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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
2022/11/30
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。...
The field-sequential-color liquid crystal display (FSCLCD) without a color filter enables high light efficiency, wide color gamut, and low material cost. However, the visual defect of color breakup (C...
Low Power and Broadband 2 X 2 Silicon Thermo-Optic Switch
Low Power Broadband Thermo-Optic Switch
2011/5/21
We present a 2X2 silicon thermo-optic switch which requires a switching power of only ～12.5 mW and has a response time of 5.4 μs. The measured extinction ratio of the switch is >～20 dB across the C an...
An Ultra-small,Low-power All-Optical Flip-Flop Memory on a Silicon Chip
Packet switching Optical logic devices Optical processing devices
2010/6/9
A 7.5 m-diameter InP microdisk laser, integrated on an SOI waveguide is demonstrated as all-optical flip-flop working in continuous-wave regime with an electrical power consumption of several mW, and ...
Low phase noise laser source packaged in a low power consumption module for all optical sampling applications
Mode-Locked Lasers Semiconductor Lasers
2010/6/9
Using low power consumption photonic modules containing a low timing jitter optical laser source and an optical gate, we demonstrated potential all-optical sampling of a radio signal carried at >5GHz ...
Low-Power, Polarization Tracked 45.6 GB/s per Wavelength PM-DQPSK Receiver in a 10-Channel Integrated Module
Fiber optics communications Phase modulation Integrated optics-Systems
2010/6/8
We introduce an architecture for low-power (<0.05 W/Gb/s) demodulation of PM-DQPSK signals at 45.6 GB/s, and demonstrate an integrated package combining custom 10-channel PLC, photodiode array, and AS...
An Ultra Low Power CMOS Photonics Technology Platform for H/S Optoelectronic Transceivers at less than $1 per Gbps
Fiber optics and optical communications Integrated optics Optoelectronics Modulators Semiconductors Systems
2010/6/8
We have demonstrated a CMOS Optoelectronic technology platform, using a 650mW 4x10-Gb/s 0.13 μm silicon-on-insulator integrated transceiver chip, co-packaged with an externally modulated laser, to ena...
Introducing Students to Communications Concepts Using Optical and Low-Power Wireless Devices
Embedded systems wireless communications hands-on learning
2009/7/28
Wireless communication has become an important feature for commercial products and a popular research topic within the last ten years. There are now more mobile phone subscriptions than wired-line sub...
Stencil-FSC Method for Color Break-Up Suppression and Low Power Consumption in Field-Sequential LCDs
2008/12/16
Field sequential color liquid crystal displays (FSC-LCDs) are still facing a serious artifact, color break-up (CBU), which degrades image quality. Consequently, we propose the “Stencil-FSC” method, ap...