China Optical Valley is a company specializing in providing active fiber, polarization-controlled fiber, photonic crystal fiber and other special fibers, fiber lasers, as well as technology development, technical services, and technical consulting for enterprises, research institutes, universities and other users.The company is supported by many well-known universities and research institutes at home and abroad, and has a united, dedicated and enterprising talent team.It can provide users with customized various fiber and fiber laser products and technical development services.Based on the principle of user first and continuous progress, Changjin Photonics adheres to the corporate spirit of "specialize my strengths and make great progress", and has the mission of developing and producing high-quality and diverse special optical fibers and device products.Our goal is to lead the development of the special fiber and fiber laser industries, break the monopoly of domestic manufacturers in this field, and work with users to create a new situation in China's special fiber and fiber laser industries.