The Exfo FPM-302 is a handheld fiber optic optical power meter engineered for precise measurement of optical signal strength across multiple wavelengths. It delivers accurate power quantification from 10 dBm to –60 dBm with extended display capability to –65 dBm, enabling field technicians and network engineers to identify signal loss, verify network performance, and troubleshoot fiber optic infrastructures. Built around a Germanium detector, the FPM-302 offers 0.01 dB resolution and ±5% ±1 nW uncertainty across 10 calibrated wavelengths spanning 830 nm to 1625 nm.
## Technical Specifications
• **Detector Type:** Germanium (Ge)
• **Calibrated Wavelengths:** 830 nm, 850 nm, 980 nm, 1300 nm, 1310 nm, 1450 nm, 1490 nm, 1550 nm, 1590 nm, 1625 nm
• **Power Range:** 10 dBm to –60 dBm
• **Displayed Power Range:** Down to –65 dBm
• **Power Uncertainty:** ±5% ±1 nW
• **Resolution:** 0.01 dB
• **Measurement Units:** dB, dBm, Watt
• **Tone Detection Frequencies:** 270 Hz, 1 kHz, 2 kHz
• **Screen Refresh Rate:** 3 Hz
• **Warm-up Time:** 0 seconds
• **Battery Life:** Over 300 hours typical
• **Connector:** FC (adapters available for alternate types)
## Key Features
• **Auto-Wavelength Recognition:** Automatically selects correct calibration parameters when paired with EXFO FLS-300 or FOT-300 sources using encrypted wavelength-identification protocols
• **Automatic Offset Nulling:** Eliminates manual nulling steps, reducing measurement time
• **Distant Referencing:** Supports long-distance referencing via encrypted signal transmission from compatible sources
• **FTTx Ready:** Compliant with ITU-T G.983, G.984, and IEEE 802.3ah for passive optical network testing at 1310 nm, 1490 nm, and 1550 nm
## Typical Applications
• Fiber optic infrastructure installation and maintenance
• Passive optical network (PON) commissioning and troubleshooting
• Signal strength verification across telecom wavelengths
• Optical loss quantification and link budgeting
## Compatibility & Integration
The FPM-302 integrates with EXFO FLS-300 and FOT-300 light sources for automated wavelength-specific calibration. Standard accessories include user guide, calibration certificate, AC adapter, connector adapter, three AA batteries, wrist strap, and carrying case.
