Agilent/Keysight 86120D

The Agilent/Keysight 86120D is a multi-wavelength meter for precision measurement and analysis of optical signals across the 700 nm to 1650 nm range. Built on Michelson interferometer technology with an integrated HeNe laser reference, it delivers absolute wavelength accuracy to ±1.5 ppm and simultaneous multi-line measurement capability. The instrument characterizes and verifies optical components and systems in manufacturing and field environments with measurement cycle times under 0.6 seconds.

– Technical Specifications

Wavelength Measurement
• Range: 700 nm to 1650 nm (specified); 700 nm to 1700 nm (operating)
• Absolute accuracy: ±1.5 ppm typical, ±1 ppm (15 °C to 35 °C)
• Differential accuracy: ±0.4 ppm
• Minimum resolvable line separation: 15 GHz
• Maximum linewidth (narrowband mode): 10 GHz
• Measurement cycle time: <0.6 seconds
• Output units: nm, THz, cm⁻¹
• Broadband mode for weighted center measurement of wider lines

Optical Power Measurement
• Best accuracy: ±0.6 dB
• Calibration accuracy: ±0.6 dB (±30 nm from 780 nm, 1310 nm, 1550 nm)
• Flatness: ±0.2 dB (1200 to 1600 nm)
• Linearity: ±0.3 dB
• Input power (single line): -20 to -40 dBm
• Input power (multiple lines): 10 to 18 dBm
• Return loss: 35–50 dB

System
• Simultaneous measurement: up to 1000 laser lines
• Optical input: 9 μm/125 μm single-mode fiber
• Power consumption: 310 W
• AC input: 100 V, 115 V, 230 V, 240 V (50 Hz, 60 Hz)
• Operating temperature: 0 °C to +55 °C
• Dimensions: 138 × 425 × 520 mm

– Key Features

• Built-in OSNR, wavelength, and power drift measurement applications
• Delta modes for wavelength, power, and combined wavelength/power tracking
• DWDM signal and multi-line Fabry-Perot laser characterization
• Interfaces: LAN, GPIB, USB, PS/2, SVGA, DVI
• Shock and vibration qualified for demanding test environments