seminar: Making a different semiconductor laser

Title: Making a different semiconductor laser
Speaker: Tang Xiaohong
Associate Professor
Division of Microelectronics
School of Electrical & Electronic Engineering, College of Engineering
Nanyang Technological University, Singapore
Time: 15:30 – 16:30, Friday, March 21, 2014
Place: Room 401

Photonic devices used in optical communication systems are relatively large, discrete components, as opposed to very small and densely integrated circuits in the case of electronic IC. Yet optics has enabled the transmission of information with almost unlimited bandwidth. Photonic integration provides many of the same advantages as electronic integration, including lower cost per device and per functionality, lower operating and higher reliability, etc. In this talk, a post-growth energy bandgap tuning technology for realizing the monolithic photonic integrated circuits (PIC) will be induced. An one current injection multi-wavelength emitting semiconductor laser based on this technique has been developed.


Dr. Tang Xiaohong received his B.S degree in Physics (Laser Physics) from Fudan University, China, in 1982 and Ph.D degrees in Electrical Engineering (Semiconductor materials and devices) from the National University of Singapore, Singapore, in 1998. He joined the Nanyang Technological University as a Postdoctoral Fellow in 2000, where he is now an Associate Professor (Semiconductor Photonics and Electronics). Prior to joining Nanyang Technological University, he had worked as a Lecturer in the University of Electronic Science & Technology of China (UESTC), China, and a Process/Product Engineer in the Agilent Technologies, (then Hewlett Packard, Singapore). In Nanyang Technological University, he leads the metal-organic vapor phase epitaxy (MOVPE) group involving in the scientific researches in compound semiconductor epitaxy growths and semiconductor photonic and microelectronic devices. Dr. Tang has been the Principal Investigator and Co-Principal Investigator for a number of major research projects funded by Singapore Defence Science and Technology Agency (DSTA), Agency for Science, Technology and Research (A*STAR), Ministry of Education (MOE) of Singapore, the Defense Advanced Research Projects Agency (DARPA) of United States, etc. Dr. Tang is a member of the Materials Research Society (MRS) and the Optical Society of America (OSA).