The Yokogawa AQ2200-331 is a variable optical attenuator module designed for integration into the AQ2200 series modular optical test and measurement platform. It delivers precise, stable optical signal power reduction across a broad wavelength range, making it essential for optical communication network development, component validation, and laboratory characterization. The module combines wide attenuation capability with minimal insertion loss and excellent return loss performance, maintaining signal integrity in demanding measurement scenarios.
Technical Specifications
Attenuation Control
• Attenuation range: 0 to 60 dB
• Resolution: 0.01 dB
• Accuracy: ±0.2 dB or ±2% of setting (whichever is greater)
• Wavelength range: 1200 nm to 1650 nm
Optical Performance
• Insertion loss: ≤1.0 dB at 1550 nm
• Return loss: ≥45 dB at 1550 nm with PC connector
• Polarization dependent loss: ≤0.1 dB at 1550 nm
• Maximum input power: +20 dBm
Module Interface
• Connector type: SC/PC, FC/PC, or LC/PC (interchangeable, configuration dependent)
• Control: Direct AQ2200 mainframe bus integration
Environmental
• Operating temperature: 0 °C to 40 °C
• Storage temperature: -20 °C to 60 °C
• Operating humidity: 20% to 85% RH, non-condensing
Physical
• Form factor: Designed for AQ2200 mainframe slot configuration
– Key Features
• 60 dB attenuation span with 0.01 dB step resolution
• Broad 1200–1650 nm wavelength coverage
• Low insertion loss maintains measurement accuracy
• High return loss minimizes reflections
• PDL control ensures polarization-independent performance
• Direct mainframe control eliminates external interface complexity
– Typical Applications
• Optical communication system development and validation
• Component characterization across C and L bands
• Signal power management in test configurations
• Network performance assessment and troubleshooting
– Compatibility & Integration
The AQ2200-331 operates exclusively within Yokogawa AQ2200 series mainframes. Power and control are supplied by the host system; no external connections are required.

















