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Short Exposure Laser Power Sensor, LP2, 0.2 W to 8 kW, Ø32 mm, 440-550/900-1100 nm, 2.94μm, 10.6μm

PC Software & Drivers

This section describes various ways to interface the Ophir meter to your PC as well as the software options available. Check out the datasheet for more details.


The StarLab application together with an Ophir meter turns your PC or laptop into a full-fledged laser power/energy meter. Supports most Ophir laser power/energy sensors. Up to 8 sensors can be displayed at once on one PC. By using the Ophir COM Object, you can control the device from your own application. Supports the Ariel, Centauri, StarBright, StarLite, Juno, Juno+, Nova II, Vega, Pulsar-1/2/4, Quasar, EA-1 and Ariel devices.


StarViewer turns your Android or iOS based smartphone into a portable Ophir laser power / energy measurement monitor.
The iOS version of StarViewer works with Ariel sensor.
The Android version of StarViewer works with Ariel, as well as with Juno and Quasar interfaces.

Firmware - Ariel (latest version 1.33)

Embedded Software for Ariel
Use StarLab version 3.62 (and up) to upgrade the firmware of your device. Press Here for step-by-step instructions.


  • Product Name
  • Spectral Range
    440-550 nm, 900-1100 nm, 2.94 µm, 10.6 µm
  • Absorber Type
  • Aperture Size
    Ø32 mm
  • Minimum Power
    0.2 W
  • Minimum Pulse Energy
    8 kW
  • Maximum Pulse Energy
    2.4 kJ
  • Backscattered Power
    LP2 absorber: 4% (<2200 nm), 10% (2940 nm), 25% (10.6 µm); With window: 5%; With Diffuser: 25%
  • Response Time
    3 s
  • Dimensions
    70 x 70 x 80 mm (LxWxD)
  • CE Compliance
  • UKCA Compliance
  • China RoHS Compliance


Ariel, Ultra-Compact "All in One" Sensor Overview

Designed for OEM and end-user applications in closed and confined spaces, such as additive manufacturing, metal cutting, and welding, the Ariel power meter is a robust, battery-powered device that requires no water or fan cooling and is small enough to fit in the palm of your hand. The system measures laser powers from 200 mW to 8 kW, and at a wide range of wavelengths, including 440-550nm green and blue lasers, increasingly popular in copper welding.

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.

Measuring Very High Power Laser Beams

Laser beams with powers of many tens of Kilowatts are becoming more and more common in today's applications, industrial as well as research. This video will discuss the technical challenges in measuring such lasers, and will show you a range of solutions now available from Ophir for measuring up to 100KW -- safely, and accurately.

How to Use the StarViewer Android App to Operate the Ariel

In this short video, you'll learn how to use the "StarViewer" Android App to operate the Ariel, Ophir’s new ultra-compact self-contained industrial power meter.

Ariel All-in-One High Power Laser Sensor: How to Use

Learn how to use the Ariel, Ophir’s new ultra-compact "All in One" sensor for measuring high power industrial lasers up to 8KW.

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