Silica photonic crystal fiber structure in order to simplify the process of making them
Journal Title: روش های هوشمند در صنعت برق - Year 2014, Vol 5, Issue 17
Abstract
In this research, a new structure of photonic crystal fibers(PCFs) will be proposed,in which instead of using the aire- holes in the cladding region, the flourine(2%) doped solid silica rods in order to reduce the problems associated with deformities of air-holes in the cladding region will be used.Also, in the following, a few of the propagation charactristics of the proposed Photonic Crystal Fiber with a conventional silica Photonic Crystal Fiber such as, Normalized frequency,effective refractive index,total dispersion and higher order dispersions ( Group velocity dispersion and Third Order Dispersion) will be analyzed and compared. Finally it will be observed that, the proposed PCF structure is much simpler than the conventional one in the fabrication process. But they are not suitable for femtosecond solitons propagation .Also, it will be shown that, the situation of the conventional Photonic Crystal Fiber is much better than the proposed structure in the femtosecond optical solitons propagation.
Authors and Affiliations
Ashkan Ghanbari, Mehran Nikoo
Wavelet Packet Entropy in Speaker-Independent Emotional State Detection from Speech Signal
In this paper, wavelet packet entropy is proposed for speaker-independent emotion detection from speech. After pre-processing, wavelet packet decomposition using wavelet type db3 at level 4 is calculated and Shannon entr...
Optimal Control of Micro-grid (MG) to Improve Voltage Profile Including Combined Heat and Power System
Usually, in the studies of optimal control for the micro-grid with combined heat and power (CHP), economic and environmental goals have been raised. In these studies, the optimization of control devices and compensators...
Ultra low voltage and low power 4-2 compressor using FinFET transistors
A compressor is basic building blocks of many arithmetic circuits. Design of smaller area, low power consumption and high speed compressor is always in demand. As the channel length approaches nanometer scale, the use of...
Determination of Optimum Performance Strategy of Energy Storage in Power System
Determination of optimal capacity for today energy storages has been specially noticed. The delay in increasing storage production capacity is one of the applications for energy storage supplies in which utilization from...
Evaluation of Starting Current of Induction Motors Using Artificial Neural Network
Induction motors (IMs) are widely used in industry including it be an electrical or not. However during starting period, their starting currents are so large that can damage equipment. Therefore, this current should be e...