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Design and analysis of multi-channel drop filter using dual L defected hexagonal photonic crystal ring resonator

Digital Communications and Networks 2020年第1期6卷 136-143页

作者： D.Saranya Shoba Mohan A.Rajesh school of electronics and engineering vit universityvelloreindia college of science and engineering hamad bin khalifa universitydohaqatar

In this paper,dual L defected hexagonal photonic crystal ring resonator(PCRR)using Channel Drop Filter(CDF)is designed for Coarse Wavelength Division Multiplexing(CWDM)*** this structure,the external rods of the ring resonator are arranged in a hexagon and the internal rods are removed in L arrangement for introducing *** rods are used to prevent *** using the L defected hexagonal resonator,a multi-channel CDF is designed,which exhibits multiple wavelengths of CWDM(1500 nm–1600 nm)*** addition,the selection of rod size and the position of rods in the proposed multi-channel CDF are validated by varying the radius of coupling and scattering rods,as well as the position of resonators,*** using plane wave expansion and opti Finite Difference Time Domain(FDTD)method,the electromagnetic wave propagation and the photonic band gap are obtained.

关键词： Channel drop filter photonic crystal ring resonator Coarse wavelength division multiplexing Finite difference time domain

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Novel Design of ring resonator Based Temperature Sensor Using photonics Technology

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photonic Sensors 2017年第4期7卷 311-316页

作者： Mas soudi RADHOUENE Mayur Kumar CHHIPA Monia NAJJAR S. ROBINSON Bhuvneshwer SUTHAR University of Tunis El Manar National Engineering School of Tunis Communications Systems LR-99-ES21(LR-Sys'Com-ENIT) Tunis 1002 Tunisia Department of Electronics & Communication Engineering K L University Guntur Andhra Pradesh 522502 India University of Tunis El Manar Higher Institute of Computer Ariana 2080 Tunisia Department of Electronics & Communication Engineering Mount Zion College of Engineering and TechnologyPudukkottai Tamil Nadu 622507 India Department of Physics Govt. Engineering College Bikaner Rajasthan 334004 India

In the present paper, we study the transmission of the two-dimensional photonic crystal （PC） superellipse ring resonator. The fast growing applications of optomechanical systems lead to strong demands in new sensing mechanism in order to design the sensing elements to nanometer scale. The photonic crystal based resonator has been investigated as promising solutions because the band gap structure and resonator characteristics are extremely sensitive to the deformation and position shift of rod/cavity in PC resonators. This structure opens a single channel filter. The study is extended for tuning of channel filter＇s wavelength with a temperature of this structure. The transmission of the channel filter shows a red shift with temperature linearly. This wavelength shift of the channel filter is used for the sensor application. The sensitivity for the proposed structure is found to be 65.3pm/℃. The outstanding sensing capability renders PC resonators as a promising optomechanical sensing element to be integrated into various transducers for temperature sensing applications.

关键词： photonic crystal ring resonator temperature sensor finite difference time domain PWE method

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