The Ando AQ8201-21 is a high-sensitivity optical power meter module designed for accurate, real-time measurement of optical power in fiber optic networks. Built around a cooled InGaAs detector, it integrates into Ando AQ8201 Series mainframes as a single-slot module, enabling deployment across laboratory characterization, component testing, and telecommunications network maintenance workflows.
Technical Specifications
• Detector Type: Cooled InGaAs
• Wavelength Range: 600 to 1700 nm or 700 to 1700 nm
• Power Range (CW Light): −80 to +27 dBm or −80 to +10 dBm
• Power Range (Chopped Light): −80 to +24 dBm
• Inaccuracy (Reference Condition): ±2.5% at 1310 nm calibration point
• Total Accuracy: ±5% (1000 to 1650 nm)
• Linearity: ±0.05 dB (1000 to 1650 nm, −40 to +27 dBm)
• Noise Floor: −73 dBm or less (CW and chopped light)
• Polarization Dependent Loss: 0.02 dB P-P typical at 1550 nm (single-mode fiber)
– Key Features
• Cooled InGaAs detector provides extended wavelength coverage and superior sensitivity across the 600–1700 nm band
• Wide dynamic range supports both continuous-wave and chopped light measurement modes
• Excellent linearity specification ensures accurate power tracking across a 67 dB span
• Low noise floor enables detection of weak optical signals
• Minimal polarization-dependent loss ensures repeatable measurements regardless of input polarization state
• Optimized for small-diameter silica fiber emission characterization
– Connector Options
Standard configuration ships with AQ9389B FC adapter. Optional interfaces include FC, ST, SC, 1.25 mm, and LC connector types, enabling integration with existing test infrastructure.
– Compatibility & Integration
The AQ8201-21 slots directly into Ando AQ8201, AQ8202, and AQ8203 mainframes, as well as AQ8204 units. Full integration within the Ando AQ8200 Series Optical Test and Measurement System architecture is supported.


















