Laser is light that is amplified by absorbing radiant energy. A laser is a device that generates and amplifies a laser beam. All lasers contain three components: pump source, excited medium, and resonant cavity.
The principle of laser:
The pump source supplies external energy to the laser, and the excited medium is located inside the laser, depending on different laser structural designs. The laser medium may be a gas mixture, a crystal rod, or a glass fiber. When the laser medium receives energy supply from an external pump source, it is stimulated to produce energy radiation. The excited medium is located in the middle of the two mirrors at both ends of the resonant cavity. One of the mirrors is a one-way lens. The energy radiation generated by the excited medium is amplified in the resonant cavity. At the same time, only a specific type of radiation can pass through the one-way lens to form a beam of radiation, which is a laser.
- Vehicles and transportation
The requirements for vehicles and transportation are firmness, high precision, stability, safety, intelligence and environmental protection. Laser welding is continuous and efficient. The firmness and lightness of laser welding technology can improve the degree of body integration; the high precision and high efficiency of laser welding technology can improve efficiency in production while ensuring its safety and stability.
- Laser communication
Laser communication is a high-speed, reliable, and highly accurate wired communication technology. Laser communication technology has the advantages of strong anti-interference ability, high security, high communication rate, fast transmission speed, convenient band selection and large information capacity. It is characterized by small system size, light weight, low power consumption, simple construction, and flexibility. It has significant strategic needs and application value in both military and civilian fields.
- Industrial processing
The emergence of laser processing technology is a technological change that has a significant impact on traditional processing technology and processing methods. It is soon widely used in important industries of the national economy such as automobiles, electronic appliances, aviation, metallurgy, and machinery manufacturing, and promotes the rapid development of industry. , and produced huge economic benefits.
Of course, the application of lasers goes far beyond this. The application of lasers in various fields has shown an upward trend year by year, and has broad market prospects.