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检索条件"机构=State Key Lab State Key Laboratory of Advanced Optical Communication System and Networks"

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Simultaneous measurement of strain and temperature using a High-birefringence Fiber Loop Mirror and an Erbium-doped Fiber

Simultaneous measurement of strain and temperature using a H...

引用

Asia communications and Photonics Conference and Exhibition(2010亚洲光纤通信与光弹博览会及研讨会 ACP 2010)

作者： Jie Shi Shilin Xiao He Chen Min Zhu Meihua Bi State Key Lab of Advanced Optical Communication Systems and Networks Shanghai Jiao Tong University Shanghai China

ISBN: (纸本)9780819485588

A fiber sensor configuration suitable for simultaneous measurement of temperature and strain is investigated. The sensor consists of a high-birefringence fiber loop mirror concatenating with an erbium-doped fiber. By monitoring the peak power variation and peak wavelength shift, it is feasible to simultaneously measure temperature and strain.

关键词： Erbium fibers Fiber optic sensors Photonic crystal fibers Polarization maintaining fibers Single mode fibers Strain measurement

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Long-term stability of frequency transfer over an urban fiber link using microwave phase compensation

Long-term stability of frequency transfer over an urban fibe...

引用

International Conference on Electromagnetics in advanced Applications (ICEAA)

作者： Zhigang Zhang Dong Hou Peng Li Cheng Liu Jianye Zhao Circuit and System Laboratory Institute of Quantum Electronics State Key Laboratory of Advanced Optical Communication System and Networks School of Electronics Engineering and Computer Science Peking University Beijing China

We report a novel system for highly stable 100 MHz mode locked pulse as a reference frequency signal transfer through a round trip 20 km urban fiber link. An electronic approach for compensating the fluctuations introduced by the link is proposed and implemented. The rms phase fluctuation was reduced from 75 mrad (118 ps) to 4 mrad (6.3 ps) in 48 hours, and the frequency stability was improved by three orders of magnitude in the measurement time.

关键词： optical fiber networks optical fibers Fluctuations optical pulses Fiber lasers Delay

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A 60-GHz RoF system in WDM-PON with reduced number of modulators and low-cost electronics

A 60-GHz RoF system in WDM-PON with reduced number of modula...

引用

IEEE PhotonicsGlobal@Singapore, IPGC

作者： Liang Zhang Xiaofeng Hu Pan Cao Yikai Su State Key Laboratory of Advanced Optical Communication Systems and Networks Department of Electronic Engineering Shanghai Jiaotong University China

We propose and experimentally demonstrate a simple and cost-effective scheme to converge a 60-GHz radio-over-fiber (RoF) system with a wavelength division multiplexed-passive optical network (WDN-PON) system. Only 10-GHz electronic devices are used to generate a 60-GHz RoF signal based on frequency-sextupling technology. For n-channel WDN-PON and RoF converged system, only n+1 modulators are required.

关键词： Baseband optical fibers optical network units Differential phase shift keying Wavelength division multiplexing Passive optical networks

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Ultra-high-speed hybrid silicon devices and applications

Ultra-high-speed hybrid silicon devices and applications

引用

9th International Conference on optical communications and networks (ICOCN 2010)

作者： Yikai Su State Key Laboratory of Advanced Optical Communication Systems and Networks Department of Electronic Engineering Shanghai Jiaotong University Shanghai China

ISBN: (纸本)9781617828515

Summary form only given. We propose a step-structure hybrid Plasmon waveguide consisting of polymer sandwiched between silicon and metal layers. The metal step provides an additional degree of freedom to control the conductor-gap-dielectric (CGD) mode to tune the trade-off mode confinement against attenuation. Under optimal configurations, mode size decreases to a few nanometres and the loss reduces to ten percent of that of conventional Ag/silicon surface Plasmon. Due to the ultra strong mode confinement and high nonlinear polymer as the gap layer, the achieved nonlinearity is 3 orders larger than that of conventional silicon waveguide. By using the high nonlinearity of the device, system applications can be explored such as parametric amplifier and high speed time de multiplexer.

关键词： Plasmon high speed nano photonics silicon system applications Plasmon High speed Silicon Degree of freedom hypervelocity Silicon devices Parametric amplifiers nonlinearity

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Dispersionless Slow Light in Fiber Bragg Gratings with Active Materials

Dispersionless Slow Light in Fiber Bragg Gratings with Activ...

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Photonics and Optoelectronics, SOPO

作者： Yang Liu Chun Jiang Yaming Lin Wenhui Xu State Key Lab of Advanced Optical Communication Systems and Networks Department of Electronic Engineering Shanghai Jiaotong University Shanghai China

In this paper, an atomic system is suggested to be embedded in the fiber Bragg gratings (FBG) to reduce the group velocity and to eliminate the dispersion of slow light. We demonstrate numerically that the pulse can be transmitted at the group velocity 0.147c dispersionlessly in the FBG, compared with 0.193c and 56% of FWHM broadening without the atomic system.

