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Optimization of T-shaped waveguide branches in two-dimensional photonic crystals 被引量：1

Optimization of T-shaped waveguide branches in two-dimensional photonic crystals
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摘要 The interval and the radius of a pair of defect dielectric rods in waveguide channels near the branching region of a T-shaped waveguide branches are simultaneously varied, and their effects on the transmission properties are investigated using the finite-difference time-domain （FDTD） method. Numerical results show that there is an optimized region where the relative bandwidth of high-transmission （total transmittance ≥0.95） band of the branches is larger than 17%, which is higher than that of the existing same structures （11.60%） with fixed interval. These results provide for engineering application of simple T-shaped waveguide branches with high transmission. The interval and the radius of a pair of defect dielectric rods in waveguide channels near the branching region of a T-shaped waveguide branches are simultaneously varied, and their effects on the transmission properties are investigated using the finite-difference time-domain （FDTD） method. Numerical results show that there is an optimized region where the relative bandwidth of high-transmission （total transmittance ≥0.95） band of the branches is larger than 17%, which is higher than that of the existing same structures （11.60%） with fixed interval. These results provide for engineering application of simple T-shaped waveguide branches with high transmission.
作者 黄琳 陈兵 李永东 刘纯亮
机构地区 Key Laboratory of Physical Electronics and Devices of the Ministry of Education
出处 《Chinese Optics Letters》 SCIE EI CAS CSCD 2012年第1期38-40,共3页 中国光学快报（英文版）
基金 partially supported by the National Natural Science Foundation of China under Grant No.61007027
关键词 Finite difference time domain method OPTIMIZATION Finite difference time domain method Optimization
分类号 TN252 [电子电信—物理电子学] TM410.11 [电气工程—电器]
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参考文献16

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同被引文献14

  • 1Baghsiahi H,Wang K,Kandulski W,et al.Optical waveguide end facet roughness and optical coupling loss[J].Journal of Lightwave Technology,2013,31(16):2959-2968.
  • 2Marcatili E A J.Improved coupled-mode equations for dielectric guides[J].IEEE Journal of Quantum Electronics,1986,22(6):988-993.
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  • 4Jin J.The finite element method in electromagnetics[M].New York:John Wiley&Sons Inc,2002.
  • 5Fujisawa T,Koshiba M.Full-vector finite-element beam propagation method for three-dimensional nonlinear optical waveguides[J].Journal of Lightwave Technology,2002,20(10):1876-1884.
  • 6Fujisawa T,Koshiba M.Time-domain beam propagation method for nonlinear optical propagation analysis and its application to photonic crystal circuits[J].Journal of Lightwave Technology,2004,22(2):684-691.
  • 7Obayya S S A.Effieient finite-element-based time-domain beam propagation analysis of optical integrated circuits[J].IEEE Journal of Quantum Electronics,2004,40(5):591-595.
  • 8樊心民,郑义,孙启兵,王冠军,曾灏宪,邴丕彬,任怀远.90／10刀口法测量激光高斯光束束腰的实验研究[J].激光与红外,2008,38(6):541-543. 被引量：14
  • 9杨晓冬,邵建新,廖生鸿,谭锦业,周杰,蒋跃文.刀口法测量高斯光束光斑半径研究[J].激光与红外,2009,39(8):829-832. 被引量：23
  • 10武红,蒋立勇,李海鹏,贾巍,郑改革,强海霞,李相银.A concave photonic crystal waveguide with a corrugated surface for high-quality focusing[J].Chinese Optics Letters,2011,9(1):56-59. 被引量：1

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Chinese Optics Letters
2012年 第1期

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