15 µW to 3 W 0.1-30 THz Thermopile Sensor with Ø12 mm Aperture
15 µW to 3 W 0.1-30 THz Thermopile Sensor with Ø12 mm Aperture
The 3A-P-THz thermopile sensor is a very sensitive laser power and energy thermal sensor with calibration for terahertz wavelengths. It has a 12 mm aperture. It can measure optical power from 15 µW to 3W and energy from 20 µJ to 2 J. It is calibrated for the spectral range 0.1 to 30 THz.
- P type high sensitivity 0.1 to 30 THz absorber
- 15 µW to 3 W power measurement range
- 20 µJ to 2 J energy measurement range
- Very low noise and drift
- Fiber optic adapters available See All Features
Features
How to Measure Power of TeraHertz Beams
THz radiation is being talked about more and more lately, because of its unique usefulness in a wide range of applications. In this video you will learn about some of these applications, and about a range of solutions Ophir offers for measuring THz beams.
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.
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.
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 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
Fiber Connector Adapters
Sensor Connector to BNC Adapter
Resources
Data Sheets
High Sensitivity Thermal Sensors 8μW to 3W Datasheet(223.6 kB, PDF)
Catalogs
Power Sensors Catalog(11.2 MB, PDF) Laser Power & Energy Measurement and Laser Beam Analysis Catalog(27.5 MB, PDF)
Drawings & CAD
3A-P-THZ Drawing(183.7 kB, PDF)
Technical Notes
Absorption, Angle Dependence and Damage Graphs for Thermal Sensors(216.1 kB, PDF) Calibration of Ophir Terahertz Sensors 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
Technical Articles
Laser Beam Diagnostics in GHz Applications Bridging the THz Gap in Radiometry Ophir Power/Energy Meter Calibration Procedure and Traceability/Error Analysis Laser Measurements in Materials Processing
