Xian Si Extension Photonics Co., Ltd. is specialized in semiconductor laser research and development, production and sales of high-tech enterprises. To provide customers with high quality products, has accumulated rich experience in structural design and process technology, the formation of a large-scale production capacity. Optical wavelength extension products thinking from 532nm, 635nm, 650nm, 658nm, 670nm, 780nm, 808nm, 850nm to 980nm and other band, the power 1-5000mw formed from the green, red to infrared light than 200 kinds of semiconductor lasers. Products include laser light source, laser marking device (instrument), the word line laser, cross line laser, collimating light source, light teaching experiment, the laser industry modules, industrial and construction use, and other laser products. Widely used test detection equipment, military equipment, laser medical equipment, laser marking, laser range finder, laser swinger, bar code scanners, a logo, experimental teaching, power tools, measuring distance, marking and cutting stage lighting and other fields. The product has high stability, high reliability, consistency and long service life. To provide users with optical solutions, design and production of special purpose semiconductor lasers, optical systems. QUASAR optical semiconductor laser has a number of years in the field of mechatronics design development and production management professionals, and Xi'an-known research institutions and major enterprises in close association, the current annual production of various kinds of semiconductor laser light source product capability up to 300,000 or more. Optical Extension thinking in product development and production break with tradition and the pursuit of innovation, to ensure product quality and service life, and strive to achieve accurate, professional and thorough. Companies with "integrity and responsibility" for the concept of continuous pursuit of excellence. We sincerely hope that domestic and foreign manufacturers of related industries, research institutes develop long-term, friendly, mutually beneficial, mutually beneficial relationship, and to become excellent optical industry manufacturers and suppliers.