Red lasers are used for many things in many places across the world. "Laser" is an acronym that stands for Light Amplification by Stimulated Emission of Radiation.

Red Laser Wavelength

Laser color is defined by its wavelength. Red lasers fall in the wavelength range of 635nm to 694nm. Most typical red laser pointers are 670nm.

Red Laser Power Levels

All laser light power levels are defined by watts. Red laser pointers tend to only be in the range of 5 to 10mW. The red laser in a CD player or DVD unit goes much higher, easily 100mW or more. Scientific-grade red lasers can go all the way up to the petawatt range!

Home Use

Red lasers are very common in the home. Home computer CD and DVD ROM drives use red lasers to read or write data to the discs. The average home theater audio receiver most likely has a connection for TOSLINK, which uses red lasers to send and receive high-fidelity digital audio signals.

Law Enforcement and Military Use

Police may use red lasers on their weaponry for increased accuracy. Military personnel may also do this. Another military use for red lasers is to mark a target for bomb runs or missile strikes.

Personal Use

Red lasers can be found for personal use easily, and almost anywhere in the form of laser pointers. These cheap red lasers can be used for business meetings and school presentations, or as a toy to tease a pet cat with.