On November 30th, Professor Hong Po from Northeastern University U.S.A delivered an academic report titled From Preforms, Fibers to Pump Modules. The main content is the Important Factors in Power Scaling Considerations. Zhang Xingyu, Associate Dean of College of Information Science and Engineering, host the report., and some of the faculty and the students attended the lecture.
Prof. Hong firstly gave a brief introduction of the contents and the related area of his report. Then he introduced the technology of IPG's 10kW signal mode fiber laser, and analyzed the five key issues in power scaling: structure, material properties limitation, beam quality, thermal effects and pump related problems. He explained these problems in details and provided a series of practical and enlightening solutions. After all the main content above, Prof. Hong extended his lecture to some knowledge about critical path for 25kW beyond IPG and summarized it.
After the report, Professor Hong Po patiently answered the questions from the audience and exchanged ideas with them. And he was warmly applauded by the listeners.
Hong Po, an American, received his Bachelor from University Sheffield UK and Master from MIT, Boston U.S.A. From 1984 to 1999 he worked with Dr. Elias Snitzer, the inventor of glass fiber, in Polariod Corporation, Massachusetts as a research scientist and technical manager of Fiber Laser Department. He has 20 years' project experience of fiber laser and he is also one of the inventors of high power double clad fiber laser and one of the international recognized pioneers of fiber laser. In 2000, he founded the advanced optical fiber laser production company, Lasersharp, as the chief of technology officer. Then in 2004 he joined the fiber production company, Liekki, as the vice-president. From 2006, he became an adjunct professor in Northeastern University, U.S.A. He owns more than 30 patents, including 24 international patents and the landmark one of Double-clad Fiber laser. He has published over 30 papers of SCI, cited by more than 300 times.