搜索结果: 1-15 共查到“光电子技术 Efficient”相关记录39条 . 查询时间(0.142 秒)
Photocathodes are materials that emit electrons when illuminated by light, and are vital to the performance of some of the world’s most powerful particle accelerators.
New Design Results in Compact,Highly Efficient Frequency Comb
New Design Results Compact Highly Efficient Frequency Comb
2017/3/30
Northwestern Engineering researchers have designed a quantum cascade laser (QCL) frequency comb that is dramatically more efficient than previous iterations. Led by Manijeh Razeghi, researchers i...
Making Hydrogen Fuel from Water and Visible Light Highly Efficient（图）
Making Hydrogen Fuel Water Visible Light Highly Efficient
2015/9/9
Mimicking photosynthesis is not easy. The bottleneck of artificial photosynthesis is visible light, because converting it into other forms of energy is not efficient. Researchers at Michigan Technolog...
EFFICIENT HOUGH TRANSFORM FOR AUTOMATIC DETECTION OF CYLINDERS IN POINT CLOUDS
Cylinder detection Object recognition Hough Transform Reverse Engineering
2015/8/13
We present an efficient Hough transform for automatic detection of cylinders in point clouds. As cylinders are one of
the most frequently used primitives for industrial design, automatic and ro...
Energy Efficient Content Distribution for VoD Services
Networks network optimization network topology
2015/5/26
The energy consumption of VoD services arising from storage and transport of video contents stored in different content placement locations is investigated. Our results provide insight into content pl...
20-Gb/s Power-Efficient CMOS-Driven Multimode Links
Fiber optics links subsystems Fiber optics sources detectors Optical interconnects
2015/5/25
We report several firsts for CMOS-driven, VCSEL-based, multimode transmitters and receivers: serial links up to 20 Gb/s; unprecedented full-link power efficiencies from 8 pJ/bit (15 Gb/s) to 17 pJ/bit...
Power-Efficient Photonic BPSK Coded Ultrawideband Signal Generation
Fiber optics optical communications Radio frequency photonics
2015/5/22
We experimentally demonstrate a power-efficient BPSK coded ultrawideband(UWB) signal generator. The 2.5 Gb/s BPSK coded signal is achieved through optical switching based on two intensity modulators d...
Phase Sensitive Degenerate Parametric Amplification Using Highly Efficient PPLN Ridge Waveguides
Nonlinear optics parametric processes Lithium niobate
2015/5/22
We constructed the first CW pumped degenerate parametric amplifier based on PPLN waveguides. We successfully demonstrated an in-phase gain of +11 dB and the phase sensitive amplification of a modulate...
First Demonstration of Symmetric 10-Gb/s Access Networks Architecture based on Silicon Microring Single Sideband Modulation for Efficient Upstream Signal Re-modulation
Fiber optics communications Integrated optics devices
2015/5/21
We demonstrate an optical access network utilizing downstream silicon microring single-sideband modulation and upstream phase-remodulation of a centrally distributed carrier. Rayleigh-backscattering i...
Efficient Regenerator Placement and Wavelength Assignment in Optical Networks
Efficient Regenerator Placement Wavelength Assignment Optical Networks
2015/5/21
We present a novel auxiliary graph approach for optical networks regenerator placement and wavelength assignment (RPWA) problem. Simulation results show that our proposed approach outperforms other tw...
Highly efficient and widely wavelength-tunable anti-Stokes signal conversion in the fundamental mode of photonic crystal fibe
Highly efficient wavelength-tunable anti-Stokes signal conversion undamental photonic crystal fibe
2015/5/20
Anti-Stokes signals from 645 to 543nm are generated in the fundamental mode. The power ratio of signal at 543 nm to residual pump at 840 nm is 22.6:1, the conversion efficiency P as /P p0 being above ...
Efficient Shared Subconnection Protection in Mixed-Line-Rate Optical WDM Networks
Efficient Shared Subconnection Protection Mixed-Line-Rate Optica WDM Networks
2015/5/20
Employing Mixed Line Rates (MLR) in optical WDM networks enables new paradigms for protection. We propose to design transparent MLR networks with shared subconnection protection and achieve significan...
OTM- and OTDR-based cost-efficient Fiber Fault Identification and Localization in Passive Optical Network
OTM Passive Optical Network OTDR-based cost-efficient Fiber Fault
2015/5/18
PON monitoring based on combined Optical Time Domain Reflectometry (OTDR) and Optical Transceiver Monitoring (OTM) is presented. The results on a 25-km 1:32 PON prove the concept and show ~0.02 dB acc...
Cascade Laser Power Converter for Simultaneous 10 Gbps Data Detection and Efficient Optical-to-Electrical DC Power Generation
Power Converter Laser Gbps Data Detection Efficient Optical Electrical DC Power Generation
2015/5/15
We demonstrate a novel device; cascade high-speed laser power converter. Error-free 10 Gbit/sec data detection and 21.1% optical-to-electrical DC power generation efficiency can be achieved simultaneo...
A New Scheme of Aspherical Microlense for Efficient Coupling High-Power Lasers to Fibers
Aspherical Microlense Efficient Coupling High-Power Lasers Fibers
2015/5/14
We propose and demonstrate a new scheme of aspherical microlens (ASM) employing a single-step grinding technique with fully automated process for efficient coupling between the high-power 980-nm laser...