Wuhan Changjin Photonics TechnologyLtd. 

Wuhan Changjin Photonics Technology Co., Ltd researches, develops, manufactures, and sells optical fibers and technical services. It offers frontier, Yb-doped and Er-doped, Yb and Er co-doped, passive, Tm-doped, and energy transmission fibers for laser processing, communication amplification, sensing and detection, medical and scientific research, advanced manufacturing, optical communications, measurement, national defense and military industry, healthcare, and other fields. The company was founded in 2012 and is based in Wuhan, the People's Republic of China.