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Improvement of the filtering performance of a heterostructure photonic crystal ring resonator using PSO algorithm

Chen Ying Wang Wen-Yue Yu Na

Improvement of the filtering performance of a heterostructure photonic crystal ring resonator using PSO algorithm

Chen Ying, Wang Wen-Yue, Yu Na
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  • Received Date:  23 July 2013
  • Accepted Date:  09 September 2013
  • Published Online:  05 February 2014

Improvement of the filtering performance of a heterostructure photonic crystal ring resonator using PSO algorithm

  • 1. Department of Automation Equipment, College of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China;
  • 2. Hebei Province Key Laboratory of Test/Measurment Technology and Instrument, Qinhuangdao 066004, China;
  • 3. Institute of information Science and Engineering, Yanshan University, Qinhuangdao 066004, China
Fund Project:  Project supported by the National Natural Science Foundation of China (Grant Nos. 61201112, 61172044), the Natural Science Foundation of Hebei Province, China (Grant Nos. F2013203250, F2012203169), and the China Postdoctoral Science Foundation (Grant No. 2012M510765).

Abstract: To improve the filtering performance of a heterostructure photonic crystal ring resonator filter, the filtering structural parameters were optimized globally by using particle swarm optimization (PSO) algorithm. By taking the square lattice photonic crystal ring resonator filter structure as the optimized object, according to the position-velocity updating formula of the PSO method, the radius of scattering rods, coupling rods, and internal rods at the photonic crystal defect were optimized globally. From the theoretical analysis and numerical simulation results, it can be seen that after the filter structural parameters were optimized, single narrowband filtering can be achieved. At the same time, its normalized transmission rate is increased from 53% to 97%, indicating the effectiveness of the optimization algorithm, which provides a basis for the application in photoelectric device.

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