搜索结果: 1-12 共查到“光学工程 Higher-order”相关记录12条 . 查询时间(0.171 秒)
Computer Generated Quadratic and Higher Order Apertures and Its Application on Numerical Speckle Images
Higher Order Modulated Apertures Speckle Imaging Resolution Point Spread Function
2013/1/30
A computer generated quadratic and higher order apertures are constructed and the corresponding numerical speckle images are obtained. Secondly, the numerical images of the autocorrelation intensity o...
Experimental verification of higher-order mode suppression in a bent large-mode-area multi-cladding fiber
Fiber design and fabrication iber properties
2015/6/9
A novel technique to suppress the higher-order mode in a bent large-mode-area triple-cladding fiber is experimentally presented. 3-dB suppression of LP 02 mode is observed on a fabricated triple-cladd...
Advanced Coherent Modulation Formats and Algorithms: Higher-Order Multi-Level Coding for High-Capacity System Based on 100Gbps Channel
Coherent communications Fiber optics communications
2015/6/5
We review recent technology advances in high-capacity 100Gbps system using polarization-division-multiplexed (PDM) eight-level coding (8PSK and 8QAM) and DSP-based intradyne detection.Research activit...
Simple suppression technique for higher-order mode amplification in bent large mode area triple-cladding fibers
Fiber design fabrication iber properties
2015/6/4
A novel technique to suppress the higher-order mode in bent LMA triple-cladding fibers is proposed. It is shown that the higher-order mode can be coupled to a cladding mode with only an adjustment of ...
Higher-order space charge field effects on the self-deflection of bright screening spatial solitons in two-photon photorefractive crystals
non-linear optics two-photon photorefractive effect bright screening spatial solitons self-deflection
2011/5/9
We investigate the effects of higher-order space charge field on the self-deflection of bright
screening spatial solitons due to two-photon photorefractive effects by a numerical method
under steady...
Sectioned Core Doping Effect on Higher-Order Mode Amplification in Yb-Doped Rod-Type Photonic Crystal Fibers
Sectioned Core Doping Effect Higher-Order Mode Amplification Yb-Doped Rod-Type Photonic Crystal Fibers
2015/7/16
The amplification properties of guided modes in Yb-doped rod-type photonic crystal fibers with sectioned core doping have been investigated, evaluating the doped-area radius which provides the effecti...
Supercontinuum Generation by Higher-order Mode Excitation in a Photonic Crystal Fiber
Supercontinuum Generation Higher-order Mode Excitation Photonic Crystal Fiber
2015/7/16
Higher-order-mode excitation experiments are interesting because the anomalous dispersion region is shifted towards smaller wavelengths and because the existence of a cut-off wavelength generates spec...
Optical Demultiplexing with Extinction Ratio Enhancement Based on Higher Order Parametric Interaction
Optical Demultiplexing Extinction Ratio Enhancement Based Higher Order Parametric Interaction
2015/7/14
We present the experimental demonstration of an all-optical demultiplexer for high speed OTDM data with optical regeneration capability. It is shown that higher order parametric interactions provide o...
Analysis of Double Rayleigh Scattering Noise in Higher-order Pumped Distributed Raman Amplifiers
Double Rayleigh Scattering Noise Higher-order Pumped Distributed Raman Amplifiers
2015/8/4
A theoretical analysis of double Rayleigh scattering (DRS) noise in higher-order Raman pumping schemes is presented. Simulations confirm an unexpected DRS noise decrease for pumping schemes above 3 rd...
DGD Estimation from FIR Filter Taps in Presence of Higher Order PMD
DGD Estimation FIR Filter Taps Higher Order PMD
2015/7/31
We estimate the DGD τ ( ω ) over the complete system bandwidth from FIR filter taps in coherent receivers with digital equalization, obtaining accurate DGD values even in presence of higher order PMD...
Characterizing Discrete and Distributed Scattering of Higher-Order- Modes in Large-Mode-Area Fibres
Characterizing Discrete Distributed Scattering Higher-Order- Modes Large-Mode-Area Fibres
2015/7/30
We characterize higher-order-mode content in large-mode-area fibres using spatially and spectrally resolved mode imaging. The technique is capable of distinguishing between discrete and distributed sc...
Solid low-bend-loss transmission fibers using resonant suppression of higher-order modes
transmission fibers resonant suppression higher-order modes
2015/7/30
Ring-assisted fibers suppress unwanted modes, improving the tradeoff that limits bend loss. Fabricated fibers achieve low bend loss and compatibility with standard fibers required for fiber to the hom...