Compare Model Drawings, CAD & Specs Availability Price
7Z07125
L250W-BB-50
Thermal Laser Power Sensor, BB Type, 1-250 W, Ø50 mm, 0.19-11 µm, Water-Cooled
$1,787
3 Weeks
3 Weeks
7Z07125B
L250W-BB-50 with 5m cable
Thermal Laser Power Sensor, BB Type, 1-250 W, Ø50 mm, 0.19-11 µm, Water-Cooled with 5m cable
$1,898
6 Weeks
6 Weeks

Specifications

  • Product Name
    L250W-BB-50
  • Absorber Type
    BB - Broadband general purpose
  • Aperture Size
    Ø50 mm
  • Spectral Range
    0.19-11 µm
  • Minimum Power
    1 W
  • Maximum Average Power
    250 W
  • Minimum Pulse Energy
    120 mJ
  • Maximum Pulse Energy
    200 J
  • Response Time
    2.5 s
  • Maximum Average Power Density
    10 kW/cm²
  • Maximum Energy Density <100 ns
    0.3 J/cm²
  • Maximum Energy Density 2 ms
    10 J/cm²
  • Cooling
    Water
  • Dimensions
    90 x 90 x 20 mm (LxWxD)
  • Cable Length
    1.5 m
  • CE Compliance
    Yes
  • UKCA Compliance
    Yes
  • China RoHS Compliance
    Yes

Features

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.

Water Cooled Sensors: Things to Look Out For

Water cooled sensors are commonly used when measuring laser beams of more than a few hundred watts. In this video, you will learn about some critical issues you need to consider when using water cooling, such as water temperature, water flow rate, and corrosion prevention.

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.

Absorption of different thermal sensor absorber types
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