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Measure optical power from pW to mW.

The OPM series of optical power meters employs photodiodes for the measurement and monitoring of optical power from the UV to near IR.

OPM150

  • Input:
    Detector Heads
  • USB Port:
    Yes
  • Output:
    Didital & Analoque
  • Power Range:
    nW - kW

OPM200

  • Input:
    Fibre Connection (FC / SMA)
  • USB Port:
    No
  • Output:
    Analoque
  • Power Range:
    µW - mW

OPM400

  • Input:
    Fibre Connection (FC / SMA)
  • USB Port:
    No
  • Output:
    Analoque
  • Power Range:
    nW - mW

OPM500

  • Input:
    Fibre Connection (FC / SMA)
  • USB Port:
    Yes
  • Output:
    Didital & Analoque
  • Power Range:
    pW - mW

OPM150

  • Input:
    Detector Heads
  • USB Port:
    Yes
  • Output:
    Didital & Analoque
  • Power Range:
    nW - kW

OPM200

  • Input:
    Fibre Connection (FC / SMA)
  • USB Port:
    No
  • Output:
    Analoque
  • Power Range:
    µW - mW

OPM400

  • Input:
    Fibre Connection (FC / SMA)
  • USB Port:
    No
  • Output:
    Analoque
  • Power Range:
    nW - mW

OPM500

  • Input:
    Fibre Connection (FC / SMA)
  • USB Port:
    Yes
  • Output:
    Didital & Analoque
  • Power Range:
    pW - mW

Do you need further information? Find useful links here!

Precise Measurement from pW to kW

Optical power meters from Artifex Engineering measure and monitor optical power from the UV to the near infrared (250–2490 nm). They use high-quality photodiodes and precision transimpedance input stages. Four models cover measurement ranges from picowatts to kilowatts. They are designed for laboratory work, laser servicing and OEM integration, including automated fibre and micro-optic alignment systems.

Whether you need a USB-powered laser power meter with detector heads or a high-bandwidth optical power monitor for feedback loops, our models deliver fast response times, high sensitivity and a wide dynamic range.

Our power meters are built for accurate, reliable results in demanding environments:

  • Fast response time at a high signal-to-noise ratio. This makes them ideal for real-time monitoring and control loops.
  • High sensitivity. You can detect signals down to the picowatt range.
  • Wide dynamic range. You can measure LEDs, low-power sources and high-power lasers with one product family.
  • Flexible photodiode options. You can choose the detector material and optical input (free beam, FC or SMA fibre) to suit your wavelength.
  • EMI-resistant by design. They are well suited to “dirty” industrial environments.
  • OEM-ready. They have compact enclosures, mounting wings for 25 mm and 1″ optical tables, and USB or DB25 control.

OPMs are used wherever optical power must be measured or monitored accurately:

  • OEM systems. Examples are automated fibre alignment and micro-optic alignment.
  • Laboratory research. This includes characterising lasers, LEDs and other light sources.
  • Laser servicing and field use. The units are portable and USB-powered.
  • Control feedback loops. They provide fast analogue or hardwired real-time control.
  • Polarization measurements. An example is the polarization extinction ratio (PER).
  • Noise analysis. You can analyse high-frequency noise in light sources.

The series of laser measuring instruments OPM150 is designed for use with photodiode-based detector heads and integrating spheres from Artifex Engineering to measure optical power. The amplifiers employ precision transimpedance input stages to provide for high common mode rejection and linearity throughout the full dynamic range.

These laser power meters are particularly suitable for OEM applications, in the laboratory or for field use such as laser servicing. The unit is USB powered: no external power supply is required. The optical power is sampled at up to 600samples/s using the graphical software supplied. The high sensitivity and large dynamic range allow measurement of a wide range of optical sources such as lasers and LEDs.

These compact measuring instruments are insensitive to electromagnetic interference by design, an important factor when working in “dirty” industrial environments.

The laser measurement meter OPM150 may be controlled via the USB port using the graphical user interface software provided with the instrument. Alternatively, the amplifier may be controlled through direct commands via the USB interface (virtual COM-port). This mode of operation is particularly interesting for OEM applications.

The software development kit comprising the GUI source code, a Python library as well as a LabVIEW demo VI allows for easy integration.

A wide range of detector heads for free beam and fibre coupled measurement are available. These include large area photodiode heads as well as integrating spheres covering the range 250-2490nm and from 2nW up to 12kW.

LabVIEW® is a registered trademark of the National Instruments Corporation.

