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PRODUCT

SuperK VARIA Tunable Filter

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, making the SuperK VARIA the most flexible filter solution on the market.

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.

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.

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Features

  • 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

specifications

Optical
Wavelength Tuning Range 400 – 840 nm
Minimum Bandwidth  FWHM
Maximum Bandwidth FWHM 100 nm
Transmission Through Module  (Average in 50nm bandwidth) 70-90 % (Un-polarized)
Upper Out of Band Sansmission Wavelength in 400-900 nm range)* > 50 dB
Lower Out of Band Suppression (10nm Below Lower FWHM Transmission Wavelength in 400-900 nm range)* > 40 dB
Output Polarization Un-polarized or P-Polarized (adding output polarizer)
Tuning speed > 10 nm/s
Repeatability of Wavelength Position** < 0.2 nm
Absolute Wavelength Accuracy +/- 5 nm
Wavelength Temperature Sensitivity < 0.05nm/deg
Transmission Temperature Sensitivity < 0.2 %/deg
Interlock Collimator, lead
Output Mode Collimated free-space or SuperK CONNECT with FC-APC
Mechanical
Weight 7.9 kg
Dimensions (LXBXH) 272X211.5X67.6 mm
Electrical Interface SuperK BUS interface
Analog feedback signal
Environmental
Operating Temperature Range 15-30 °C
Storage Temperature Range 5-50 °C (non condensing)
Humidity 20-80 % RH

* With SuperK CONNECT single mode fiber delivery.
** With collimator inserted. Wavelength position may shift if collimator is removed and reinserted.

Manufacturers

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Document

SuperK VARIA tunable filter Datasheet

Industries

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Methods

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