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81640B Tunable Laser Source

Product Status: Obsolete | View Service Options
This product is no longer available

A replacement for this product is available:

Key Features & Specifications

  • Wavelength Range: 1495 to 1640 nm
  • Max. Output Power: + 4dBm (Output2)
  • Max. Tuning Speed: 80nm/s with Dynamic Specifications
  • Wavelength Accuracy (abs.): ± 10pm


The Keysight 81640B tunable laser source covers both C- and L - Band. It is specially designed for testing critical DWDM passive components.

Keysight "A" Tunable Laser Sources can be upgraded.

The 81640B works in both DWDM bands (C- and L-band). It has continuous sweep through full wavelength range, 4 complete spectral bands (E-, S-, C-, and L- band) coverage with 2 lasers, fast tuning speed with dynamic specification, low source spontaneous emission output for high dynamic range, high power optical output for optical amplifier, built in real-time wavelength meter, mode-hop free tuning over full wavelength range and Panda type polarization maintaining fiber outputs.