To take the uncertainty out of monitoring loss over long periods of time Keysight’s 81656A 1550nm Fabry Perot source is stabilized and very insensitive to backreflections.

The Keysight 81656A Fabry-Perot laser source is a single-wavelength module to be used in conjunction with optical power meter modules for insertion loss optical return loss and PDL measurement of broadband components and fiber. The 81656A Fabry-Perot laser module is insensitive to back reflections and is stabilized for short and long-term applications.

Key Specifications

Key performance specifications

  • 1550nm
  • 20mW (>13dBm) output power
  • CW power stability: ±0.03db (24h)
  • Internal digital modulation