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Journal of Lightwave Technology

Journal of Lightwave Technology


  • Vol. 28, Iss. 20 — Oct. 15, 2010
  • pp: 2977–2983

Analysis of Leakage Losses in One-Dimensional Photonic Crystal Coupled Resonator Optical Waveguide Using 3-D Finite Element Method

Yuki Kawaguchi, Kunimasa Saitoh, and Masanori Koshiba

Journal of Lightwave Technology, Vol. 28, Issue 20, pp. 2977-2983 (2010)

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We have evaluated leakage losses of one-dimensional photonic crystal coupled resonator optical waveguides (1-D PC-CROW) by using three-dimensional finite element method (3-D FEM). We propose structure of 1-D PC-CROW with shifted position of air-hole, changed size of air-hole, and changed air-hole depth. We have also proposed air-bridge 1-D PC-CROW and evaluated group velocity and leakage losses of these CROWs. Our numerical results show that 1-D PC-CROW has large leakage losses, especially for vertical direction, and the proposed structure can reduce leakage losses. Leakage loss of 1-D PC-CROW with changed air-hole depth is two order of magnitude lower compared with normal structure.

© 2010 IEEE

Yuki Kawaguchi, Kunimasa Saitoh, and Masanori Koshiba, "Analysis of Leakage Losses in One-Dimensional Photonic Crystal Coupled Resonator Optical Waveguide Using 3-D Finite Element Method," J. Lightwave Technol. 28, 2977-2983 (2010)

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