| Biography | |
|---|---|
 Prof. Yang Yue Nankai University, China |
|
| Title: Ring-core Fiber for OAM-based Optical Communications | |
| Abstract: Light beam carrying orbital angular momentum (OAM) is well known nowadays, as exciting progress on its applications has been made in various fields. OAM modes, as a complete set of orthogonal basis functions for spatial distribution of electromagnetic field with theoretically infinite topological states, have attracted widespread interest in the field of optical fiber communications systems. Over the past decade, researchers have been applying OAM mode division multiplexing (MDM) technology into fiber-based optical systems, in which ring-core fiber was introduced for supporting numerous OAM modes. In this talk, we will introduce several types of ring-core optical fibers supporting OAM modes. Firstly, we design an air-core fiber with a single As2S3 high-index thin ring, which can support 1322 OAM modes at 1550 nm while maintaining single radial mode condition. Based on this design, we further introduce the concept of multi-ring fiber and propose a multi-ring air-core chalcogenide fiber, which has 37 high-index rings with each ring supporting 112 radially fundamental OAM modes across C and L bands from 1530 nm to 1625 nm, i.e. 4144 OAM modes in total. From practical fabrication point, we also propose a 7-ring-core Ge-doped fiber with 434 radially fundamental OAM modes across C and L bands. Furthermore, a trench structure is implemented in the design for the 7-ring-core fiber, which could significantly reduce the inter-ring crosstalk and facilitate a compact fiber structure for dense space-division multiplexing (DSDM). Moreover, coupled ring-core fiber is also proposed to realize large negative dispersion, which could potentially be used as a dispersion compensating element for OAM mode. Additionally, we design the non-zero dispersion-shifted ring fiber (NZDSRF) for supporting OAM modes to balance the chromatic dispersion and nonlinearity. These ring-core optical fibers have great potential to increase the spectral efficiency and the overall capacity in fiber-based communication systems. | |
| Biography: Yang Yue received the B.S. and M.S. degrees in electrical engineering and optics from Nankai University, China, in 2004 and 2007, respectively. He received the Ph.D. degree in electrical engineering from the University of Southern California, USA, in 2012. He is a Professor with the Institute of Modern Optics, Nankai University, Tianjin, China. Dr. Yue’s current research interests include intelligent photonics, optical communications and networking, optical interconnect, detection, imaging and display technology, integrated photonics, free-space and fiber optics. He has published over 200 peer-reviewed journal papers (including Science) and conference proceedings with >8,000 citations, four edited books, >50 issued or pending patents, >100 invited presentations (including 1 tutorial, 5 plenary and 31 keynote talks). Dr. Yue is a Senior Member of the Institute of Electronic and Electrical Engineers (IEEE). He is an Associate Editor for IEEE Access, and an Editor Board Member for three other scientific journals. He also served as Guest Editor for eight journal special issues, Chair and Committee Member for >50 international conferences, Reviewer for >60 prestigious journals. | |
