What Does Blue Laser Mean?

Blue laser is a laser with a shorter wavelength, on the order of 360 to 48 nm of electromagnetic radiation. The shorter wavelength makes it appear blue to the human eye. Blue lasers have a shorter wavelength than the most commonly used red lasers. They can be produced using gases, indium gallium, infrared or diode lasers, all of which operate in the blue wavelength. Blue lasers have a higher storage capacity, and are used in a wide range of applications in telecommunications, computer storage and printing technology.

Techopedia Explains Blue Laser

A laser is a focused beam of light where the beam consists of rays of only one wavelength. The intensity of laser beams is many times higher than that of regular light beams. As photons of a particular wavelength are concentrated to form a laser, it is marked by a distinct color, depending on the wavelength. In the case of blue lasers, this wavelength range exists between 360 and 480 nm.