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 highperformance compu...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 highperformance 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展开更多
A mathematics model for calculating the off-design performance of a 400MW integrated gasification combined cycle (IGCC) unit is built up in this paper. The advanced production techniques and system configuration are u...A mathematics model for calculating the off-design performance of a 400MW integrated gasification combined cycle (IGCC) unit is built up in this paper. The advanced production techniques and system configuration are utilized to meet the requirement of the demonstrative IGCC plant to be built in China. The performance of some subsystems such as coal gasifier, air separator, gas turbine, compressor, heat regenerative steam generator, steam turbine are respectively modeled by using corresponding algebraic equations. The method of process system engineering (PSE) are adopted to solve the interaction problem between subsystems. The performance parameters of the unit at five different load points are calculated and analyzed based on our model.展开更多
基金supported by the National Program for Support of Top-notch Young Professionalsthe National Natural Science Foundation of China(NSFC)(61222502,61761130082,11574001and 11774116)+5 种基金the Royal Society-Newton Advanced Fellowshipthe National Basic Research Program of China(973 Program)(2014CB340004)the Yangtze River Excellent Young Scholars Programthe Program for New Century Excellent Talents in University(NCET-11-0182)the Natural Science Foundation of Hubei Province of China(2018CFA048)the Program for HUST Academic Frontier Youth Team
文摘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 highperformance 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
文摘A mathematics model for calculating the off-design performance of a 400MW integrated gasification combined cycle (IGCC) unit is built up in this paper. The advanced production techniques and system configuration are utilized to meet the requirement of the demonstrative IGCC plant to be built in China. The performance of some subsystems such as coal gasifier, air separator, gas turbine, compressor, heat regenerative steam generator, steam turbine are respectively modeled by using corresponding algebraic equations. The method of process system engineering (PSE) are adopted to solve the interaction problem between subsystems. The performance parameters of the unit at five different load points are calculated and analyzed based on our model.
