Narrow Band Tuneable Filters Wideband Tuenable Filters BandPass Tuneable Filters Bandwidth Adjustable Tuneable Filters

Together with its partners ELUXI is able to offer a comprehensive range of solutions in this area.  If you cannot find what you are looking for from the information below, please contact us directly.




Narrowband Tunable Filters of WLTF-NM- & WLTF-NE- series are built based on free-space optical Fourier transformation combing with diffraction grating. Patent-pending optics design offers great options of bandwidth with unprecedented low insertion loss and polarization dependent loss (PDL). Precise tuning mechanism enables filters to provide high wavelength resolution and repeatability. Both of manual and electric version filters are available over X-, O-, S-, C-, & L- bands. Wavelength-tuning is actuated by either a precise micrometer driver or a built-in micro motor connected to a PC through a USB (I²C or SPI) interface in which actuation is monitored by a built-in encoder and controlled dynamically in a closed-loop. Motor control software is provided.

Unique optics design enables the filter to offer a great variation of bandwidth options, unprecedented & unsuppressed low insertion loss and polarization dependent loss (PDL) over main wavelength bands from 1000nm to 1700nm. Precise tuning mechanism enables filter to provide high wavelength resolution and excellent wavelength repeatability. Superior performance and compact footprint enable the filter to be a cost-effective wavelength-tuning solution for system integrations as well as laboratory purposes.


Narrowband Tuneable Filters

Narrowband Tuneable Filter

Key Features

  • Wavelength range over X-, O-, S-, C- and L- bands
  • Up to 200nm wavelength tuning range
  • Down to 0.1nm FWHM bandwidth
  • Unprecedented insertion loss and PDL
  • Accurate and uniform bandwidth over whole tuning range
  • High out-band suppression
  • High optical power handling
  • Customized versions available on request
  • Manual or Electrical  versions
1.5 micron Fibre Amplifiers Pulsed

Narrow bandwidth Tuneable Filters


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