The Institute of Optics and Electronics, Chinese Academy of Sciences is glad to announce the launch of a new free online journal Opto-Electronic Advances (OEA). Optics and opto-electronics are of paramount importance in the development of science and technology during the last four hundred years. With the emergence of new manufacturing and characterization technologies, these areas have developed into a new phase. At this stage, our existing journal Opto-electronic Engineering (OEE), which mainly reports the cutting-edge technical advances and engineering applications of optics and opto-electronics in China, could not meet the global technical developments and communications requirements of these areas. In order to promote international academic and technical communications, we are pleased to launch a new English journal ——OEA. It will be more aimed at theoretical and technological innovations covering all significant research activities in the broad area of optics and opto-electronics. The journal provides a chance for authors to publish the latest research results, and for readers to learn breakthroughs and advances more conveniently and efficiently.