The birth of the laser principle of discovery

Generally speaking, the engraving depth and carving material absorption of the laser, the laser power and laser carved materials on time factors. Deep carving usually require a longer duration of action. The surface of the plastic materials of all kinds of gold, carved deep and shallow carving, engraving code, company logo, as well as more complex images. The advantages of laser metal carved deep laser has many advantages than the traditional mechanical metal engraving in metal sculpture, one of the biggest advantages of laser engraving without contact with the engraving of the workpiece, thus eliminating many of the fixture and tool. In addition high precision laser engraving, especially suitable for complex graphics processing. It is the 1000mW green  green laser pointer .
The fiber laser is a new technology developed in the past five years, with reliable, high-, maintenance-free and spot mode, has been widely used in the engraving field. Compared with other types of lasers, fiber lasers with short pulse width, high repetition rate, peak power, etc., in the engraving process, thus greatly reducing the negative impact of thermal effects, making the processing of more excellent quality, processing efficiency greatly increased. G3 pulsed laser pulsed laser technology-based Q-switched fiber laser, the SPI laser produced 10 ~ 30W the G3 (third generation) pulsed laser (see Figure 1 and Figure 2) master oscillator power amplifier (MOPA) technology. For the pen shape green laser pointer .
The birth of the laser principle of discovery and the laser is a major achievement of 20th century science and technology. Is one of the four major inventions par with atomic energy, semiconductor, computer. The invention of the laser, is the product of optical development and closely integrated with other areas of science and technology, and mutual penetration. The emergence of the laser not only optical revolutionary development, the impact of the physics, such as chemistry, biology and technology and applied sciences and other disciplines such as electrical engineering, materials science, communications, medicine and so had a huge impact . Laser application in the field of communications and research progress. Laser communication in accordance with the different transmission medium is divided into four categories: optical fiber communications, atmospheric communications, space communications, underwater communications.