Noyes OPM4 Optical Power Meter

The Noyes OPM4 is a handheld optical power meter engineered for field measurement of optical power and insertion loss across fiber optic networks. It delivers accurate readings in dBm or µW, with insertion loss measured in dB. The instrument supports automatic wavelength identification (Wave ID) when paired with compatible Noyes OLS series light sources, automatically detecting and setting receive wavelengths to streamline testing workflows. Multiple test tone detection at 270 Hz, 330 Hz, 1 kHz, and 2 kHz enables fiber identification. Reference levels are stored per calibrated wavelength for repeatable testing. A large backlit LCD display ensures readability in variable field conditions. The OPM4 is available in four detector configurations—silicon, germanium, InGaAs, and filtered InGaAs—each calibrated for specific wavelengths and suited to distinct network applications from premises LAN to CATV and telecommunications. All measurements are N.I.S.T. traceable.

– Technical Specifications

Measurement Capabilities:
• Optical power: dBm or µW
• Insertion loss: dB
• Test tone detection: 270 Hz, 330 Hz, 1 kHz, 2 kHz
• Automatic wavelength identification with OLS light source compatibility
• Reference storage per calibrated wavelength

Detector Models & Calibrated Wavelengths:
• OPM4-1D (Silicon): 650, 660, 780, 850 nm | Range: +6 to -70 dBm
• OPM4-2D (Germanium): 850, 1300, 1310, 1490, 1550 nm | Range: +6 to -60 dBm
• OPM4-3D (InGaAs): 850, 1300, 1310, 1550, 1490, 1625 nm | Range: +6 to -70 dBm
• OPM4-4D (Filtered InGaAs): 850, 980, 1310, 1480, 1490, 1550, 1625 nm | Supports up to +26 dBm

– Key Features

• Portable design optimized for field installation, maintenance, and troubleshooting
• Large backlit LCD display for visibility across lighting conditions
• Multiple detector options enable wavelength-specific optimization
• Wave ID automation reduces configuration time and measurement errors
• N.I.S.T. traceability ensures calibration integrity

– Typical Applications

• FTTx/FTTh fiber deployment and verification
• Premises LAN/WAN installation and troubleshooting
• CATV broadband network commissioning (OPM4-4D)
• Single-mode telecommunications and WAN systems (OPM4-3D)
• DWDM system testing (OPM4-4D)

– Compatibility & Integration

Works with Noyes OLS series light sources to enable Wave ID functionality and simultaneous multi-wavelength measurement in select configurations.