Dr. Jiangming Xu
National University of Defense Technology, China
Title: High power random fiber laser with flexible spectral manipulation property
Abstract:
High power random fiber laser, whose operation is based on unique random distributed feedback (RDFB), has many remarkable features, such as cavity-free, mode-free, and structural simplicity, and has attracted a great deal of attention in recent years for the potential application in frequency doubling, mid-infrared laser pumping, and supercontinuum generation. Furthermore, thanks to the special power distribution, the output spectral properties of high power random fiber laser can be manipulated via a device with relatively low operation power. In this talk, we will review the progresses in the field of high power random fiber laser. The recent achievements concerning random fiber laser in our group, including performance exploration with the aid of new pump source, power scaling by utilizing power amplifier, and multiple spectral manipulation, will also be introduced.
Biography:
Jiangming Xu is
currently an Instructor at the College of Advanced Interdisciplinary Studies, National
University of Defense Technology, Changsha, China. Hiscurrent researches mainly
focus on the Performance Exploration of High Power All-fiberized Incoherent
Sources, including super fluorescent fiber source (SFS) and random fiber laser
(RFL), from low power level photonic device to powerful and
bright fiber source. The four most notable achievements are as follows: 1) the
development of a compact multi-kilowatt broadband SFS, which delivers the
highest power (3.14 kW) up to now; 2) the pioneering investigations on novel
applications of powerful SFS to pump RFL and mid-infrared optical parametric
oscillator with ultra-stable output; 3) the realization of kilowatt-level
linearly-polarized narrow linewidth RFL for the first time; 4) the development
of linearly-polarized high-order RFL with good polarization performance and the
highest output power. These interesting results may constitute the basis for
further exploitations in a wide range of fields, both from academic and application
point of view.
Currently
he has published more than 50 SCI papersin Optics Letters, Photonics Research, IEEE
Journal of Selected Topics in Quantum Electronics, Optics Express, etc. (including
1 ESI top 1% paper and 15 ESI top 10% papers). Furthermore, he has given 15
conference reports, including 3 Postdeadline presentations and 3 invited talks. He
received many academic awards including Best Student Paper Award of IEEE the 16th International
Conference on Optical Communications and Networks, Wang Daheng Optical Award
(student award) of Chinese Optical Society and Technical Innovation Award of Chinese Society
for Optical Engineering.