BNC Adapter
Resources
Data Sheets
Catalogs
Power Sensors Catalog(11.2 MB, PDF) Laser Power & Energy Measurement and Laser Beam Analysis Catalog(27.5 MB, PDF)
Drawings & CAD
L40(500)A-LP2-DIF-35 Drawing(176.6 kB, PDF)
Technical Notes
Absorption, Angle Dependence and Damage Graphs for Thermal Sensors(216.1 kB, PDF) 5 Situations Where Laser Performance Measurement is Necessary Effect of Ambient Conditions on Laser Measurements How do I know what range, or scale, to set my power/energy meter to? Setting Your Thermal Sensor up in Energy Mode for the Best Accuracy and Repeatability How Much of the Power Sensor Aperture Can My Laser Fill Up? How to Properly Select a Laser Power or Energy Sensor Common Reasons for Thermal Sensor Damage or Out of Tolerance Conditions
