Agilent / Keysight 86122B Multi-Wavelength Meter Range: 1270-1650 nm

The Agilent/Keysight 86122B Multi-Wavelength Meter delivers precise wavelength measurement across the 1270–1650 nm band for optical component and subsystem verification. This re-engineered successor to the 86122A maintains backward compatibility while supporting modern computing environments and 24/7 testing operations with minimal downtime. The instrument resolves up to 1000 laser lines and characterizes tunable transmitter lasers and optical subsystems critical to high-speed telecommunications and photonics development.

Technical Specifications

• Wavelength Range: 1270–1650 nm (182–236 THz)


• Wavelength Absolute Accuracy: ±0.2 ppm (±0.3 pm at 1310 nm and 1550 nm) for laser lines separated by ≥10 GHz


• Maximum Laser Lines: 1000


• Minimum Resolvable Line Separation: 5 GHz


• Maximum Linewidth (Narrowband Mode): 2.5 GHz


• Wavelength Scan Speed: <0.5 seconds


• Measurement Cycle Time: 0.5 seconds


• Maximum Laser Input Power: +10 dBm (+18 dBm safe input level)


• Power Consumption: Maximum 240 W


• Power Supply: 100–240 V AC, 50–60 Hz, auto-ranging with <10% mains tolerance

Key Features

• Integrated HeNe laser wavelength standard for absolute accuracy


• Advanced measurement modules: Drift, OSNR, Data Logging, and Fabry-Perot laser characterization


• Graphical display for rapid qualitative signal analysis


• Two front-panel USB ports for peripherals and data export


• Single-phase AC operation with auto voltage selection and monitoring

Typical Applications

• Tunable laser transmitter development and manufacturing


• Optical subsystem verification and qualification


• High-speed telecommunications component testing


• Photonics research and validation

Compatibility & Integration Backward compatible with the 86122A platform. Operates from standard single-phase AC mains with auto-sensing voltage range. USB connectivity supports external keyboards, mice, and flash storage for flexible laboratory integration.