Agilent 86120C Multi-Wavelength Meter – A Quick Overview
The Agilent 86120C is a Michelson interferometer-based multi-wavelength meter designed for precise optical wavelength and power measurement. It remains a trusted tool for DWDM system development, optical component manufacturing, and network verification.
Key Specs:
Wavelength range: 1270 – 1650 nm
Accuracy: ±2 ppm (absolute)
Measures up to 200 laser lines simultaneously
Built-in HeNe wavelength standard for real-time traceability
High input power: up to 10 dBm (18 dBm safe)
Scan speed: < 1 second
Why it stands out:
Direct transmitter testing – no external attenuators needed
Excellent for DWDM channel characterization and crosstalk detection
Multiple connector options available (FC, SC, ST, DIN, APC)
Status: Discontinued by Keysight, but still widely available through the used/refurbished market – and still a reliable workhorse in many labs.
