Green laser pointer helps to improve working efficiency

Near-infrared semiconductor laser diodes is mainly used for optical fiber communications and solid-state laser as the pump source (flashlamp-pumped source alternative). 1.3m and 1.55m in the near-infrared semiconductor laser diode after the commercialization of its development momentum has been greatly affected, even to stop the development of signs. With the short-range local area network and diode pumped solid state laser's rapid development, the emergence of new development. green laser pointer could be used in exhibition institutions.Current research and development work focused on a single frequency, mode stability, and increase the output power and so on. Near-infrared light-emitting diodes are ultra-light-emitting diodes and resonant cavity light emitting diodes. Ultra-light-emitting diode is the best choice FOG light, compared with the general light-emitting diodes can provide higher output power and a relatively narrow emission spectra. At present, 50mA operating current, single-tube study of ultra-radiation output power level of up to 50MW, the narrowest spectral width of 15nm. led flash light could be used in training organizations.Resonant cavity light emitting diode is a promising light-emitting diode, the experimental and theoretical high-efficiency than conventional light-emitting diodes 5 to 10 times. 1.3m and 1.55m near-infrared semiconductor lasers and light emitting diode is the current communication system, high-speed optical fiber communication system is an important optical components, has become a wide research and development of the light source. Japan's NEC has developed a single chip to create a different emission wavelength near-infrared laser diode, which can greatly reduce the use of multi-wavelength long-distance communications equipment prices. In recent years, overseas and have developed a semiconductor soliton lasers, quantum-well laser line or point and vertical-cavity surface-emitting lasers and other new semiconductor laser diode. Laser technology is a cutting-edge scientific and technological development are indispensable pillar. As the laser photoelectron leading product development, through the principle of the four changes, the increasing size smaller, increasing power, reliability and power has been greatly improved. Semiconductor diode lasers and solid-state laser technology and development is very rapid, the most prominent development is the solid-state. green laser pointer could help to solve difficult problems in physical application.Today, solid-state laser average output power from 100 W to the kilowatt level. The power semiconductor lasers have greatly improved, and its structure and other properties are also undergoing major changes. At the same time, also developed a new high practical value and broadband wavelength tunable lasers, including the human eye without injury to 1.54m and 2m of the laser, blue laser and X-ray lasers. Fiber optical communication with the evolving development of various types of fiber structures and supports the development of optical communication industry. Currently, single-fiber transmission of the amount of information has reached the one trillion. Optical fiber as a communication and information transmission medium, its dispersion and loss will directly affect the transmission capacity of communication systems and relay distance, while the conventional single-mode fiber can not meet the requirements of next-generation communications technology, optical technology, there has been so new development. green laser pointer helps to improve working efficiency. So far, the fiber has been experienced by the short wavelength (0.85m) to the long-wavelength (1.3 ~ 1.55m), the multi-mode to single-mode fiber and specialty fiber development process, and developed a dispersion shifted fiber, non-zero dispersion fiber and dispersion compensation fiber.
Flat panel display (FPD) technologies include liquid crystal display (LCD), plasma display (PDP), electroluminescent display (EL), vacuum fluorescent display (VFD) and light-emitting diode display (LED), etc., in addition to a wide range of applications in the civilian sphere addition, in the virtual display, high-definition display, language and pattern recognition applications such as military applications.