The laser measuring instrument OPM200 employs high quality photodiodes and precision transimpedance input stages to provide for low offset and high linearity throughout the full dynamic range.
The OPM200 is designed for precise, high speed measurement of optical power in the µW to mW range. The output is a voltage linearly proportional to the input power.


The gain of the OPM200 is fixed. These optical power monitors are particularly useful for the measurement of rapidly changing optical signals. These laser measurement meters have a particularly high bandwidth of 5MHz allowing monitoring of high frequency noise components of many light sources.
The fast response time at high signal-noise-ratio makes this series particularly useful in systems control feedback loops.
The OPM200 series is insensitive to electromagnetic interference by design, an important factor when working in „dirty“ industrial environments. These optical light power meters are provided in OEM-style enclosures. The case wings provide for mounting on standard 25mm and 1“ optical table tops and for OEM applications.

The OPM400 laser power meter employs quality photodiodes and precision transimpedance input stages to prodie for low offset and high linearity throughout a wide dynamic range.
There are 16 gain ranges covering 5 decades of gain in a 1-2-5 pattern. The gain-to-gain accuracy of <1% allows confident measurements of power curves over the full range of sensitivity of the device: 6½ decades of measurement range. Thus even very demanding measurements such as the accurate and high speed, real-time determination of polarization extinction ratio becomes a simple task. The sturdy enclosure with mounting wings serves use in the lab as well as for OEM applications.


Functional control is via a DB25 hardwire interface for direct, sub µs control of all parameters. This feature is useful for OEM implementation in feedback loops such as fibre alignment applications.

The OPM500 is a versatile power monitor for use in the lab and for laser servicing as well as for OEM applications.

This laser measuring instrument can be delivered with an FC or SMA fibre input. Functional control is via the USB interface or via the DB25 hardwire interface for direct, sub µs control of all parameters. This feature is useful for OEM implementation in feedback loops such as fibre alignment applications.

Detectors are available covering 250-2490 nm depending on the photodiode material chosen. The graphical user interface is intuitive to use and easy to read! The software includes a scope function, data logging and a large, digital display – perfect for daily use in the lab or in the field. Further functions such as autogain and various storage formats are also included.
The OPM500 is small and is USB controlled. Not only the small size qualifies this instrument für OEM applications. It is very simple and flexible to integrate into your project.


The unit comes delivered with drivers for direct communication or to be used as a virtual COM-port. Furthermore, we provide a full software developement kit including the source code for the GUI application as well as a demo LabView-VI®.

FAQs

What is an optical power meter?

An OPM is an instrument that measures the power of a light source, such as a laser, LED or fibre-coupled signal. Artifex optical power meters use photodiodes and precision transimpedance amplifiers to convert light into an accurate electrical signal.

What power range can our OPM series measure?

Depending on the model and detector, our units measure from picowatts (OPM500) up to 12 kW (OPM150 with integrating spheres or detector heads).

Which wavelengths do the optical power meters cover?

Depending on the photodiode material chosen, the detectors cover 250 nm to 2490 nm, from the UV to the near infrared.

What is the difference between an optical power meter and a laser power meter?

A laser power meter is an optical power meter used specifically to measure laser output. All OPM models can be used as laser power meters, and they can also measure other sources such as LEDs.

Which optical power monitor is best for fibre alignment?

The OPM400 and OPM500 are ideal for fibre alignment. Their DB25 hardwire interface gives direct, sub-µs control of all parameters for fast OEM feedback loops.

Which model has the fastest response?

The OPM200 offers a 5 MHz bandwidth. That makes it the best choice for rapidly changing optical signals and high-frequency noise analysis.

Can the optical power meters be integrated into OEM systems?

Yes. All models feature compact, OEM-style enclosures. The OPM150 and OPM500 include an SDK with GUI source code, drivers and a LabVIEW® demo VI, and the OPM150 also includes a Python library.

Do the OPMs need an external power supply?

The OPM150 is fully USB powered and needs no external power supply.

Are the optical power meters resistant to electromagnetic interference?

Yes. The OPM150 and OPM200 are insensitive to electromagnetic interference by design, which makes them reliable in industrial environments.

Which fibre connectors are supported?

The OPM200, OPM400 and OPM500 are available with FC or SMA fibre inputs. The OPM150 supports both fibre-coupled and free-beam detector heads.

Donovan Ellis

Measuring Instruments

Donovan Ellis

Measuring Instruments