Professor Chang earned his bachelor degree in Physics from National Tsinghua University in Taiwan in 1969, and his doctoral degree from the University of California, Riverside, in 1976. He spent the following two years doing postdoctoral research in experimental electron/photon physics at Rutgers and Cornell University. Dr. Chang spent the next 23 years within the Bell Systems in New Jersey—Bell Labs, Bellcore, and Telcordia Technologies where he served in various capacities including Director of the Optical Networking Systems and Testbed, Director of the Optical System Integration and Network Interoperability, and finally, Executive Director and Chief Scientist of the Optical Internet Research Group. Prior to joining Georgia Tech, he served as Vice President and Chief Technology Strategist of OpNext, Inc., in charge of technology planning and product strategy for advanced optical networking components.
Dr. Chang has been granted twenty-eight patents in the area of optoelectronic devices, high speed integrated circuits, telecommunication switching components and systems, WDM optical networking elements and systems, multiwavelength optical networks, optical network security, and optical label switching routers. He has co-authored over 130 journal and conference papers.