Company

Quantum Light Instruments, Ltd. (legal name is UAB “Quantum Light Instruments”) is privately owned limited liability company located in Vilnius, capital city of Lithuania. We turn over 40 years of laser and photonics accumulated expertise into powerful, compact and reliable diode pumped light sources for science and industry.
Founded in Vilnius, Lithuania 2014. Our team of passionate engineers and laser scientists is dedicated to redefining performance and simplicity in DPSS nanosecond lasers.

Compact, High Energy, and Water-Free.

We design and manufacture diode-pumped solid-state (DPSS) lasers that combine high pulse energy, stability and ease of use.
Our Nd:YAG and Nd:YLF pulsed lasers are available in both actively and passively Q-Switched versions, providing pulse energies up to 200 mJ at repetition rates between 10–100 Hz.
At the heart of every QLI laser is our high energy air-cooled (water-free) technology – a breakthrough cooling approach that eliminates the need for chillers or complex plumbing. This innovation enables compact, single-box laser systems that are truly plug-and-play, maintenance-free and ready for demanding environments.

Tunable Wavelengths and Application-Driven Laser Solutions.

From spectroscopy labs to field applications.
Our Q-TUNE series tunable wavelengths lasers for spectroscopy deliver a wide wavelength tuning range from 210 nm to 4500 nm, enabling advanced optical research and materials analysis.
We also offer pulsed lasers for LIBS and LIDAR applications — robust, reliable sources for remote sensing, elemental analysis, and environmental monitoring.
In addition to laser heads, we provide a full range of accessories, including harmonic generators(up to 5th Harmonic generator), OPOs, Raman shifters, attenuators, energy monitors, and fiber coupling modules. Our harmonic generators can extend output into the deep UV region down to 211–213 nm.

At Quantum Light Instruments, we believe innovation begins with listening. Every customer request helps us refine and improve our technology.
Whether you need a compact DPSS nanosecond laser for laboratory research or a custom high-energy system for industrial integration, our team is ready to tailor solutions that fit your exact needs.