Agilent/Keysight 81682B,Agilent Keysight 81682B Optical Source

The Agilent/Keysight 81682B is a tunable laser source delivering precise wavelength control and high-power optical output across the S- and C-bands. Operating from 1460 nm to 1580 nm with mode-hop-free tuning, it reaches maximum output power of +8 dBm and achieves tuning speeds to 80 nm/s. The integrated real-time wavelength meter provides absolute accuracy of ± 10 pm, while typical repeatability reaches ± 0.5 pm.

Continuous sweep capability across the full wavelength range eliminates mode hops - critical for DWDM component characterization and optical amplifier testing. The Panda-type polarization-maintaining fiber output ensures stable, polarized light for precision measurements on integrated optical devices and passive components.

Technical Specifications

• Wavelength Range: 1460 nm to 1580 nm


• Maximum Output Power: +8 dBm


• Maximum Tuning Speed: 80 nm/s


• Wavelength Accuracy (absolute): ± 10 pm


• Wavelength Repeatability (typical): ± 0.5 pm


• Optical Output: Panda-type polarization-maintaining fiber


• Power Consumption: 240 W maximum


• Input Power: Single-phase AC, 100–240 V, 50–60 Hz (auto-selecting)


• Mains Supply Voltage Fluctuation Tolerance: ≤ 10% of specified supply voltage

Key Features

• Mode-hop-free tuning over the complete wavelength range


• Continuous sweep capability through full S- and C-band coverage


• Built-in real-time wavelength meter for enhanced measurement confidence


• Stable polarized output via Panda-type fiber geometry


• Fast wavelength tuning to 80 nm/s for dynamic characterization

Typical Applications

• Optical amplifier testing at high stimulus power levels


• Passive optical component characterization


• Integrated optical device measurement


• DWDM critical component validation

Compatibility & Integration The 81682B integrates into the 8164B mainframe and represents an upgrade path from the 81682A platform.