On-chip silicon photonic signaling and processing: a review

• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2018,（19）
• 页码范围: 1267-1310
• 页数: 44页
• 语种: 英文

摘要

The arrival of the big data era has driven the rapid development of high-speed optical signaling and processing,ranging from long-haul optical communication links to short-reach data centers and high-performance computing,and even micro-/nano-scale inter-chip and intra-chip optical interconnects.On-chip photonic signaling is essential for optical data transmission,especially for chip-scale optical interconnects,while on-chip photonic processing is a critical technology for optical data manipulation or processing,especially at the network nodes to facilitate ultracompact data management with low power consumption.In this paper,we review recent research progress in on-chip photonic signaling and processing on silicon photonics platforms.Firstly,basic key devices (lasers,modulators,detectors)are introduced.Secondly,for on-chip photonic signaling,we present recent works on on-chip data transmission of advanced multi-level modulation signals using various silicon photonic integrated devices (microring,slot waveguide,hybrid plasmonic waveguide,subwavelength grating slot waveguide).Thirdly,for on-chip photonic processing,we summarize recent works on on-chip data processing of advanced multi-level modulation signals exploiting linear and nonlinear effects in different kinds of silicon photonic integrated devices (strip waveguide,directional coupler,2D grating coupler,microring,silicon-organic hybrid slot waveguide).Various photonic processing functions are demonstrated,such as photonic switch,filtering,polarization/wavelength/mode (de)multiplexing,wavelength conversion,signal regeneration,optical logic and computing.Additionally,we also introduce extended silicon+ photonics and show recent works on on-chip graphene-silicon photonic signal processing.The advances in on-chip silicon photonic signaling and processing with favorable performance pave the way to integrate complete optical communication systems on a monolithic chip and integrate silicon photonics and silicon nanoelectronics on a chip.It is believed that silicon photonics will enable more and more emerging advanced applications even beyond silicon photonic signaling and processing.