Meet the NEXOS™, the next-generation photonics backbone spectrometer designed to empower a wide range of applications in various industries. This device is manufactured with Avantes’ newest automation techniques to ensure superior inter-instrument reproducibility. Discover how this innovative spectroscopy instrument will empower your application!

Compact Size, Limitless Possibilities

Avantes’ NEXOS™ is a lightweight, and powerful spectrometer optimized to deliver high-end performance for spectroscopy integration. The spectrometer offers high-speed performance, with integration times of up to 9 μs, minimal stray light as low as 0.1%, and a strong signal-to-noise ratio of 375:1.

The NEXOS™ is compatible with Avantes light sources, accessories, and AvaSoft software, enabling users to customize their setups to suit their measurement requirements.

This powerful and versatile spectrometer is available with USB2 communication. Other communication protocols (e.g., RS232/SPI) optimized for Original Equipment Manufacturer (OEM) applications are also available. This device can be customized to your needs using six different slit sizes and more than 15 types of gratings. The replaceable slit option is standard for Non-OEM.

This spectroscopy instrument is highly suitable for OEM applications and can be combined with our Software Development Kits (AvaSoft). Thanks to the automation of our manufacturing process, Avantes can produce high volumes of the NEXOS™ spectrometer more efficiently and faster with very high accuracy and reproducibility.

Want to learn more about how this innovative spectroscopy instrument can empower your application?  Please contact us!

Request more info

Product Variations

Besides the USB-powered NEXOS™, we also introduce the NEXOS™-Link and NEXOS™-Bench Only. The Link version offers different communication protocols for OEM customers (RS232 or SPI). The Bench Only version is optimized for easy implementation on the customer’s own electronic board – or Avantes’ AS7010 electronic board.

NEXOS USB connector
NEXOS Link connectors
NEXOS BO connectors
Specifications NEXOS™
Specifications NEXOS™ Link
Specifications NEXOS™ BO

Product Information

NEXOS™ 2K NEXOS™ 4K
Optical bench Symmetrical Czerny-Turner, 75 mm focal length; spectrometer bench Symmetrical Czerny-Turner, 75 mm focal length; spectrometer bench
Wavelength range 190-1100 nm 190-1100 nm
Stray light 0.1-1% (typical value 300l/mm, blaze 300 nm < 0.3%) 0.1-1% (typical value 300l/mm, blaze 300 nm < 0.3%)
Detector HAM S11639, CMOS linear array, 2048 pixels (14 x 200 µm) HAM S13496, CMOS linear array, 4096 pixels (7×200µm)
Signal/noise 375:1 365:1
Dynamic Range 4500 4500
Dark noise 15 cnts 15 cnts
AD converter 16 bit, 6 MHz 16 bit, 6 MHz
Integration time 9 µs-30 sec 9 µs-30 sec
Interface USB 2.0 (480 Mbps), pigtailed (38 cm) USB-A USB 2.0 (480 Mbps), pigtailed (38 cm) USB-A
Sample speed with on-board averaging 0.36 ms/scan 0.70 ms/scan
Data transfer speed 0.79 ms/scan 1.12 ms/scan
Digital I/O 5 bidirectional programmable I/O; 1 Analog out, 1 Analog in, 1x5V 5 bidirectional programmable I/O; 1 Analog out, 1 Analog in, 1x5V
Power supply Default USB power, 500 mA Default USB power, 500 mA
Dimensions, weight 105 x 80x 20 mm, 277,5 grams 105 x 80x 20 mm, 277,5 grams
Operating temperature range 5-55°C 5-55°C
Use Useable range (nm) Spectral range (nm) Lines/mm Blaze (nm) Order code
UV/VIS/NIR 190-1100** 910** 300 300 MN0300-0.30
UV/VIS 190-780 544-540* 600 300 MN0600-0.30
UV 190-532 261-256* 1200 250 MN1200-0.25
UV 190-472 168-152* 1800 UV MN1800-0.25
UV 190-423 121-103* 2400 UV MN2400-0.25
UV 190-337 72-57* 3600 UV MN3600-0.25
UV/VIS 280-852 536-532* 600 400 MN0600-0.40
VIS/NIR 300-1100** 800** 300 500 MN0300-0.50
VIS 350-959 529-519* 600 500 MN0600-0.50
VIS 320-776 247-216* 1200 500 MN1200-0.50
VIS 360-641 147-121* 1800 500 MN1800-0.50
VIS 360-489 96-89* 2400 VIS MN2400-0.50
NIR 480-1066 515-506* 600 750 MN0600-0.75
NIR 500-1050 210-160* 1200 750 MN1200-0.75
NIR 600-1100 339-300* 830 800 MN0830-0.80
NIR 600-1100** 500** 300 1000 MN0300-1.00
NIR 600-1100 500 600 1000 MN0600-1.00

