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 significant impact o...
详细信息
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 significant impact on packet loss which is also influenced by the arrival interval and the packet length.
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...
详细信息
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. Wireless access for multicast data is provided using optical-carrier-suppression (OCS) technology.
作者：
Bingjie XuXiang PengHong Guo[]CREAM Group
State Key Laboratory of Advanced Optical Communication Systems and Networks （Peking University） and Institute of Quantum Electronics School of Electronics Engineering and Computer Science Peking University Beijing 100871 People’s Republic of China
A passive scheme with a beam splitter and a photon-number-resolving (PNR) detector is proposed to verify the photon statistics of an untrusted source in a plug-and-play quantum-key-distribution system by applying a th...
详细信息
A passive scheme with a beam splitter and a photon-number-resolving (PNR) detector is proposed to verify the photon statistics of an untrusted source in a plug-and-play quantum-key-distribution system by applying a three-intensity decoy-state protocol. The practical issues due to statistical fluctuation and detection noise are analyzed. The simulation results show that the scheme can work efficiently when the total number of optical pulses sent from Alice to Bob is above 108, and the dark count rate of the PNR detector is below 0.5 counts/pulse, which is realizable with current techniques. Furthermore, we propose a practical realization of the PNR detector with a variable optical attenuator combined with a threshold detector.
作者：
Xiang PengBingjie XuHong Guo[]CREAM Group
State Key Laboratory of Advanced Optical Communication Systems and Networks (Peking University) and Institute of Quantum Electronics School of Electronics Engineering and Computer Science Peking University Beijing 100871 People's Republic of China
As a practical method, the passive scheme is useful to monitor the photon statistics of an untrusted source in a “Plug & Play” quantum key distribution (QKD) system. In a passive scheme, three kinds of monitor m...
详细信息
As a practical method, the passive scheme is useful to monitor the photon statistics of an untrusted source in a “Plug & Play” quantum key distribution (QKD) system. In a passive scheme, three kinds of monitor mode can be adopted: average photon number (APN) monitor, photon number analyzer (PNA), and photon number distribution (PND) monitor. In this paper, the security analysis is rigorously given for the APN monitor, while for the PNA, the analysis, including statistical fluctuation and random noise, is addressed with a confidence level. The results show that the PNA can achieve better performance than the APN monitor and can asymptotically approach the theoretical limit of the PND monitor. Also, the passive scheme with the PNA works efficiently when the signal-to-noise ratio (RSN) is not too low and so is highly applicable to solve the untrusted source problem in the QKD system.
This paper proposes a feed-forward neural network predictor to adaptively estimate and suppress the narrowband interference (NBI) in the Direct Sequence-Code Division Multiple Access (DS-CDMA) signal. The iterative co...
详细信息
This paper proposes a feed-forward neural network predictor to adaptively estimate and suppress the narrowband interference (NBI) in the Direct Sequence-Code Division Multiple Access (DS-CDMA) signal. The iterative code-aided estimation is used to further improve the system performance. Simulation results reveal that the proposed algorithm outperforms conventional linear prediction filtering and recurrent neural networks (RNN) based NBI rejection methods, in different interference models.
We propose a simple configuration of wavelength-tunable self-seeding Fabry-Perot fiber laser at ONUs for upstream transmission in hybrid WDM/TDM PON. The performances of the side-mode suppression ratio (SMSR), tuning ...
详细信息
ISBN:
(纸本)9780819485571
We propose a simple configuration of wavelength-tunable self-seeding Fabry-Perot fiber laser at ONUs for upstream transmission in hybrid WDM/TDM PON. The performances of the side-mode suppression ratio (SMSR), tuning range, wavelength and power stability for the proposed laser module are experimentally investigated.
We propose an ultra-broadband optical parametric amplifier (OPA) employing stepstructure hybrid plasmonic waveguide with ultra-high nonlinearity. The proposed parametric amplifier possesses a net signal gain of larger...
详细信息
ISBN:
(纸本)9780819485557
We propose an ultra-broadband optical parametric amplifier (OPA) employing stepstructure hybrid plasmonic waveguide with ultra-high nonlinearity. The proposed parametric amplifier possesses a net signal gain of larger than 14 dB and a 3-dB bandwidth of over 200 nm covering C-band, L-band, and S-band.
This paper investigates the peak-to-average power ratio (PAPR) theory in all-optical orthogonal frequency division multiplexing (OFDM) optical fibre communicationsystems. We find out that phase pre-emphasis could eff...
This paper investigates the peak-to-average power ratio (PAPR) theory in all-optical orthogonal frequency division multiplexing (OFDM) optical fibre communicationsystems. We find out that phase pre-emphasis could effectively reduce PAPR in all-optical OFDM communicationsystems which employ intensity modulation-direct detection (IM-DD) method. An equation is developed and proposed to calculate suitable phasing values for pre-emphasis. Furthermore, we find out that phase pre-emphasis cannot reduce PAPR effectively in all-optical OFDM systems that employ Phase Shift keying (PSK) or Quadracture Amplitude Modulation (QAM) method.
Based on a multi-channel unidirectional ring network test bed, a data transmission model is established and tested. The settings and the implementation of the model are introduced in detail. Finally, the model is test...
详细信息
ISBN:
(纸本)9781424472352
Based on a multi-channel unidirectional ring network test bed, a data transmission model is established and tested. The settings and the implementation of the model are introduced in detail. Finally, the model is tested based on the test bed. The results from both the sending and the receiving transmission platforms show the data transmission model can work effectively.
暂无评论