Item Number: FLS-600
Packaging Unit: 1 / each
  • Up to 3 singlemode wavelengths (1310nm, 1550nm, & 1490nm or 1625nm) on a single port, or 4 wavelengths (850/1300nm & 1310/1550nm) on 2 ports.
  • Choose among laser, LED models, as well as various wavelength options
  • Features a backlit keypad/LCD for easy operation in darker environments
  • Built for ruggedness, perfect for the harshest test conditions
  • Error-free, time-saving test features
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Product Information

Part of EXFO’s 600 handheld series, the FLS-600 Light Source is designed for first-class versatility—it offers laser and LED models, as well as various wavelength options. What’s more, you can save time by building a list of your “favourite” wavelengths and only sweeping through these wavelengths when testing.

Using the FLS-600 in Auto-Switching Mode allows to automatically toggle between available wavelengths. When using this source with a compatible power meter (Optical Power Expert/FOT-600), the latter recognizes the wavelength in use and switches to the proper calibration parameter.

Signal encrypting can also give the receiving-end information on the power to be used as reference, helping ensure efficient referencing, even when the two units are far apart.


  • Link-loss characterization
  • LAN/WAN certification
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