The OECC 2023 will be held in Shanghai from 2 July to 6 July 2023. The conference is organized by Shanghai Jiao Tong University and Zhejiang University and co-sponsored by the IEEE Photonics Society, The Optical Society, The Chinese Optical Society, and China Institute Communications. All presented papers will be indexed by EI compendex and available in IEEE Xplore and Optics InfoBase (Optica). This is an annual conference for the researchers and engineers working in the fields of optoelectronics, optical fiber transmission, and photonic network systems in the Asia Pacific region to report, discuss, exchange, and generate ideas that advance the disciplines of optoelectronics and optical communications. Throughout the years, OECC has become the foremost international conference held annually in the Asia-Pacific region.