搜索结果: 1-15 共查到“光信息技术 bandwidth”相关记录19条 . 查询时间(0.079 秒)
Towards 400GBASE 4-lane Solution Using Direct Detection of MultiCAP Signal in 14 GHz Bandwidth per Lane
Towards 400GBASE 4-lane MultiCAP Signal 14 GHz Bandwidth per Lane
2014/11/6
We report on an experimental demonstration of 102 Gbit/s transmission over a 15km single wavelength and polarization fiber link with 14GHz 3dB bandwidth. Novel multi-band CAP signaling allows for a 4-...
Impact of ADC Bandwidth and Clipping Ratio on COF-PON Systems Based on Spatial Coding and Subcarrier Multiplexing
Analog-to-digital convertor (ADC) clipping ratio code-division-multiplexing (CDM) passive optical networks (PON) subcarrier multiplexing
2011/12/2
In this paper, we analyze the impact of analog-to digital convertor (ADC) bandwidth and clipping ratio on the performance of a 1 Gb/s x 15 user CDM-over-fiber-PON (COF PON) system based on 16-QAM modu...
Effects of filter bandwidth and driving voltage on optical duobinary transmission systems
2011/11/23
This work demonstrates how electrical driving voltage of a Mach–Zehnder modulator and the bandwidth of electrical low-pass filters (LPFs) affect optical duobinary signals. The fact that a 100% driving...
Dynamic Bandwidth Allocation in Flexible OFDM-based Networks
Dynamic Bandwidth Allocation Flexible OFDM-based Networks
2011/5/25
We propose a general policy to allocate subcarriers to time-varying traffic in a flexible OFDM optical network. We compare the OFDM network performance to that of a fixed-grid WDM network using simula...
Flexible-Bandwidth, Impairment-Aware Transmitter Based on Parallel Synthesis of Optical Frequency Combs
Optical communications All-optical networks Systems
2011/5/22
We demonstrate a proof-of-principle transmitter for flexible-bandwidth network with parallel synthesis and a wavelength-selective switch. Impairment-aware spectrum allocation is used to maintain data ...
Bandwidth Scalable, Coherent Transmitter Based on Parallel Synthesis of Multiple Spectral Slices
Modulation Coherent Communications Pulse Shaping
2011/5/22
This paper presents a bandwidth-scalable, coherent optical transmitter based on the parallel synthesis of multiple spectral slices. As a proof-of-principle, two spectral slice, 6-ns DPSK and QPSK wave...
A Novel Optical Burst Ring Network with Optical-Layer Aggregation and Flexible Bandwidth Provisioning
Network ring All-optical networks
2011/5/22
A novel optical burst ring network is proposed by employing fixed-tuned transmitters rather than fast tunable lasers. All-optical traffic aggregation/bypass at network nodes significantly reduces the ...
OLARP:Open Lambda Assignment and Routing Problem – Bandwidth Multiplier for Metro and Access Networks
OLARP Open Lambda Assignment Routing Problem – Bandwidth Multiplie Access Networks
2011/5/21
We consider, for the first time, the problem of flexible/open wavelength assignment and propose an optimal as well as heuristic solution. Simulation results validate our solution to within 15% of the ...
Demonstration of 25.78-Gb/s, 20-km Reach WDM PON Using Directly-Modulated Bandwidth-Limited RSOA
Fiber optics links subsystems Semiconductor optical amplifiers
2011/5/20
We demonstrate the 25.78-Gb/s operation of directly-modulated RSOA. The results show that it is possible to transmit the 25.78-Gb/s signal over 20 km in the wavelength range of ~20 nm with the dispers...
100G Transoceanic Length Transmission with High Spectral Efficiency Using Bandwidth Constrained PDM-QPSK
100G Transoceanic Length Transmission High Spectral Efficiency Bandwidth Constrained PDM-QPSK
2011/5/20
We review our recent 100G, high spectral efficiency, transmission experiments over transoceanic and regional distances. Transmitter pre-filtering together with a MAP detection algorithm can significan...
Future bandwidth demand favors TDM PON, not WDM PON
Future bandwidth demand favors TDM PON WDM PON
2011/5/18
Claims to the contrary notwithstanding, quantitative trends indicate that TDM PON bandwidth supply is growing faster than subscriber bandwidth demand, and TDM PON will deliver future ultra-high speed ...
DWDM transmission at 10Gb/s and 40Gb/s using 25GHz grid and flexible-bandwidth ROADM
DWDM transmission 25GHz grid flexible-bandwidth ROADM
2011/5/18
DWDM transmission with flexible-bandwidth ROADM supporting 25GHz-spaced 10G channels and co-propagating 50GHz-spaced 40G channels is studied experimentally. Nonlinear and ROADM-induced OSNR penalties ...
Fractional Survivable Network Bandwidth:A Comparison of IP over WDM Schemes
Network Survivability Network Protection Restoration
2010/6/10
IP over WDM network schemes are considered that protect a fraction b of the network bandwidth. If b is large then failure detection and fractional bandwidth protection at the optical layer lowers band...
256 QAM (64 Gbit/s) Coherent Optical Transmission over 160 km with an Optical Bandwidth of 5.4 GHz
Fiber optics communications Coherent communications
2010/6/5
We present the first demonstration of 256 QAM coherent optical transmission, where 64 Gbit/s polarization-multiplexed data at 4 Gsymbol/s were successfully transmitted over 160 km with an optical band...
Adaptive Self-Reconfigurable Network to Create Cost-Effective Bandwidth-On-Demand Services
Networks assignment routing algorithms
2010/6/5
We propose a novel path-provisioning algorithm that can cost-effectively create bandwidth-on-demand services. Its use of the ‘make before break’ rerouting technique reduces blocking probability while ...