关键词： Slow light Periodic structures Fiber gratings Bragg gratings Photonic band gap Refractive index Frequency Space vector pulse width modulation Delay Linear systems

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Reconfigurable multi-logic gates based on SOA nonlinear polarization rotation effect

Reconfigurable multi-logic gates based on SOA nonlinear pola...

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OptoElectronics and communications Conference, OECC

作者： Lilin Yi Weisheng Hu Hao He State Key Lab of Advanced Optical Communication Systems and Networks Department of Electronic Engineering Shanghai Jiaotong University Shanghai China

We demonstrate a reconfigurable all-optical logic gate based on predominant nonlinear polarization rotation effect in a single semiconductor optical amplifier. The principle of operation is explained in detail. Five reconfigurable logic functions, including NOT, OR, NOR, AND, and NAND, were realized using 10-Gb/s on-off keying signals with flexible wavelength tenability. The logic operations were achieved by adjusting polarization controllers and the input data power.

关键词： Logic gates Semiconductor optical amplifiers Probes Reconfigurable logic optical polarization Tuning Nonlinear optics

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A quick distributed soft handoff method in CDMA system based on mobile agent

A quick distributed soft handoff method in CDMA system based...

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2nd International Conference on networks Security, Wireless communications and Trusted Computing, NSWCTC 2010

作者： He, Zhou Ye, Fei Wang, Chuanbiao Mei, Junyao Li, Wei Tao, Zhiyong Huang, Dexiu Wuhan National Lab. for Optoelectronics School of Optoelectronics Science and Engineering Huazhong University of Science and Technology Wuhan430074 China State Key Laboratory of Optical Communication Technologies and Networks Wuhan Research Institute of Posts and Telecommunications Wuhan 430074 China

ISBN: (纸本)9780769540115

A novel scheme of soft-handoff in CDMA system based on a distributed management technology named mobile agent is promoted in this letter. In this method, a mobile agent, which can get channels bandwidth utilization and signal strength information automatically among Base Stations (BSs) and Mobile Switch Centers (MSCs), is created in each BS and MSC. The soft-handoff would be managed by BSs instead of MSCs which could reduce communication times among them, and could solve the "bottle-neck" problem when the handoff is frequent. By analysis and simulation, it can reduce the handoff delay to 55.2% when networks are busy. © 2010 IEEE.

关键词： Mobile agents

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A Multiband Radio over Fiber system Using One Singledrive Mach-Zehnder Modulator

A Multiband Radio over Fiber System Using One Singledrive Ma...

引用

Asia communications and Photonics Conference and Exhibition(2010亚洲光纤通信与光弹博览会及研讨会 ACP 2010)

作者： Liang Zhang Xiaofeng Hu Pan Cao Tao Wang Yikai Su State Key Lab of Advanced Optical Communication Systems and Networks Department of Electronic Engineering Shanghai Jiao Tong University Shanghai 200240 China

We propose and experimentally demonstrate a simple and cost-effective bi-directional radio-over-fiber (RoF) system for simultaneous transmission of downstream baseband, microwave (MW) and millimetre-wave (MMW) signals based on a single-drive Mach-Zehnder modulator (MZM). Upstream data transmission is realized by re-modulation of the downstream signals.

关键词： Baseband optical filters Radio frequency optical transmitters optical fibers optical reflection

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Highly-nonlinear ultrafast plasmonic waveguide device on SOI

Highly-nonlinear ultrafast plasmonic waveguide device on SOI

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Asia communications and Photonics Conference and Exhibition(2010亚洲光纤通信与光弹博览会及研讨会 ACP 2010)

作者： Yikai Su State Key Lab of Advanced Optical Communication Systems and Networks Department of Electronic Engineering Shanghai Jiao Tong University Shanghai 200240 China

We propose a step-structure hybrid plasmon waveguide on silicon-on-insulator (SOI). The metal step provides an additional degree of freedom to trade-off between mode confinement and attenuation. The achieved nonlinearity is 2-3 orders larger than that of conventional silicon waveguide. We then design an ultra-compact, broadband optical parametric amplifier (OPA) using such a structure.

关键词： optical waveguides Plasmons Waveguide discontinuities Silicon Metals optical amplifiers Stimulated emission

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A Reconfigurable All-optical VPN Based on XGM Effect of SOA in WDM PON

A Reconfigurable All-Optical VPN Based on XGM Effect of SOA ...

引用

Asia communications and Photonics Conference and Exhibition(2010亚洲光纤通信与光弹博览会及研讨会 ACP 2010)

作者： Xiaofeng Hu Liang Zhang Pan Cao Tao Wang Yikai Su State Key Lab of Advanced Optical Communication Systems and Networks Department of Electronic Engineering Shanghai Jiao tong University Shanghai 200240 China

We propose and experimentally demonstrate a reconfigurable all-optical VPN scheme enabling intercommunications among different ONUs in a WDM PON. Reconfiguration is realized by dynamically setting wavelength conversio... 详细信息

ISBN: (纸本)9780819485564

关键词： Light sources optical access networks optical networks optical signals Wavelength conversion Wavelength division multiplexing

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