The PhD in Optical Information Engineering at Yanshan University (YSU) is a distinguished four-year program designed for international students who are passionate about optics and information technology. This program is conducted entirely in English, making it ideal for students with backgrounds in electrical engineering, computer science, or physics seeking to enhance their expertise and engage in pioneering research. Participants will cover crucial topics such as optical communication, image processing, photonics, and optical sensing. The curriculum effectively combines theoretical knowledge and practical skills, allowing students to work in state-of-the-art laboratories equipped with advanced technology. This hands-on experience is integral as students conduct experiments and develop new technologies in optical engineering. The program emphasizes collaborative research, where students work alongside experienced faculty members who are recognized authorities in their fields. Such mentorship is vital as it helps students navigate their academic and research trajectories. Upon earning their doctorate, graduates will be well-equipped for diverse career prospects, including roles as research scientists, optical engineers, or consultants in telecommunications, medical technology, and information technology sectors. Additionally, many graduates may choose to pursue academic careers as educators and researchers worldwide, fostering the next generation of scientists in a rapidly advancing technological landscape.