A selected set of possible start-stop ranges apply. Please contact us to discuss your options. * Depends on the starting wavelength of the grating; the higher the wavelength, the bigger the dispersion and smaller the range to select ** Please note that not all pixels will be used for the useable range

Slit size (µm) 10 25 50 100 200 500
FWHM in nm
2K resolution
300 lines/mm grating 1.0 1.4 2.25 4.8 9.2 21.3
600 lines/mm grating 0.40-0.53* 0.7 1.2 2.4 4.6 10.8
830 lines/mm grating 0.32 0.48 0.93 1.7 3.4 8.5
1200 lines/mm grating 0.20-0.28* 0.27-0.38* 0.52-0.66* 1.1 2.3 5.4
1800 lines/mm grating 0.10-0.18* 0.20-0.29* 0.34-0.42* 0.8 1.6 3.6
2400 lines/mm grating 0.09-0.13* 0.13-0.17* 0.26-0.34* 0.44-0.64* 1.1 2.7
3600 lines/mm grating 0.06-0.08* 0.10 0.19 0.4 0.8 1.8
4K resolution
300 lines/mm grating 0.50-0.70 1.4 2.25 4.8 9.2 21.3
600 lines/mm grating 0.30-0.36* 0.7 1.2 2.4 4.6 10.8
830 lines/mm grating 0.25 0.48 0.93 1.7 3.4 8.5
1200 lines/mm grating 0.14-0.18* 0.27-0.38* 0.52-0.66* 1.1 2.3 5.4
1800 lines/mm grating 0.09-0.11* 0.20-0.29* 0.34-0.42* 0.8 1.6 3.6
2400 lines/mm grating 0.07-0.09* 0.13-0.17* 0.26-0.34* 0.44-0.64* 1.1 2.7
3600 lines/mm grating 0.05-0.06* 0.10 0.19 0.4 0.8 1.8

*Depends on the starting wavelength of the grating; the higher the wavelength, the bigger the dispersion and the higher the resolution.

AvaSpec-NXS2048CL Compact fiber-optic spectrometer, 75 mm focal length, 2048 pixel CMOS detector, USB 2 powered interface, needs DCL, second order suppressing, replaceable slit
AvaSpec-NXS4096CL Compact fiber-optic spectrometer, 75 mm focal length, 4096 pixel CMOS detector, USB 2 powered interface, needs DCL, second order suppressing, replaceable slit
*OEM AvaSpec-NXS2048CL OEM Compact fiber-optic spectrometer, 75 mm focal length, 2048 pixel CMOS detector, USB 2 powered interface, needs DCL, second order suppressing, fixed slit
*OEM AvaSpec-NXS4096CL OEM Compact fiber-optic spectrometer, 75 mm focal length, 4096 pixel CMOS detector, USB 2 powered interface, needs DCL, second order suppressing, fixed slit
SLIT-XX-PRS Replaceable Slit for non OSF configurations. Slit size, please specify XX = 10, 25, 50, 100, 200, 500 µm Slit size, please specify XX = 10, 25, 50, 100, 200, 500 µm
SLIT-XX-PRSF Replaceable Slit for OSF configurations. Slit size, please specify XX = 10, 25, 50, 100, 200, 500 µm
*SLIT-XX-P Fixed Slit for NEXOS. Slit size, please specify XX = 10, 25, 50, 100, 200, 500 µm
OSC Order sorting coating for grating MN 0600-0.50 and MN 0600-0.40 (>350 nm)
OSC-UA Order sorting coating for grating MN 0300-0.30 / MN 0300-0.50
OSC-UB Order sorting coating for grating MN 0600-0.30 and MN 0600-0.40 (<350 nm)
OSF-YYY-3 Order sorting filter for reduction of second-order effects, please specify YYY = 305, 395, 457, 515, 550 or 600 nm, depends on range
DCL Detector Collection Lens. To be included

* Only for OEM customers Avantes will select needed second order suppression based on desired configuration.

Need support or advice?

  • Feasibility Studies: Our knowledgeable sales engineers conduct complimentary feasibility studies to identify the most suitable measurement setup for your needs.
  • Demo Program: Experience our products firsthand with our demo program, allowing you to test our offerings for free and find the ideal solution for your application.
  • Support Team: Our dedicated support team is available around the clock to ensure you receive top-notch service.

Contact us!

VARIUS™ Spectrometer

More information

Original Equipment Manufacturer (OEM)

More information

Spectrometers

More information

AvaSoft Software

More information