搜索结果: 1-15 共查到“工学 Optical Transmission”相关记录27条 . 查询时间(0.157 秒)
Frequency-Domain Equalization for Coherent Optical Transmission Systems
Coherent communications Fiber optics links subsystems
2015/5/26
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...
Generation of Stable and High-Quality Multicarrier Source Based on Re-circulating Frequency Shifter for Tb/s Optical Transmission
Fiber optics communications Frequency modulation
2015/5/25
We theoretically and experimentally study the impact of implementation imperfections on the quality of multicarrier sources generated by re-circulating frequency shifting. Based on an optimized design...
Mitigation of Nonlinearities in Optical Transmission Systems
Mitigation Nonlinearities Optical Transmission Systems
2015/5/21
Nonlinear compensation with digital back-propagation can improve Q-factor by more than 1dB, proven by experiments. Simplification of propagation model is the key to suppress circuit size, whereas stra...
Optical Through-Hole With High Aspect Ratio for On-Board Optical Transmission
Optical Optical Transmission On-Board
2015/5/18
We developed optical I/Os in packages for chip-to-chip interconnections. The I/Os of 55-μm-diameter and 1.2-mm-long optical through-holes demonstrate low loss and 10-Gb/s transmission. This package ai...
Time-Resolved Error Vector Magnitude for Transmitter Mask Testing in Coherent Optical Transmission Systems
Time-Resolved Optical Transmission Systems Mask Testing
2015/5/15
We propose a novel transition-sensitive measurement approach for coherent optical systems. The time-resolved error vector magnitude (EVM), combined with mask testing, is a powerful tool for pass/fail ...
Coded Multidimensional Pulse Amplitude Modulation for Ultra-high-speed Optical Transmission
Coded Multidimensional Pulse Amplitude Modulation ltra-high-speed Optical Transmission
2015/5/15
We propose a coded N-dimensional pulse-amplitude modulation (ND-PAM) suitable for ultra-high-speed serial optical transport. The polarization-multiplexed-ND-PAM significantly outperforms corresponding...
Frequency Domain Equalization with Minimum Complexity in Coherent Optical Transmission Systems
Fiber optics links subsystems Optical communications
2015/6/10
For chip-design of a frequency-domain equalizer, a simple procedure to minimize the number of multiplications is shown. Considerations include recent improvements of FFT-algorithms.
Efficient Digital Backpropagation for PDM-CO-OFDM Optical Transmission Systems
Fiber optics communications Modulation
2015/6/9
We demonstrated experimentally that computationally-efficient digital nonlinearity compensation using backpropagation can increase the nonlinear tolerance of 61.7 Gb/s PDM-CO-OFDM by 2.2 dB in a 500 k...
A Triple-Concatenated FEC using Soft-Decision Decoding for 100 Gb/s Optical Transmission
Optical communications
2015/6/8
We propose a novel triple-concatenated forward error correction for 100Gb/s transmission. Simulation shows that a net coding gain of 10.8dB is obtained by a soft-decision LPDC code concatenated with t...
Concatenated QC-LDPC and SPC Codes for 100 Gbps Ultra Long-Haul Optical Transmission Systems
Fiber optics communications Optical communications
2015/6/8
We propose and investigate a novel FEC coding scheme based on a concatenation of QC-LDPC with single-parity-check codes. High performance of a Q-limit of 5.8 dB with 20.5% overhead has been achieved w...
140 Gbit/s Coherent Optical Transmission over 150 km with a 10 Gsymbol/s Polarization-Multiplexed 128 QAM Signal
Fiber optics communications Coherent communications
2015/6/8
We demonstrate a 140 Gbit/s coherent optical transmission over 150 km with a polarization-multiplexed 10 Gsymbol/s, 128 QAM format in a 20 GHz bandwidth. Error-free 120 Gbit/s-150 km transmission is a...
Coded Polarization-Multiplexed Iterative Polar Modulation (PM-IPM) for Beyond 400 Gb/s Serial Optical Transmission
Fiber optics and optical communications Modulation Iterative polar modulation Forward error correction Low-density parity-check codes
2015/6/5
We propose a coded polarization-multiplexed iterative polar modulation (PM-IPM) as an enabling coded-modulation scheme for beyond 400Gb/s serial optical transmission. We demonstrate that the proposed ...
256 QAM (64 Gbit/s) Coherent Optical Transmission over 160 km with an Optical Bandwidth of 5.4 GHz
Fiber optics communications Coherent communications
2015/6/5
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...
100G Coherent DWDM Transponder Module Enabling Seamless Upgrade of Long Haul Optical Transmission Systems
Optical communications Coherent communications
2015/6/5
We review recent trends and progress in 100G module and subsystem development for long haul DWDM applications and explore similarities and differences between these 100G products and those developed a...
107Gb/s DPSK-3ASK Optical Transmission over SSMF
Optical communications Phase modulation Modulation
2015/6/4
We report on the transmission of a 107Gb/s DPSK-3ASK optical channel over 335km fiber (SSMF). DPSK-3ASK is targeted to meet the requirements of a metro network.