Laser-based White Light Source

Download Laser-based White Light Source Datasheet (PDF, 496 KB)

Solid-state laser-based white light sources (LWLS) is a new type of light-emitting devices that generate high intensity white light by means of wide-spectrum luminophore excited by blue laser diodes. Converted white light is non-coherent and safe for human eyes. Tydex commenced development of solid-state laser-based white light sources in the end of 2019.

Best luminophore to be used in LWLS is cerium-doped monocrystalline yttrium aluminium garnet (YAG). To achieve efficient heat rejection, the luminophore is soldered onto a copper conductor.

Laser-based White Light Source Fig. 1. LWLS: principle of operation

Luminophore radiates under pumping with a laser diodeFig. 2. Luminophore radiates under pumping with a laser diode

LWLS moduleFig.3. LWLS module

Technical characteristics of LWLS module

Waterproof enclosure, rating IP67

Radiation power 1.8–2,2 W
Radiation wavelength range 450–700 nm
Luminous flux 400–500 lm
Beam divergence 60 °
Dimensions diameter 30 mm
height 50 mm
Operating current 2.5–3.0 А
Operating voltage 3.6–4.8 V
Operating temperature 0 ~ + 65 °С
Storage temperature -40 ~ + 85 °С

Alternate module design is available on demand, with radiation power output of 4.0 – 5.0 W and luminous flux of 800 – 1000 lm at the cost of double power consumption.

LWLS provides luminosity, efficiency and durability surpassing that of xenon lamps. LWLS can be used as a basis for development and full-scale production of new generation of searchlights, street lamps and other lighting fixtures.

Combining white and infrared light sources in a single package, one gets a promising component for development of novel safe driving aids, self-driving cars and unmanned aerial vehicles, portable lights, rangefinders and security system elements.