We propose a novel SP-based guiding mechanism to address the following issues simultaneously: confining the light in subwavelength-size regions, showing broadband slow group velocity and lowering the intrinsic loss of...
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We address the problem of routing and wavelength assignment (RWA) considering differentiated reliability (DiR) in WDM mesh networks. The backup resource can be shared by the primary lightpaths. However, both the prima...
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An in-fiber polarizer based on a long period fiber grating on photonic crystal fiber is presnted. It exhibits a high polarization extinction ratio of more than 20dB and a low temperature sensitivity of 3.9pm/°C. ...
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Aiming at the problem of blind source separation of the communication signals, we propose a step size optimization equivariant adaptive source separation via independence (SO-EASI) algorithm basing on the EASI block b...
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By exploiting the symmetry of bidirectional wavelength-connections in WDM networks, we propose an NxN bidirectional OXC using one N/2xN/2 reversible optical switch to reduce the complexity of the OXCs. The feasibility...
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ISBN:
(纸本)9783800730421
By exploiting the symmetry of bidirectional wavelength-connections in WDM networks, we propose an NxN bidirectional OXC using one N/2xN/2 reversible optical switch to reduce the complexity of the OXCs. The feasibility is demonstrated at 10 Gb/s.
This paper proposes V-STONES: a new circuit provisioning model for future Grid applications. V-STONES differs from existing circuits provisioning model in that it allows end hosts to establish more than one connectivi...
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ISBN:
(纸本)9781424418596
This paper proposes V-STONES: a new circuit provisioning model for future Grid applications. V-STONES differs from existing circuits provisioning model in that it allows end hosts to establish more than one connectivity concurrently with multiple remote systems thus can be used in more complex E-Science application scenarios.
Although there are some researches have been done on the testbeds or architectures for optical grid applications, few efforts have been made on the scheduling problem for the optical grid application in theoretical de...
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ISBN:
(纸本)9781424409822;1424409829
Although there are some researches have been done on the testbeds or architectures for optical grid applications, few efforts have been made on the scheduling problem for the optical grid application in theoretical details. When opticalnetworks are considered as resources and jointly scheduled with other grid resources, communication contention must be taken into consideration for efficient task scheduling. This paper analyzes two schemes for reducing the communication contention in joint scheduling of computation and network resources for optical grid, one is the adaptive routing scheme and the other is grid resource selection scheme. The adaptive routing scheme, that was proposed in another paper [16] can detour the heavy traffic and find an earliest start route for each edge scheduling. A multilevel method for grid resource selection scheme is proposed in this paper, which help to schedule tasks onto the nearby resources, leading to a reduction in the average data transferred across individual links. Simulation results show that when we employ the two schemes together in the joint scheduling model, most of the communication contention can be removed, producing the smallest schedule length with relatively lower link utilization.
The growing demand for bandwidth requires the increasing of capacity and reach of wavelength-division multiplexing (WDM) systems, and simultaneous reducing of cost per bitxkm. In this report, I will at first introduce...
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The growing demand for bandwidth requires the increasing of capacity and reach of wavelength-division multiplexing (WDM) systems, and simultaneous reducing of cost per bitxkm. In this report, I will at first introduce the 40 Gbit/s transponder and 40x42.8 Gbit/s WDM long-haul transmission experimental system over standard single mode fiber using all-Raman amplification in our laboratory. By optimizing the chirp of electro-absorption modulation and dispersion compensation, 42.8 Gbit/s NRZ transmission over 1200 km standard single mode fiber was achieved. Then our work about the fiber impairments in Nx40 Gbit/s WDM and polarization-division multiplexing (PDM) system will be reviewed. Also the technique to mitigate the impairment will be described. In particular, Electronic equalization used to overcome the distortion caused by inter-symbol interference (ISI) will be reviewed, and its capability of equalization for intra-channel nonlinearity will be discussed.
A broad pump wavelength band up to 27 nm has been obtained in a 20-mm long periodically poled MgO:LiNbO3. Arbitrary wavelength conversion of signal waves at communication band has been successfully demonstrated throug...
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ISBN:
(纸本)0978921739
A broad pump wavelength band up to 27 nm has been obtained in a 20-mm long periodically poled MgO:LiNbO3. Arbitrary wavelength conversion of signal waves at communication band has been successfully demonstrated through nonlinear quadratic cascading process.
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