A hybrid wavelength division multiple access （WDMA）/optical code division multiplexing （OCDM） system is proposed, where the optical code is not the same as the address of every optical network unit （ONU）; rather...
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A hybrid wavelength division multiple access （WDMA）/optical code division multiplexing （OCDM） system is proposed, where the optical code is not the same as the address of every optical network unit （ONU）; rather, the code is a virtual fiber of hybrid passive optical network （PON）. To our knowledge, this is the first report analyzing a single encoder/decoder with a single corresponding optical code being exploited to encode/decode multiple wavelength signals simultaneously. This system enables OCDM to become transparent to ONU so that the existing wavelength division multiplexing （WDM） PON can be upgraded. Thus, redesigning the optical line terminal and ONU can be easily accomplished, and greatly decreasing the number of encoder/decoder becomes possible. In experiment, we only employ two encoder/decoder pairs to combine two WDM-PONs in one fiber. Simulation results confirm the feasibility of the proposed system.
We propose a novel coherent optical single-carrier frequency-division-multiplexing (CO-SCFDM) scheme, which has significantly lower PAPR while achieves high commonality in parameter design with CO-OFDM system. Moreove...
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We compare the transmission performances of CO-SCFDE and CO-OFDM systems with the same system setup and almost the same DSP methods except the IFFT processing. Both CD and SPM tolerances are investigated.
ISBN:
(纸本)9784885522451
We compare the transmission performances of CO-SCFDE and CO-OFDM systems with the same system setup and almost the same DSP methods except the IFFT processing. Both CD and SPM tolerances are investigated.
We propose two inter-carrier interference (ICI) self-cancellation schemes based on CO-OFDM system. They can not only enhance the laser linewidth tolerance of the system, but also improve the robustness against fiber n...
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ISBN:
(纸本)9784885522451
We propose two inter-carrier interference (ICI) self-cancellation schemes based on CO-OFDM system. They can not only enhance the laser linewidth tolerance of the system, but also improve the robustness against fiber nonlinearity.
We demonstrated the superluminal propagation at negative group velocity using stimulated Brillouin scattering (SBS) in optical fibers. In the scheme, the Stokes wave is circulated back into the ring cavity for Brillou...
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ISBN:
(纸本)9781849193146
We demonstrated the superluminal propagation at negative group velocity using stimulated Brillouin scattering (SBS) in optical fibers. In the scheme, the Stokes wave is circulated back into the ring cavity for Brillouin lasing to enhance the peak loss. The experiment demonstrated the superluminal light propagation can be realized by increasing the input signal power. The largest time advancement of 221.2ns has been observed. Correspondingly, the negative group velocity is -0.1.c and the group index is -6.636.
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 1.-...
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ISBN:
(纸本)9781424498826
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 1.-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.
This paper investigates the "Blind Zone" of electronic packet header processing in the core routers of asynchronous optical packet switching network. Simulation shows that the "Blind Zone" has sign...
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For real-time massive data aggregations, we propose a WDM backbone-access network and design an integrated OADMOLT interface node to realize all-optical connections between the backbone and the access {1.. Under ...
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ISBN:
(纸本)9781849193146
For real-time massive data aggregations, we propose a WDM backbone-access network and design an integrated OADMOLT interface node to realize all-optical connections between the backbone and the access {1.. Under such a network infrastructure, we formulate a Light-path-Assignment and Time-Scheduling (LATS) problem for the massive data aggregation application. We prove this problem to be NPcomplete and develop a heuristic approach based on problem decomposition. Extensive simulations demonstrate the effectiveness and the feasibility of the proposed approach.
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...
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We propose and experimentally demonstrate a wavelength division multiplexed-passive optical network (WDM-PON) architecture supporting point-to-point, broadcast, and multicast services based on hybrid modulation format...
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