86120C wavemeter

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.