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Manually Adjustable Polarization Indensitive Tunable Filters

Key Features

  • Narrow linewidth
  • Polarization insensitive
  • Wide wavelength range
  • Singlemode, multimode and polarization maintaining fiber versions
  • High resolution


Tunable filters consist of a collimating optical assembly, an adjustable narrow bandpass filter and a focusing optical assembly to collect the light again. Tunable filters are available in three versions - a manually adjustable version, a motor driven version for OEM applications and a digital version with a display and computer interface.

The manual tunable filter is a pigtailed component with a rotating stage that allows for the manual adjustment of the angle of incidence between the beam and the filter. The filter works based on the principle that by adjusting the angle of incidence between the filter and the incident beam one controls the wavelength at which the filter transmits.


  • Dense Wavelength Division Multiplexing (DWDM)
  • Tunable sources
  • Spectral analysis
  • Quality control and measurement
  • Product development
  • Fiber optic component manufacturing