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Because of its high transmission rate, Time and Wavelength Division Multiplexed Passive Optical Network (TWDM-PON) has become a particular research topic. Due to the wavelength flexibility and multiple user's access, it becomes necessary and imperative to consider the fairness between all the Optical Network Units (ONUs) so that we can improve the quality of service of the users. This fairness includes...
Multiple IFoF has long been a promising method to provide a high bandwidth efficient solution to connect remote radio unit and baseband unit pool in C-RAN architecture. To obtain stable performance, it is desirable to make frequency conversion and multiplexing in digital way, which makes ADC/DAC inevitable. In this work, we study the quantization noise and sampling jitter effect upon multi-IFoF system,...
A polarization converter (PC) based on the mode coupling in a hybrid plasmonic waveguide (HPW) is proposed. This PC comprises a Si core, a low index insulator layer surrounding the Si core, and two asymmetrically arranged Ag strips. Two orthogonal hybrid polarization modes are excited within the low index insulator layer. By exploiting the mode characteristics of these two hybrid polarization modes,...
In this paper, the haze attenuation of laser affects the performance of free space optical communication (FSOC). The Haze is regarded as coated particles, which considers haze as the inner and droplet aerosol as the outer core. Based on the coated scattering theory of Christian Mätzler, the scattering model of haze aerosols is established. According to the Meteorological Bureau, the fitting relationship...
We propose and numerically simulate a 2×2 Digital Optical Switch (DOS) based on silicon-on-insulator (SOI) adiabatic coupler for TE polarizations at 1550nm. The simulation results acquired by Beam-Propagation-Method (BPM) reveal that the cross-talk (CT) levels are below −27dB over a broadband of 60nm. Small simulated insertion-losses (ILs) below 0.1dB are obtained between the wavelengths 1520nm to...
At present, the power communication network has many evaluation indexes, but the existing OTN operation risk evaluation index is only a simple statistical index, and lack of analysis and evaluation and prediction of indicators. It is more important to optimize the software defined-optical transmission network (SD-OTN) performance and improve the network bandwidth. In order to explore the auxiliary...
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