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We propose a cost-effective, reconfigurable optical access network by employing passive components in the remote node and dual conventional optical transceivers in ONUs. The architecture is demonstrated with bidirectional transmission at 10 Gb/s.
Blocking performance of an optical WDM-TDM in-building network is significantly improved by dynamic wavelength routing. We analyse optimum clustering of users which reduces system complexity while largely preserving network performance improvement.
We demonstrate a proof of concept real time HD video stream delivery over 50m 1mm core diameter plastic optical fiber and 3m wireless link employing MB-OFDM UWB technology for in-home networks.
Using simple intensity-modulation direct-detection systems, low-cost transceivers and easy-to-install 1-mm core diameter plastic fibers, recent activities on multigigabit baseband and ultra-wideband radio transmission over 50-m link are reported.
We propose and demonstrate, for the first time, service multicasting by all-optical routing of 1 Gb/s IR-UWB using XGM of SOA. This technique has potential applications for integrating IR-UWB with WDM PON and in-building networks.
By using multiple mode groups in parallel, the capacity of a multimode fiber link can be significantly increased. The technical feasibility is shown by theoretical analysis and an experimental 3×3 20m fiber link at 30Gbit/s.
We compare the CapEx and OpEx of in-building networks for fibre and Cat-5E solutions. For residential homes, our analysis shows that total network costs during economic lifetime are lowest for a point-to-point duplex POF topology.
Broadband wired and wireless signals are simultaneously transmitted over 1mm core size 50m POF and 2.5m air link. 3 Gbit/s DMT and 480 Mb/s UWB are successfully delivered with BER <10−3 and EVM <15%, respectively.
We demonstrate a novel 10Gb/s 20km single fiber transmission link based on a remotely fed 1GHz-bandwidth-limited RSOA. Adaptive loading with discrete multitone was applied. We also report flexible-bandwidth-allocated multiple access based on the proposed idea.
We demonstrated an all-optical up-conversion of Multiband OFDM UWB signal employing optical frequency multiplication technique. After transmission over multimode fiber, the performance of the spectral mask and error vector magnitude are compliant with ECMA standard.
We present the experimental study on dynamic capacity allocation in radio-over-fiber based on SOA optical routing. One-dimensional dynamics using optical routing as well as two-dimensional dynamics by optical routing and electrical SCM are demonstrated.
An ultra-fast all-optical demultiplexer based on sum-frequency generation in a Periodically-Poled Lithium Niobate waveguide is demonstrated. Error free performance is achieved with respective penalties of 1.5dB and 2dB for 160-to-10Gbit/s and 320-to-10 Gbit/s demultiplexing operations.
We report a novel low-cost in-home broadcasting system using a 1-mm core graded-index plastic optical fibre split network reaching up to 35 meters. We demonstrated broadcasting 2.5 Gbit/s data to four end-users employing discrete multi-tone modulation.
Exploiting an integrated micro-ring resonator, the simultaneous generation and routing of millimetre-wave signals by optical frequency multiplication is demonstrated for in-building networks. Error Vector Magnitude <; 5% is achieved for up to 120Mb/s 64-QAM at 39.6 GHz carrier frequency.
The first multi-standard transmission consisting of 6 Gbit/s DMT baseband and 200 Mbit/s MB-OFDM UWB radio signals over 100m perfluorinated graded-index plastic optical fibre is demonstrated. Transmission performance indicates BER <; 10-5 and EVM <; -22dB respectively.
To flexibly distribute RoF signals at remote site, a new colourless distribution system based on the modulated ASE noise of an SOA is proposed. Wi-Fi (802.11a/g) LAN signals are successfully transmitted including the wireless link with 3% EVM penalty.
We propose a novel generation technique for IR-UWB signal employing the weighted sum of modified doublets. We experimentally demonstrate a DSP-based BER measurement of 2 Gbps IR-UWB over 100m PF GI-POF for in-building network applications.
A new architecture of reconfigurable WDM-PON networks for the dynamic capacity allocation is proposed and experimentally demonstrated. The architecture based on an SOA gate allows 1 μs switching time to the re-allocation of wavelength resources.
In-building networks delivering broadband wired and wireless services can be realized cost-effectively with duplex plastic optical fibre, particularly when sharing ducts of electrical power cabling. Point-to-point architectures are well-suited for residential buildings, and bus or star-bus ones for larger buildings.
We discuss high-speed optical signal processing for telecom applications. We focus on the optical wavelength conversion and self-clocking, respectively. In the optical wavelength conversion, we report 40 Gb/s wavelength conversion that is capable of converting the same wavelength using a single semiconductor optical amplifier. Experimental proofs are presented. In addition, we report a novel self-clocking...
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