Thermally tunable microring resonator for self-collimated beams in photonic crystals
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IEEE
(0) (0 Votes)Views: (2000) Date: (Publication Date: 9-12 Nov. 20...) Pages: () -
Author: Xiaopeng Shen Kui Han Haishun Liu Haipeng Li Gang Tang Dept. of Phys. China Univ. of Min. & Technol. Xuzhou;
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Abstract: Abstract We demonstrate an ultra-compact thermally tunable microring resonator based on self-collimation effect in photonic crystals. Thermo-optical effect and the index of refraction changes due to temperature in microring resonator are used to manipulate dispersion quantity. Finite-difference time-domain method (FDTD) is used to investigate the characteristics of the microring resonator. The new design exhibits an ON-OFF contrast with an extinction ratio of more than 12 dB, an ultra-compact footprint of 3.3times3.3 mum2, and tuning efficiency of 0.08 nm/degC when it operates at the optical communication wavelength lambda =1.55 mum. The design presented may find applications in areas including ultra-compact optical switch and wavelength filer in integrated optical circuits.
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