HP Agilent Keysight 11980A Fiber Optic Interferometer w/ OPT 005

The 11980A is a Mach-Zehnder interferometer of fixed delay. Used with a Agilent Keysight 71400 series or 83810B lightwave signal analyzer, it allows you to measure chirp and frequency modulation (FM) on DFB lasers. Traditional measurements of laser linewidth on single-line lasers can also be made.

Good used condition. Cleaned, inspected, and tested. Opt 005 installed. Reference images for item condition.