Laser-Driven Tunable Light Source 

The TLS-EQ-77 is a tunable light source optimized to provide monochromatic light across a broad wavelength range.

The TLS-EQ-77 is built around the EQ-77 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.



Wavelength Range 350 nm – 1100 nm
Wavelength Accuracy +/- 0.5 nm
Scan Speed <20 ms for a 2 nm step
Output Type 1500 µm fiber​ optic cable
Numerical Aperture 0.39 NA
Spectral Resolution (bandwidth, FWHM) 6.5 nm
Laser Class Class 1 (IEC 60825: 2014)


Typical Performance
Maximum in-band flux​ 4.9 mW at 400 nm
Average in-band flux ~2.3 mW


In-Band Light Flux Comparison

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

TLS Spectral Flux Graph Feb 2021