The Ando AQ8201-31B is a plug-in optical attenuator module engineered to extend the measurement capabilities of Ando AQ8201 series mainframes. It delivers precise, repeatable optical attenuation across the C and L bands, making it essential for characterizing optical components, subsystems, and communication links with high accuracy and stability.
## Technical Specifications
• **Wavelength Range:** 1200 nm to 1600 nm
• **Maximum Attenuation:** 60 dB
• **Attenuation Step Resolution:** 0.05 dB
• **Optical Return Loss:** ≥ 60 dB (1310–1550 nm)
• **Maximum Input Power:** +23 dBm
• **Insertion Loss:** ≤ 2.5 dB (1310/1550 nm)
• **Linearity:** ± 0.1 dB (1310/1550 nm)
• **Repeatability:** ± 0.02 dB
• **Optical Connector:** FC/APC
• **Supported Fiber:** Single-mode (SM) 9/125 µm
## Key Features
• Fine 0.05 dB attenuation granularity enables precise optical power control and measurement validation across wide dynamic range scenarios.
• Exceptional ± 0.02 dB repeatability and ± 0.1 dB linearity ensure consistent, traceable results for production testing and compliance verification.
• High optical return loss (≥ 60 dB) minimizes back-reflection artifacts in sensitive measurements.
• Low insertion loss (≤ 2.5 dB) preserves signal integrity in cascaded test setups.
• Standard FC/APC connectors simplify field deployment and reduce insertion-related uncertainty.
## Typical Applications
• Optical receiver sensitivity and dynamic range characterization
• Transceiver and module power compliance testing
• Optical link loss budgeting and validation
• Component attenuation measurement and verification
• Signal path validation in optical test benches
## Compatibility & Integration
The AQ8201-31B integrates directly into Ando AQ8201A, AQ8203, AQ8202, and AQ8204 measurement systems as a plug-in module. It operates across the wavelength band from 1200 nm to 1600 nm, accommodating standard single-mode fiber (9/125 µm). Units ship with NIST-traceable calibration certificates and measurement data.
