ILX Lightwave FPM-8210 Optical Meter

The ILX Lightwave FPM-8210 is a fiber optic power meter designed for precision optical power measurements across the 800 nm to 1650 nm wavelength range. Built around an InGaAs sensor, the instrument delivers ±2.5% accuracy under reference conditions and ±5.0% under operating conditions, with measurement repeatability of ±0.003 dB typical. The single input port accepts both connectorized (FC/PC, FC/APC, LC, SC) and bare fiber configurations, eliminating the need for multiple test heads in production environments.

Technical Specifications

• Wavelength Range: 800 nm to 1650 nm


• Power Measurement Range: -70 dBm to +20 dBm; +23 dBm to –70 dBm for λ < 1000 nm


• Maximum Power Level: +33 dBm at pump wavelengths ( +40 dBm


• Accuracy: ±2.5% (reference conditions), ±5.0% (operating conditions)


• Measurement Repeatability: ±0.003 dB typical


• Polarization Dependent Response: ±0.001 dB typical; ±0.002 dB typical


• Noise: ≤100 pW p-p at 1630 nm typical; <40 pW p-p at 1310 and 1550 nm typical


• Temperature Coefficient: ±0.2%/°C typical


• Linearity: ±0.02 dB, ±100 pW (-60 dBm to +20 dBm)


• Entrance Aperture: 2.54 mm


• Analog Output: 0 to 10 V, 1000 Ω impedance, 0 to 10 Hz bandwidth

Key Features

• InGaAs sensor for extended NIR sensitivity


• Dual measurement range capability for sub-1000 nm and full-band operation


• ±0.003 dB repeatability enables tight process control


• Low polarization sensitivity minimizes calibration complexity


• GPIB (IEEE 488.2) interface for workstation integration

Typical Applications

• Laser and light source characterization


• Optical component test and qualification


• Fiber optic system commissioning


• High-throughput manufacturing test environments

Compatibility & Integration

• Compatible with ILX Lightwave or Agilent bare fiber holders


• CA-120 Bare Fiber Adapter supported


• Standard connector adapters available for FC, SC, and LC interfaces


• Class I equipment; ±10% mains supply voltage tolerance