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【期刊论文】A New Node Architecture for Scalable Wavelength Label Switching Networks Using MPLS
叶培大, Rong Xu, YueFeng Ji, Qian Gong, Peida Ye, Fellow IEEE
,-0001,():
-1年11月30日
This paper presented a novel approach integrated recent advances in MPLS traffic engineering with wavelength switch/routing technologies to achieve optical interconnect for IP-centric Data Networks. New node architecture for scalable wavelength label switching networks (WLSnet) is proposed, which supported label switching and wavelength routing. This paper showed this network add more flexible routing, traffic engineering, and explicit routes via MPLS, is the best way to realize optical interconnects and to reduce management complication and cost of network. We have shown an approach to dynamically interconnect routers via wavelength, including a bypass routing in the node, by this way new wavelengths may easily be introduced to the network at a reasonable cost. This approach also paves the way for the eventual incorporation of DWDM multiplexing capabilities in IP routers, and establishes a preliminary framework for the notion of an optical Internet.
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【期刊论文】A Novel IP with MPLS Over WDM-Based Broad-Band Wavelength Switched IP Network
叶培大, Rong Xu, Qian Gong, and Peida Ye, Fellow, IEEE
JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 19, NO.5, MAY 2001,-0001,():
-1年11月30日
This paper presents a new technology for constructing IP over photonic systems. An IP with multiprotocol label switching (MPLS) over wavelength division multiplexing (WDM)-based broad-band IP network architecture and protocol is proposed and analyzed in this paper, which supports variable-length IP-like optical packet label switching and optical virtual path routing. This system tries to merge into one layer the functionalities of the wavelength switching, SONET mux/demux, and IP routing, and is sometimes known as the concept of optical MPLS. The label banding, forwarding/switching process, and node architecture of the proposed network are discussed and studied. A unique as well as important function of a lambda/label edge router (LER) is a flow assembly device that can encompass MPLS' forward equivalence classes, label stacking, and label switching path aggregation function. At the same time, a particular function of the core label switching router is wavelength merging. A fiber delay line is used to delay the data stream in order to process the label information and resolve contention. Transmission bit error rate measurements of the baseband data stream and back-to-back is also demonstrated to show its feasibility.
Broad-band IP network,, IP with multiprotocol label switching (, MPLS), over wavelength division multiplexing (, WDM), ,, multiprotocol lambda switching,, variable-length optical packet switching.,
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叶培大, Xiang Zhou, Member, IEEE, Hossam H. M. Shalaby, Senior Member, Lu Chao, T.H. Cheng, and Peida Ye, Fellow
JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 18, NO.10, OCTOBER 2000,-0001,():
-1年11月30日
In this paper, we develop an analytical method to deal with the timing performance in an optical clock extraction circuit based on stimulated Brillouin scattering (SBS). Three kinds of SBS active filters are considered and their frequency-transfer functions are obtained under the assumption that pump depletion caused by SBS is negligible. When pump depletion is taken into account, an SBS active filter acts as a nonlinear filter. To investigate the timing performance at this situation, we introduce the concept of "dynamic frequency-transfer function" to describe its frequency-response property for a fixed-signal light and pump light. Using the obtained "frequency-transfer function," we give analytical expressions for both root-mean-square (rms) phase jitter and rms amplitude jitter of the extracted optical clock, in which we have taken the impacts of SBS gain, pump light linewidth, optical pulse chirp, and pump detuning into account. Finally, a detailed numerical investigation on the timing performance for the three active filters is presented.
All-optical signal processing,, optical active filter,, optical clock extraction,, optical tank circuit,, rms amplitude jitter,, root-mean-square (, rms), phase jitter,, stimulated Brillouin scattering (, SBS), .,
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【期刊论文】A Novel Self-Synchronization Scheme for All-Optical Packet Networks
叶培大, Xuetian Huang, Peida Ye, Fellow, IEEE, Min Zhang, and Lin Wang
IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 17, NO.3, MARCH 2005,-0001,():
-1年11月30日
A novel self-synchronization scheme utilizing a semiconductor optical amplifier (SOA) monolithically integrated with a delay interferometer (DI) is proposed and numerically demonstrated in this letter. The proposed scheme is based on the fast gain saturation and relatively slow gain recovery of the SOA. With the properly chosen DI delay time, input pulsewidth, and SOA carrier lifetime, input pulse energies as low as 100 fJ can be utilized to achieve a larger than 10-dB contrast ratio of the first to the other pulses of a transmitted packet.
Optical fiber communication,, optical signal processing,, packet switching,, semiconductor optical amplifiers (, SOAs), ,, synchronization.,
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【期刊论文】DUAL-CONTROL NONLINEAR OPTICAL LOOP MIRROR FOR ALL-OPTICAL DEMULTIPLEXING
叶培大, Zhou Xiang and Peida Ye, Fellow IEEE
1997 Asia Pacific Microwave Conference 3P15-8,-0001,():
-1年11月30日
This paper proposes a novel dual-control nonlinear optical loop mirror configuration for all-optical demultiplexing. It is shown that the crosstalk arising from unwanted cross-phase-modulation is inherently removed, and the maximum jitter tolerance can be obtained without on/off degradation.
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