CO2 laser, also known as carbon dioxide laser, is a type of laser technology that uses a gas mixture of carbon dioxide, helium, and nitrogen as the lasing medium. It emits infrared light at a wavelength of 10.6 micrometers, which is highly absorbed by organic materials, making it a versatile tool for various applications in industries such as cutting, engraving, welding, and medical procedures. CO2 lasers are widely used in industrial manufacturing for precision cutting and welding of materials like metals, plastics, and ceramics. They are also used in medical surgery for treatments such as skin resurfacing, dermatology, ophthalmology, and gynecology. Overall, CO2 lasers offer high efficiency, precision, and versatility, making them a popular choice for a wide range of applications in various industries.