RS40k Spectrometer
The Redback Systems RS40k is a high-resolution, fibre-coupled echelle spectrometer for precision optical spectroscopy with single-mode fibres. Multiple configurations allow optimisation of spectral bandwidth and resolving power up to R~100,000, with simultaneous broadband coverage across the visible and near-infrared. Its no-moving-parts optical design ensures exceptional stability, while a cooled, science-grade CMOS detector enables high-sensitivity, low-noise measurements. RS40k is optimised for quantum photonics, laser diagnostics, frequency-comb characterisation, and advanced materials spectroscopy.
Broad spectrum and high resolution
Echelle spectrometers use a combination of a grating and a secondary, cross-dispersive element (rotated orthogonally to the echelle grating vector) to highly disperse input light onto a 2D CCD or CMOS array. This architecture enables simultaneous broad wavelength coverage while maintaining high spectral resolution.
The RS40k spectrometer is available in three configurations. The RS40k-SR (Standard Range) provides balanced wavelength coverage and resolution for general-purpose spectroscopy, the RS40k-ER (Extended Range) maximises simultaneous spectral bandwidth, and the RS40k-HR (High Resolution) prioritises maximum resolving power for applications where spectral resolution is the primary requirement.
| Configuration | RS40k-SR | RS40k-ER | RS40k-HR |
|---|---|---|---|
| Detector | sCMOS cooled | sCMOS cooled | sCMOS cooled |
| Wavelength Range | 430-950 nm | 430-1050 nm | 450-800 nm |
| Optical Fibre | S405-XP, 780HP | S405-XP, 780HP | S405-XP |
| Resolving Power | 65,000-40,000 | 55,000-35,000 | 100,000-60,000 |
| Resolution | 7-25 pm (11.3-8.3 GHz) |
8-30 pm (13.0-8.2 GHz) |
4.5-13.5 pm (6.3-6.6 GHz) |
Back-illuminated sCMOS detector
We make deliberate design choices at every optical interface to maximise the total light throughput, which together with the chosen back-illuminated scientific-grade CMOS detector makes for the unrivaled performance of the RS40k under low-light conditions.
Our careful design considerations position the RS40k as a powerful spectroscopy tool in the growing quantum materials R&D sector, to which Redback Systems is particularly committed.
Compact, robust, and portable
A key feature of the RS40k is its compactness and its easy portability. With a footprint comparable to an A4 sheet of paper, the RS40k finds space on any optical table. It can be simply picked up and moved between optical tables and labs, and because the unit is fully contained there is no re-alignment necessary. Moreover, the travel case provided with the RS40k allows for easy transport beyond the lab.
What’s included:
RS40k in Pelican 1520 storage case
24V power supply and IEC cable
USB-C to USB-A 3.1 cable (2 m)
Diamond S-405XP or 780HP single-mode fibre (2 m)
USB flash drive with calibration file, RedSolve, and drivers
CPC-NS2 water cooling connectors (optional)
See an RS40k in your lab?
Request a quote on an RS40k echelle spectrometer by completing the Request a Quote web form. We’ll then email you a quote - no extra steps.