The VIS-NIR fibered spectrometers
Ultra-broadband spectral range: 350-2600

Our VIS-NIR are ultra-broadband spectrometers designed for use with fibered probes over the complete VIS & NIR spectral range, 350-2600nm or 200nm-2600nm. The system incorporates one Arcoptix FT-NIR Fourier-Transform scanning spectrometer for the NIR range 900-2600 and one multichannel grating spectrometer for the VIS (350-1000nm). Both instruments are integrated in a single, portable housing that has two separate SMA inputs for the UV-VIS and for the NIR ranges, matching the transmission ranges of high-OH and low-OH fibers. The software supplied with the spectrometer automatically merges the spectra produced by the 2 spectrometers.

Unlike most scanning spectrometers used for such applications that take several minutes for a complete scan, the  VIS-NIR (350-2600nm) give a result within two seconds! The software can be customized on demand for specific colorimetric or other standard measurements. Please contact us for more information:

PRICE only 20'900 EUR! (with software)
  • Ultra-broad spectral range: 350-2600 or (optionally 200nm-2600nm)
  • Very good resolution(<5nm)
  • Operation via optical fibers
  • Fast measurements (down to 2 seconds)
  • No fix pattern noise (as in the case of grating NIR spectrometer)
  • Very easy to use
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optionally UV-VIS-NIR
Main charactiorisic Smaller Spetral range, Better SNR in the VIS range (350-1000nm)

Larger spectral range. Reduced SNR in the VIS Range (up to 5x lower in the 800-1000nm range) dur to grating efficiency. Not recommended if UV is not absolutely necessary.

Spectral range


UV-VIS spectrometer

Dispersive spectrometer with a silicon array detector (3648 pixels) 16-bit ADC

Spectral range: 350-1000nm
Best efficiency (>30%): 350-850nm (see graph below)

Dispersive spectrometer with a silicon array detector (3648 pixels) 16-bit ADC.

Spectral range: 200-1025nm
Reduced efficiency (see graph below)

NIR spectrometer

Fourier-Transform NIR spectrometer with extended range InGaAs photodiode, 24-bit ADC, Spectral range: 900-2600nm (uncooled version) or 900-2500nm (2TE cooled).

Fiber inputs

2x SMA-905 (one for UV-VIS, one for NIR)

Minimum measurement time

<2 seconds

SNR (Full dynamic range- 5 sec measurement, Halogen lamp directly attached)

>1’000:1 (UV-VIS) @ 600nm

>10'000:1 (NIR) @ 2000nm

Notice that (due to poor sensitivity of Si and InGaAs detectors) the SNR is up to 10x lower in the overlap region from 900 to 1100 nm.

Software interface
Windows 7 / 10

Operating voltage (power)

12V / 10W
(line power adaptor 100-240V included)

Communication Interface

USB 2.0

Product Dimensions

220mm x 180mm x 80mm

Product Weight


Operating Temperature

5°C – 35°C


Efficiencies of VIS and UV-VIS spectrometer gratings

The VIS-NIR (350-2600nm) and the UV-VIS-NIR (200-2500nm) not only differ by their spectral ranges, but also by the efficiency of their grating in the VIS or UV-VIS spectral range. The VIS-NIR offers a better efficiency the range 350-1000nm, while the UV-VIS is ratehr optimized for the UV but has lower performance in the VIS range. if UV is not needed, we recommend strongly to tke the VIS-NIR spectrometer option which gives much better better results in particular in 700-1100nm spectral region.

Features and benefits
Fibered spectrometer with the broadest available spectrum 200-2600nm

The UV-VIS (350-2600nm) are the fiber-input spectrometers covering the broadest spectral range on the market.

Best of two worlds

The use of an Fourier-transform spectrometer for the NIR and a grating spectrometer for theUV and VIS is the best solution for a fast and reliable broadband spectrophotometer.:

  • For the VIS range the most performant solution is the multichannel dispersive spectrometer with a Si-diode array. This solution offers fast measurement times, high sensitivity and good resolution at a moderate cost.

  • For the NIR spectral range, the scanning Fourier-transform spectrometers produced by Arcoptix are superior to photodiode-array based grating spectrometers. Indeed dispersive spectrometers are based InGaAs photodiode arrays that suffer from various noises and distortions due to the pixel variability and usually cannot reach wavelegnths beyond 2300nm.
Free software

The UV-VIS (350-2600nm) are delivered with a free Windows compatible graphical user interface (GUI) program. The software automatically merges the spectral data from the UV-VIS and NIR spectrometers.

The free basic software package allows the user to:

  • Configure hardware measurement parameters (amplifier gain, averaging, ...)
  • Display real-time spectral measurement results
  • Set reference spectra (white, dark) and choose among raw spectra, transmission or absorption modes.
  • Usual features such as save, open, zoom, rescale...
  • Save data of combined UV-VIS-NIR spectra, or individual UV-VIS or NIR spectra

The UV-VIS (350-2600nm) are compatible with many fiber-based accessories available on the market. Attention must be paid to the fact that the spectral range of the accessories covers the full VIS-NIR or UV-VIS-NIR spectrum. The illustrations below show two typical arrangement for measuring in diffuse reflectance and in transmission modes with the UV-VIS-NIR (200-2600nm)

Transmission mode

The ARCspectro VIS-NIR is the ideal spectrometer for measuring the transmission of samples all over the UV to NIR range. Accessories needed for this configuration are:

  • (1) one UV-Vis-NIR light source, typically a deuterium + halogen light source (e.g. a DH-MINI or DH-2000)
  • (2) one UV-Vis-NIR fiber patch cable (e.g. our FIB-UVN-600-050)
  • (3) one UV-Vis-NIR cuvette holder (e.g. CUV-UV) with UV-compatible cuvetted made of quartz glass
  • (4) one Y-branched fiber bundle with 1x UV-VIS and 6x Vis-NIR 200μm core diameter fibers (included with the UV-VIS-NIR spectrometer)
Reflection mode

The VIS-NIR can also be used for reflection measurements, e.g. using a fibered reflection probe.Accessories needed for this configuration are:

  • (1) one UV-Vis-NIR light source, typically a deuterium + halogen light source (e.g. DH-2000)
  • (2) one Y-branched fiber bundle with 7x UV-VIS-NIR, 600μm core diameter fibers
  • (3) one Y-branched fiber bundle with 1x UV-VIS and 6x Vis-NIR 200μm core diameter fibers (included with the UV-VIS-NIR spectrometer)
  • (4) if needed, one diffuse reflectance standard (not shown)
  • (5) if needed, a reflection probe holder/stand (not shown)

Non- Exclusive Distributor List for Spectrometers
France, Germany
Italy, UK
South Korea
Switzerland and
Rest of the world
DOWNLOAD pdf Description of Arcspectro VIS-NIR