Green Laser Technology Can Enhance The Future
By Richard West

Infrared lasers are a type of electromagnetic radiations having a wavelength larger than visible light and wavelength shorter than microwave radiation. Infrared lasers are the key light suppliers for optical fiber communication systems. They are also considered as the best option for typical silica fibers with their wavelengths of 1,330 nm or 1,550 nm. Other major applications of infrared lasers are in cutting, welding, and engraving of hard materials. Because of their ability to provide high power and fine band tunable light, they are widely used in photo acoustic (PA) techniques. Recently carbon dioxide and carbon monoxide lasers are used as light sources in PA detection of gases because of their high power.

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