The Keysight (formerly Agilent / HP) 86120C is a high-performance multi-wavelength meter designed to quickly and accurately characterize optical components and multi-wavelength WDM networks. It features the ability to simultaneously measure the wavelength and power of up to 200 laser lines in the 1270 nm to 1650 nm range. Utilizing a built-in HeNe laser wavelength standard, the 86120C achieves ±2 ppm absolute wavelength accuracy and includes specialized onboard measurement applications for drift tracking, OSNR, data logging, and Fabry-Perot laser characterization.

Specifications

General

ParameterValue
InterfacesGPIB, RS-232

Physical

ParameterValue
Power Supply100 to 240 VAC, 50/60 Hz
Operating Temperature0 to +55

Wavelength Specifications

ParameterValue
Wavelength Range1270 nm to 1650 nm
Absolute Wavelength Accuracy±2 ppm (±3 pm at 1550 nm)
Minimum Resolvable Separation10 GHz (~0.08 nm at 1550 nm)
Wavelength Display Resolution0.001 nm
Calibration Wavelength StandardBuilt-in HeNe laser

Power Specifications

ParameterValue
Measurement Power Range-40 dBm to +10 dBm (1270 nm to 1600 nm)
Maximum Safe Input Power+18 dBm
Absolute Power Accuracy±0.5 dB
Power Linearity±0.3 dB
Polarization Dependent Response±0.5 dB (1270 nm to 1600 nm)
Power Display Resolution0.01 dB

Optical Input Specifications

ParameterValue
Compatible Fiber Type9/125 µm single-mode

Measurement & Performance Characteristics

ParameterValue
Maximum Number of Measurable Wavelengths200

Application & Analysis Features

ParameterValue
Display Units (Wavelength)nm, THz, cm⁻¹
Display Units (Power)dBm, mW, µW

Technology

Michelson Interferometer-based Multi-Wavelength Meter

Applications

WDM component test, optical network verification, FP laser characterization, OSNR measurement