Classification of optical components

Lasers are classified into solid-state lasers, sale of custom optical prism assemblies, dye lasers, semiconductor lasers, optical components, and free-electron lasers, depending on the working medium. There are many subdivisions of solid-state lasers and optical components. An optical component is a laser that uses gas as a gain medium, typically pumping a gas discharge. The gas types include atomic gases (helium lasers, inert gas ion lasers, metal vapor lasers), molecular gases (nitrogen lasers, carbon dioxide lasers), excimer gases, and special procurement high efficiency optical window components that provide pumping energy through chemical reactions. Optical components can generally be divided into the following types: HeNe laser (HeNe) is a mixed medium of 75% or more of He and 15% or less of Ne, and can emit green (543.5nm), yellow (594.1nm), and orange (612) depending on the working environment. .0 nm), red (632.8 nm) and three near-infrared light (1152 nm, 1523 nm and 3391 nm), of which red light (632.8 nm) is most commonly used. The beam outputted by the HeNe laser is Gaussian, and the beam quality is very stable. Although the power is not high, it has a good performance in the field of precision measurement. Common for inert optical components are argon ions (Ar+) and strontium ions (Kr+). Its energy conversion rate is up to 0.6%, and it can continuously output 30-50w of power continuously for a long time, and its service life exceeds 1000h. Mainly used in laser display, Raman spectroscopy, holography, custom LiF optics and other research fields as well as medical diagnosis, printing color separation, measurement and measurement material processing and information processing. Metal vapor lasers are exemplified by copper vapor. The copper vapor laser mainly outputs green light (510.5 nm) and yellow light (578.2 nm), which can reach an average power of 100 W and a peak power of 100 kW. Its main application area is the pump source of dye lasers. In addition, it can also be used for high-speed flash photography, large-screen projection TV and material processing. The nitrogen molecular laser uses nitrogen as a gain medium to emit ultraviolet light of 337.1 nm, 357.7 nm, and 315.9 nm, and the peak power can reach 45kw. It can be used as a pump source for organic dye lasers, and is widely used in laser separation isotope, fluorescence diagnosis, ultra-high speed photography, pollution detection, medical and health, and agricultural breeding. It can also be used to process sub-micron-sized components because its short wavelengths are more easily focused to obtain small spots. The gain medium used in the carbon dioxide laser is carbon dioxide mixed with helium and nitrogen, and can output far-infrared light centered at 9.6 μm and 10.6 μm. Carbon dioxide lasers have high energy conversion rates, output powers ranging from a few watts to tens of thousands of watts, and the extremely high beam quality makes CO2 lasers widely used in materials processing, research, defense, and medicine.