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XWS

Powerful light sources XWS-M150 and XWS-M266, tunable in 190-2500nm range

Model XWS

Powerful light sources XWS-M150 and XWS-M266, tunable in 190-2500nm range XWS
FEATURES

XWS are compact, easy-to-use, powerful and efficient tunable light sources, tunable in the spectral range from 190nm to 2500nm with continuously adjustable bandwidth.

  • Optical power – milliwatts at 6 nm of output bandwidth;
  • Power density up to 60µW/(nm*mm2);
  • Spectral resolution up to 0.5nm;
  • Laser pumped plasma broadband light source XWS-65;
  • Light source lifetime >10000 hours;
  • Automated monochromator М150 or M266 with astigmatism compensation;
  • Focusing and collimating optics, optical fiber coupling options, etc.
XWS
DESCRIPTION

XWS-Т150 and XWS-Т266 are developed based on new ultra-bright laser pumped plasma sources XWS-65 from “Isteq B.V.” and already established wide-aperture automated monochromators M150 and M266 produced by SolarLS.

Spectral power density of the XWS-M150 in 200-1100nm range.(Monochromator М150 with diffraction gratings 1200 grooves/mm blazed at 250nm and 300 grooves/mm blazed at 500nm)

Spectral power density of the XWS-M150 in 200-1100nm range.
(Monochromator
М150 with diffraction gratings 1200 grooves/mm blazed at 250nm and 300 grooves/mm blazed at 500nm).

Such unique features as high power density in a wide spectral range, including the UV range of 190 nm, as well as long-term stability and long service life, make the XWS an essential and unprecedented device for metrological applications.

Modern laser-pumped plasma light sources XWS-65 have undeniable advantages over common discharge lamps: spectral brightness and spatial-temporal stability are several times higher, and lamp lifetime is an order of magnitude longer.

The choice of monochromator (compact M150 or high-resolving M266) allows optimizing optical power, spectral resolution, as well as the degree of automation and price range.

Both monochromators feature Imaging optics for astigmatism compensation. The M266 monochromator is fully automated, contains up to 4 diffraction gratings and has a focal length twice as high as of M150. Therefore, M266 provides twice better spectral resolution, or, for the selected spectral range, it allows to open the slit 2 times wider and thus increase the optical output power 4 times compared to M150.

Xenon arc lamp spectrum

The M150 monochromator is compact and wide-aperture; it can be supplied with 1, 2 or 3 diffraction gratings. For both monochromators, it is possible to supply either automated input and output slots, or a set of fixed-width slots with a manual shift.

The spectral characteristics of the tunable XWS-M150 and XWS-M266 light sources depend on the selected diffraction gratings (see the Specification).

APPLICATIONS

Tunable light source of the XWS series cover a large field of possible scientific, research and OEM applications:

  • Spectrometry and fluorimetry
  • Metrology
  • Photochemistry and photobiology
  • Tunable illumination
  • Photovoltaics
  • Microscopy, etc.
SPECIFICATIONS
Tunable light source XWS-Т150 XWS-Т266
Spectral range of operation 190-2500 nm
Monochromator model M150 M266
Focal length of the monochromator 142 mm 284 mm
F/# 1:3.6 1:3.8
Light source XWS-65
Spot size on the entrance slit of the monochromator 500 µm 500 µm
Optical output —  direct output through exit slit,
—  optical fiber output (output)
—  collimated output beam acquired with a 2-lens achromatic objective (option)
Maximum output power Up to 3 mW at 6nm output bandwidth
(depends on the monochromator type and the selected grating)
Spectral power density Up to  60 µW/nm*mm2
Output bandwidth (FWHM) 1 nm…180 nm 1) 0.5 nm…90 nm 1)
Wavelength reproducibility 0.02 nm – 0.1 nm
(depends on the selected grating)
Scanning speed 16 nms – 300 nms
(depends on the monochromator type and the selected grating)
Filter wheel — Automated 8-position filter wheel with 5 standard absorbing filters for the range 190-1620nm
— Optional Si filter for the range 1000-2000 nm (filter transmits light up to 2500 nm)
Interface type USB
Dimensions XWS-M150: 458 x 292 x 220 mm
XWS-M266: 530 x 490 x 250 mm

1) Depends on the monochromator type, selected grating and slits opening width

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