UV Tunable Light Source


Fast Scanning, Quick Output Wavelength Selection, and Custom Monochromator

TLS-EQ-77-UV tunable light source provides monochromatic light in the ultraviolet (UV) wavelength range.

The TLS-EQ-77-UV is built around the EQ-77 Laser-Driven Light Source (LDLS®) and utilizes a customized monochromator that is matched to the optical characteristics of the LDLS. The system includes a software interface that allows rapid selection of output wavelengths and fast scanning between selected wavelengths.

The high radiance of the LDLS allows more light to be efficiently coupled through a narrow monochromator slit. This means that more light flux can be delivered within a narrow bandwidth than is possible with other tunable light sources.

A user-friendly software interface is provided to enable the selection of output wavelengths as well as the scanning speed between selected wavelengths.


Fast wavelength tuning
High spectral resolution
Low noise & high stability
User-friendly computer interface
Convenient optical fiber output
Aberration free collection and focusing

In-Band Light Flux Comparison

Average in-band light flux with standard output fibers. For reference only.

Wavelength Range
200 nm – 800 nm
Wavelength Accuracy
+/- 0.5 nm
Scan Speed
<20 ms for a 2 nm step
Output Type
600 µm fiber​ optic cable
Numerical Aperture
0.22 NA
Spectral Resolution (bandwidth. FWHM)
4.7 nm
Laser Class
Class 1 (IEC 60825: 2014)
Typical Performance
Maxiumum In-Band Flux
1.6 mW at 300 nm
Average In-Band Flux
~1.1 mW (200 nm - 500 nm)


TLS Selection Guide [PDF]

Virus and Bacteria Deactivation Research with Energetiq Tunable Light Sources [App Note]

LDLS™ Powered Tunable Light Source with Far-UVC Output [App Note]



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