搜索结果: 1-15 共查到“知识库 光学仪器及技术 Systems over”相关记录52条 . 查询时间(0.327 秒)
Frequency-Domain Equalization for Coherent Optical Transmission Systems
Coherent communications Fiber optics links subsystems
2011/5/26
Frequency-domain equalization (FDE) has been attracting much attention for high-speed long-haul transmission over fiber-optic channels. Two FDE configurations for coherent optical transmission are pre...
Unaltered Optical Fiber as an Absolute Wavelength Reference for OFDR Systems
Interferometry Phase measurement
2011/5/25
We present a novel method of obtaining an absolute wavelength reference for OFDR measurements using Rayleigh backscatter from standard optical fiber. We report 1 GHz (8pm)accuracy.
Cost-Effective and Power-Efficient Extended-Reach WDM/TDM PON Systems
Cost-Effective Power-Efficient Extended-Reach WDM/TDM PON Systems
2011/5/21
We propose a remote channel combine/split module for extended-reach WDM/TDM PON systems to significantly reduce initial investment with saving up to 60% and achieve good power efficiency when fully lo...
A Novel Dispersion and PMD Tolerant Clock Phase Detector for Coherent Transmission Systems
Novel Dispersion PMD Tolerant Clock Phase Detector Coherent Transmission Systems
2011/5/20
A novel clock phase detector is presented and shown to be tolerant to chromatic dispersion and PMD. The phase detector can be used in a clock recovery circuit for demodulation of 100 Gb/s coherent tra...
7dB Optical Power Budget Improvements of 11.25Gb/s Optical OFDM PON Systems Using Optical Filters
7dB Optical Power Budget Improvements 11.25Gb/s Optical OFDM PON Systems Optical Filters
2011/5/20
Wavelength offset super Gaussian optical filters enable 7dB increases in optical power budget of 11.25Gb/s optical OFDM PON systems using directly modulated DFBs, considerably relax filter bandwidth r...
7dB Optical Power Budget Improvements of 11.25Gb/s Optical OFDM PON Systems Using Optical Filters
7dB Optical Power Budget Improvements 11.25Gb/s Optical OFDM PON Systems Optical Filters
2011/5/20
Wavelength offset super Gaussian optical filters enable 7dB increases in optical power budget of 11.25Gb/s optical OFDM PON systems using directly modulated DFBs, considerably relax filter bandwidth r...
Present State of Standards for Ethernet PON Systems
Ethernet PON Systems Present State of Standards
2011/5/18
The past decade has witnessed a transformation of EPON from a research novelty into a mainstream broadband access technology. As EPON wins new ground and replaces older technologies, more and more SDO...
System Impairments and Performance Implications of ASE Seeded WDM PON Systems
ASE Seeded WDM PON Systems Performance Implications System Impairments
2011/5/18
Systematic analysis of various impairments in ASE seeded WDM PONs is presented and transmission performance limitations are determined in this paper. From a system perspective,characteristics of color...
PON Test Systems–From theory to field deployments
field deployments theory PON Test Systems
2011/5/18
This paper presents the first feedback from field experiments of remote fiber testing systems using U band, new High Resolution OTDR and Out-of-band reflective markers installed on the ONT side.
Significant Overhead Reduction of Multi-band Tb/s Coherent Optical OFDM Systems
Multi-band Tb/s Coherent Optical OFDM Systems Overhead Reduction
2011/5/15
The timing and optical laser phase of individual bands in multi-band OFDM are correlated. We significantly reduce the OFDM overhead through using FFT window synchronization for channel estimation and ...
Impact of PMD and Nonlinear Phase Noise on the Global Optimization of DPSK and DQPSK Systems
Optical communications Phase modulation Nonlinear optics fibers
2010/6/10
Usingaglobaloptimizationalgorithm,wemaximizethereachofDPSKandDQPSKsys-tems including PMD and nonlinear phase noise at data rates ranging from 5Gbit/s to 230Gbit/s.
High-Speed Optical Transceiver and Systems for Optical Interconnects
Optical devices Optical interconnects
2010/6/9
Demand for higher data throughput and higher interconnect densities in servers and routers for IT network systems is growing quickly. Optical interconnects have both speed and high-density. There are ...
A Dual-Peak Optical Demultiplexer in 60GHz-band Radio over Fiber Systems
Multiplexing Fiber Bragg gratings
2010/6/8
A dual-peak optical demultiplexer based on sampled and phase-shifted fiber Bragg grating was proposed and the impact of group delay is discussed. The demultiplexer is experimentally demonstrated and a...
OFDM vs. OOK with MLSD for IM/DD Systems
Fiber optics communications Fibers single-mode Modulation
2010/6/8
We compare the performance of direct-detection OFDM techniques using optimized power allocations to the performance of OOK with MLSD in amplified direct-detection systems using single-mode fiber.
Impact of Polarization-mode Dispersion on Wavelet Transform Based Optical OFDM Systems
Fiber optics communications Modulation
2010/6/4
The impact of PMD on wavelet transform based optical OFDM (WTO-OFDM) systems is investigated. Simulations show that WTO-OFDM is very sensitive to PMD. A 1-dB penalty at 5-ps DGD is incurred for 112-Gb...