The Keysight 86122C Multi-Wavelength Meter delivers precision measurement of optical wavelengths, power, and Optical Signal-to-Noise Ratio (OSNR) across the 1270 nm to 1650 nm band. Purpose-built for DWDM and CWDM system characterization, it enables development, manufacturing, and verification workflows for tunable transmitter lasers and optical subsystems in high-speed communication networks.
Technical Specifications
• Wavelength range: 1270 nm to 1650 nm
• Absolute wavelength accuracy: ± 0.2 ppm
• Differential wavelength accuracy: ± 0.15 ppm
• Power accuracy: ± 0.5 dB
• Measurement cycle time: 0.3 seconds (with fast update option 86122C-110)
• Minimum resolvable line separation: 5 GHz
• Maximum linewidth (narrowband mode): 2.5 GHz
• Simultaneous laser line measurement capacity: up to 1,000 lines
• Safe input power level: +18 dBm
• Supported high input power level: +10 dBm
– Key Features
• Built-in HeNe reference laser ensures real-time absolute wavelength measurement traceable to NIST
• Narrowband and broadband measurement modes—broadband mode measures weighted center of wider spectral lines
• Standalone test capability with built-in applications for OSNR, wavelength drift, and power drift monitoring
• Windows-based software control
• Autoranging AC line input with three-prong power cord required for earth grounding
– Typical Applications
• DWDM and CWDM system testing and validation
• Tunable laser transmitter development and manufacturing
• Optical subsystem characterization for high-speed communications
• Production verification of wavelength and power performance
– Compatibility & Integration
Designed for indoor use. Safety Class 1 product compliant with IEC 60825-1 (2014) and 21 CFR 1040.10 laser regulations. Requires adequate ventilation; forced convection mandatory if cabinet power dissipation exceeds 800 watts. No operator serviceable components—qualified personnel required for service.
