搜索结果: 1-15 共查到“光学工程 Compensation”相关记录59条 . 查询时间(0.031 秒)
Compensation of multimode fiber dispersion using adaptive optics via convex optimization
Interference between the optimal technology multimode fiber optimize the adaptive optics system spatial light modulator impulse response
2015/8/10
We propose a provably optimal technique for minimizing inter-symbol interference (ISI) in multimode fiber (MMF) systems using adaptive optics via convex optimization. We use a spatial light modulator ...
Experimental Demonstration of XPM Compensation for CO-OFDM Systems with Periodic Dispersion Maps
Fiber optics communications Modulation Nonlinear Optics fibers.
2015/5/26
We experimentally demonstrate compensation of XPM for CO-OFDM systems operating in a periodic dispersion map using a low-bandwidth compensator. The nonlinear threshold was increased by 4 dB in a 22.5 ...
Compensation of Nonlinear Effects Using Digital Coherent Receivers
Coherent communications Fiber optics communications
2015/5/26
Nonlinearity compensation in digital coherent receivers is feasible from a fundamental point of view. This paper shows that it is possible to reduce the computational load required for nonlinearity co...
Performance Improvement by Fibre Nonlinearity Compensation in 112 Gb/s PM M-ary QAM
Coherent communications Nonlinear optics fibers
2015/5/26
We demonstrate that digital back-propagation offers up to six-fold enhancement in transmission reach when nonlinear fibre impairments are compensated in coherently-detected 112 Gb/s PM m-ary QAM, with...
Real-time IQ Imbalance Compensation for Coherent Optical OFDM Transmission
Fiber optics links and subsystems Coherent communications
2015/5/25
A FPGA-based receiver side (Rx) IQ imbalance compensation scheme for 10.7-Gb/s 16-QAM CO-OFDM transmission is demonstrated in real time. The compensation scheme performs better with the increase of OS...
120-Gb/s PDM 64-QAM transmission over 1,280 km using multi-staged nonlinear compensation in digital coherent receiver
120-Gb/s PDM 64-QAM transmission multi-staged nonlinear compensation digital coherent receiver
2015/5/21
We succeed in the long-haul (1,280km) transmission of a 120-Gb/s PDM 64-QAM signal. The transmission distance was extended from 800 km to 1,280 km by a multi-stage nonlinear compensation technique tha...
Complexity versus Performance Tradeoff for Fiber Nonlinearity Compensation Using Frequency-Shaped, Multi-Subband Backpropagation
optics, fibers Nonlinear optical signal processing Wave propagation
2015/5/21
We investigate the use of an enhanced backpropagation algorithm where subbanding and frequency-shaping by pre- and post-filters are used in the calculation of nonlinearity to enable larger step sizes ...
On the efficiency of RF-Pilot-based nonlinearity compensation for CO-OFDM
efficiency RF-Pilot-based nonlinearity compensation CO-OFDM
2015/5/21
We investigate the efficiency of RF-pilot based phase noise compensation for mitigation of nonlinear impairments in CO-OFDM transmission. We show that the efficiency scales with the effective dispersi...
Pulsed Fiber-MOPA source operating at 1550 nm with pulse distortion pre-compensation
Pulsed Fiber-MOPA source operating pulse distortio pre-compensation
2015/5/20
In this paper we present a diode-seeded pulsed Fiber-MOPA source operating in the telecommunication band with pulse distortion pre-compensation using arbitrary shaped input pulses. 100 ns long flat-to...
Polarization-Insensitive Parametric Tunable Dispersion Compensation for Field Fiber Transmissions with Ultra-High-Definition Video Signals
Polarization-Insensitive Parametric Tunable Dispersion Compensation Ultra-High-Definition Video Signals
2015/5/15
We report a parametric TDC employing polarization diversity loop with a PM-HNLF.Stable transmissions under the dispersion-managed condition over 105-km field fiber are demonstrated using NRZ-OOK ultra...
Electronic phase conjugation for nonlinearity compensation in fiber communication systems
fiber communication systems nonlinearity compensation Electronic phase conjugation
2015/5/15
Electronic phase conjugation is proposed for nonlinearity compensation in fiber communications. Coherent detection and I/Q modulation are used to implement phase conjugation. Significant performance i...
Performance Comparison of 112 Gb/s PM-QPSK Transmission with NZ-DSF Dispersion Compensation Configurations for Lower Bit Rates
Dispersion Compensation Lower Bit Rates Performance Comparison
2015/5/14
We investigate transmission performance for 112 Gb/s PM-QPSK DWDM systems over NZ-DSF with configurations enabled by NZ-DSF dispersion characteristics. We find flexibility in dispersion compensation f...
Compensation of Cross-gain Modulation in Filtered Multi-channel Optical Signal Processing Applications
Fiber optics communications Phase modulation Radio frequency photonics
2015/6/10
We experimentally demonstrate compensation of nonlinearity due to cross-gain modulation in wideband analog systems employing narrow-band optical filtering, which is essential for multi-channel optical...
Efficient Frequency Domain Chromatic Dispersion Compensation in a Coherent Polmux QPSK-Receiver
Coherent communications Optical Communications
2015/6/10
We investigate frequency domain chromatic dispersion equalization in an ASIC for digital coherent signal processing. Improved chromatic dispersion tolerance can be achieved by using modified coefficie...
Electronic dispersion compensation by Hadamard transformation
Modulation Optical communications Dispersion
2015/6/10
We demonstrate that the Hadamard transform can be applied to look up table (LUT)-based predistorters to simultaneously compress and optimize the LUT for dispersion-limited links.