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光电信息大讲堂第213期：低功耗高速通信电路与系统Low-Power and High-Speed Communications Circuits and Systems
物联网 无线电收发器 通信电路
2023/4/17
物联网的普遍应用依赖于以不断增长的速度高效地收集、交换和处理信息的能力。这对通信电路和系统的设计提出了巨大的挑战：在设备节点中，无线电通信需要同时实现低功耗、高性能和低成本；在核心数据网络（云）中，海量数据必须以超高吞吐量移动，要求信号链和时钟的高精度和保真度。为了应对这些挑战，本次报告讨论了用于物联网、医疗保健和生物医学应用的超低功率无线电收发器的几种创新架构和电路实现，以及高性能频率产生技术。...
This paper presents a novel and effective stra-tegy for routing custom integrated circuits as well as solutions to subproblems associated with this strategy. Given an initial placement of rectangular ...
224-Gb/s PDM-16-QAM Modulator and Receiver based on Silicon Photonic Integrated Circuits
224-Gb/s PDM-16-QAM Modulator Silicon Photonic Integrated Circuits
2014/11/6
We demonstrate a coherent modulator and a receiver based on monolithicallyintegrated silicon photonic circuits, capable of modulating and detecting 224 Gb/s polarizationdivision-multiplexed 16-QAM. Th...
Atomically thin material opens door for integrated nanophotonic circuits（图）
material opens door nanophotonic circuits
2014/9/12
Researchers at the University of Rochester describe a new combination of materials that could be a step towards building computer chips capable of transporting digital information at the speed of ligh...
Polarization Multiplexed (D)QPSK InP Receiver Photonic Integrated Circuits
Photonic integrated circuits Fiber optics communications Optoelectronics
2015/5/26
In this paper we review recent developments in the area of receiver photonic integrated circuits for the implementation of polarization multiplexed (differentially coded), quadrature phase shift keyin...
Photonic Integrated Circuits for Optical Routing and Switching Applications
Buffers couplers routers, switches multiplexers Photonic integrated circuits
2015/5/22
We report on the latest advances in implementation of integrated photonic components required for optical routing and switching: tunable wavelength converters, mode-locked lasers,active optical switch...
Fully CMOS Compatible Subwavelength Plasmonic Slot Waveguides for Si Electronic-Photonic Integrated Circuits
Plasmonics Waveguides Photonic integrated circuits
2015/5/22
Subwavelength horizontal Al/SiO 2 /Si/SiO 2 /Al plasmonic slot waveguides with SiO 2 width at each side of 15 nm and Si width of 136, 87, and 43 nm are fabricated on SO...
High Performance Photonic Integrated Circuits for Coherent Fiber Communication
Fiber optics communications Integrated optics devices
2015/6/10
Advanced modulation format transmitters and receivers used in optical coherent systems are highly complex, containing many interconnected elements. Photonic integration can reduce the footprint, cost,...
Fully-Etched Photonic Crystal Grating Coupler as an Interface between Single-Mode Fibers and Photonic Circuits on Silicon-on-Insulator
Integrated optics devices Photonic crystals
2015/6/10
A fully-etched photonic crystal grating coupler with low back reflections is introduced as an interface between single-mode fibers and silicon-on-insulator wire waveguides. Peak coupling efficiency of...
Current View of Large Scale Photonic Integrated Circuits on Indium Phosphide
Current View Large Scale Photonic Integrated Circuits Indium Phosphide
2015/6/10
We report on the current state of large-scale and high functionality photonic integrated circuits on the InP platform for transmitters, receivers, and other device applications.
InP-based photonic integrated circuits are key devices for constructing photonic networks with low cost, low power consumption and small footprint. Many types of components are required to span variou...
High-Speed Electronic Circuits for 100 Gb/s Transport Networks
Fiber optics communications Fiber optics links subsystems
2015/6/8
An overview of state-of-the-art high-speed electronic circuits for major 100G modulation schemes is given. The results show the trade-off between electrical performance and energy efficiency and lead ...
MMI-Reflector: A Novel On-chip Reflector for Photonic Integrated Circuits
MMI-Reflector Novel On-chip Reflector Photonic Integrated Circuits
2015/7/17
We present a novel, compact, on-chip multi-mode interference (MMI) reflector, with near-100% theoretical reflection. We measured 78±10% reflection for an InP-based MMI-reflector fabricated with a sing...
Novel 3D Hollow Optical Waveguide with Lateral and Vertical Periodicity for Tunable Photonic Integrated Circuits
3D Hollow Optical Waveguide Lateral Vertical Periodicity Tunable Photonic Integrated Circuits
2015/7/17
A novel design-flexible 3D-hollow-waveguide with lateral- and vertical-periodicity has been demonstrated. A high-index-contrast-grating-(HCG), introduced as a lateral-periodicity, provides vertical as...
Recent applications trends are accelerating a migration of the role of photonic integration from subsystem cost reduction to being a fundamentally enabling technology. This talk discusses the exciting...