Optical power meters are widely available from multiple global manufacturers, with options ranging from handheld to bench-top instruments, supporting various wavelengths and sensor types.

Overview of Optical Power Meters

Optical power meters (OPMs) are devices used to measure the power of optical signals, primarily in fiber-optic systems, lasers, and laboratory setups. They consist of a calibrated sensor, measuring amplifier, and display, and are used to monitor average optical power, verify laser safety, test telecom networks, and support research and development activities . Sensors are typically photodiodes made from silicon (Si), germanium (Ge), or indium gallium arsenide (InGaAs), each with specific wavelength sensitivities .

Applications

• Telecom and fiber optics: Measuring signal power to ensure proper loss budgets and prevent receiver saturation .
• Laser manufacturing and quality control: Testing output stability and maximum power of laser diodes .
• Medical lasers: Ensuring precise power delivery for surgical or therapeutic applications .
• Laboratory research: Monitoring power fluctuations in spectroscopy, nonlinear optics, and other experiments .

Market and Supply

The global optical power meter market is growing at a CAGR of approximately 6.5%, driven by increasing R&D activities and demand in telecom, medical, and industrial sectors . Leading manufacturers include Thorlabs (U.S.), Kingfisher International (Australia), VIAVI Solutions (U.S.), Fluke Corporation (U.S.), EXFO Inc. (Canada), Newport Corporation (U.S.), Keysight Technologies (U.S.), Anritsu (Japan), and Novanta Photonics among others . These companies offer a range of products, from handheld meters for field use to bench-top consoles with multiple sensor channels and NIST-traceable calibration .

Types and Features

• Handheld vs. bench-top: Handheld meters are portable for field measurements, while bench-top units provide higher precision and multi-channel capabilities .
• Sensor types: Silicon, germanium, and InGaAs photodiodes, sometimes combined with attenuators or wavelength-selective elements for high-power or specific wavelength measurements .
• Wavelength coverage: Common ranges include 400–700 nm for visible light and 1,300–1,550 nm for fiber optics .
• Calibration: Most meters are calibrated at specific wavelengths, with data stored in the sensor head for automatic recognition by the console .

Purchasing Considerations

When sourcing optical power meters, consider:

• Wavelength range and sensor type suitable for your application.
• Measurement range and accuracy, especially for high-power or low-power signals.
• Portability vs. bench-top precision.
• Calibration traceability to standards like NIST.
• Supplier support and availability, including bundled sensor-console packages for convenience . Overall, the supply of optical power meters is robust, with multiple global manufacturers offering a wide variety of instruments suitable for telecom, industrial, medical, and research applications.