The optical power meter displays two wavelengths

Dual-wavelength optical power meters can display two wavelengths simultaneously, allowing faster and more accurate fiber testing.How Dual-Wavelength Power Meters WorkDual-wavelength meters use either ...

The optical power meter displays two wavelengths

Dual-wavelength optical power meters can display two wavelengths simultaneously, allowing faster and more accurate fiber testing.

How Dual-Wavelength Power Meters Work

Dual-wavelength meters use either optical splitting or electronic separation to measure two wavelengths at the same time. One common method uses a wavelength-division multiplexer (WDM) or thin-film filters to direct light at 1310 nm and 1550 nm to separate detectors, each with its own calibration. Another approach uses a single broadband detector with modulated light sources at different frequencies (e.g., 270 Hz for 1310 nm, 330 Hz for 1550 nm), allowing the meter to electronically separate and display both readings simultaneously. This setup saves time during acceptance testing and ensures accurate detection of wavelength-dependent losses and bend sensitivity in fibers .

Recommended Products

  • AFL OPM5 and OPM4: These meters support Wave ID, detecting two or more wavelengths simultaneously. They are rugged, field-ready, and compatible with AFL dual-wavelength light sources. The OPM5 stores optical references for each wavelength and allows USB transfer to PC software for reporting and analysis .

  • GAOTek High-Resolution Optical Power Meter: Offers multi-wavelength measurement (850 nm, 980 nm, 1310 nm, 1550 nm) with high display resolution. It supports both direct and relative optical power tests, suitable for LAN, WAN, CATV, and long-distance fiber networks .

  • Fluke Networks FTK1375 Fiber Optic Power Meter Kit: While primarily focused on fiber inspection, it integrates with SimpliFiber Pro PMLS kits for multimode and single-mode testing. It simplifies testing in high-density fiber environments and can be paired with compatible dual-wavelength sources .

Benefits of Dual-Wavelength Meters

  • Time Efficiency: Simultaneous readings eliminate the need to switch wavelengths manually.
  • Accuracy: Detects wavelength-specific attenuation and bend losses, critical for single-mode fibers.
  • Field Usability: Many models are rugged, splash-resistant, and battery-powered for outdoor or lab use.
  • Data Management: Some meters store results and integrate with software for reporting and compliance verification.

For fiber network testing, choosing a dual-wavelength optical power meter with Wave ID capability and compatibility with your light sources ensures faster, more reliable measurements and reduces technician errors.

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