The SuperK VARIA is a cost effective and flexible alternative to a monochromator, effectively turning the SuperK supercontinuum laser into a powerful single-line laser with a 440 nm tuning range and variable bandwidth. The center wavelength of the pass band can be tuned anywhere between 400 and 840 nm and the bandwidth is variable between 10 and 100 nm.

The SuperK VARIA is designed to be used with the SuperK supercontinuum sources, but can also used with traditional laser systems or broadband light sources. Use the collimated free-space output from the filter directly or combine the VARIA with the SuperK CONNECT broadband fiber delivery system for pristine single-mode fiber delivery over the entire tuning range in one single fiber.

Increasing the bandwidth of the filter has the added advantages of higher power throughput and reduced speckle in imaging applications. Moreover, a high out-of-band suppression of up to 50dB makes the SuperK VARIA an ideal tool for FLIM and other applications using high sensitivity detectors.


  • 400 – 840 nm wideband coverage
  • 10 – 100 nm variable bandwidth, for higher power and reduced speckle
  • >50 dB suppression of out-of-band light
  • High transmission (no polarization loss)
  • Handles high average power
  • Single-mode fiber delivery
  • Available with Power Lock active output power stabilization
  • Fully computer controlled

SuperK VARIA wavelength filtering


SuperK VARIA Datasheet


This product is manufactured by NKT Photonics.

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