We can fabricate and customize a variety of phosphor-converted laser sources (high or low power) that provide stable long-distance beam illumination for a wide range of applications. A phosphor-converted laser source is ideal for compact and portable optical absorbance, reflectance, and transmission measurements. It can be used for depth and distance measurement (e.g, LIDAR) and is considered eye-safe compared to standard lasers. It consumes significantly less electrical power and generates less heat and more infrared optical output compared to traditional IR LEDs and laser sources. Such devices can also have multitude of uses in night vision detection, infrared scene projection, as well as medical & biological imaging.
Different wavelengths of infrared light serve different purposes. Conventional IR lasers are used for fiber optic communications at wavelengths of 1310nm, 1550nm, and 1625nm. IR lasers around 1480nm are also used as pump sources for optical amplifiers. Conventional IR lasers produce a coherent narrow-band light via light amplification by stimulated emission of radiation. Phosphor-converted IR lasers are non-coherent and can deliver narrow-band, multi-band, or broadband beams of light while significantly expanding the available spectral range or colors of conventional laser sources.
A phosphor-converted laser device can also deliver white light with high color rendition (CRI>90) and a wide range of correlated color temperatures (CCTs), in addition to non-visible infrared radiation. The non-visible light can be in the near-infrared covering the 700-1100nm parts of the electromagnetic spectrum, as shown below. Both the visible and IR parts of the spectrum can also be customized with SWIR emission between 1150-1700nm using various IR phosphor materials.
The design flexibility offered by phosphor-converted infrared laser technology also makes it an attractive option for use in free space optics, night vision, infrared scopes, remote communication, atmospheric science, and multispectral (MSI) or hyperspectral imaging.
Example of a phosphor-converted infrared laser module with emission between 700-1100nm