[1] [1] LI Shuai, WU Yuan-da, YIN Xiao-jie, et al. Tunable filters based on SOI microring-resonator［J］. Acta Photonica Sinica, 2011, 40(8): 1143-1148.

[2] [2] LIU Xin, KONG Mei, WANG Xue-ping. Influence of loss on filtering characteristics of series coupled two-microring resonators［J］. Acta Photonica Sinica, 2011, 40(2): 247-250.

[3] [3] LIANG D, FIORENTINO M, SRINIVASAN S, et al. Low threshold electrically-pumped hybrid silicon microring lasers［J］.IEEE Journal of Selected Topics in Quantum Electronics, 2011, 17(6): 1528-1533.

[4] [4] CHO S Y, JOKERST N M. Integrated thin film photodetectors with vertically coupled microring resonators for chip scale spectral analysis［J］. Applied Physics Letters, 2007, 90: 101105.

[5] [5] NITKOWSKI A, CHEN L, LIPSON M. Cavity-enhanced on-chip absorption spectroscopy using microring resonators［J］. Optics Express, 2008, 16(16): 11930-11936.

[6] [6] WEN Y H, KUZUCU O, HOU T, et al. All-optical switching of a single resonance in silicon ring resonators［J］. Optics Letters, 2011, 36(8): 1413-1415.

[7] [7] YAN Xin, MA Chun-sheng, WANG Xiao-yin, et al. Simulation and optimization of polymer electro-optic microring resonator switches［J］. Acta Photonica Sinica, 2008, 37(12): 2374-2378.

[8] [8] FERERA M, PARK Y, RAZZARI L, et al. On-chip CMOS-compatible all-optical integrator［J］. Nature Communications, 2010, 1(29): 1-5.

[9] [9] QIANG Z, ZHOU W, SOREF R A. Optical add-drop filters based on photonic crystal ring resonators［J］. Optics Express, 2007, 15(4): 1823-1831.

[10] [10] QIANG Z, SOREF R A, ZHOU W, Photonic crystal ring resonators: characteristics and applications［J］. Journal of Nanoscience and Nanotechnology, 2010, 10(3): 1495-1507.

[11] [11] WU Li-heng, WANG Ming-hong, XU Ming-xing. Broadband photonic crystal add-drop filter［J］. Journal of Applied Optics, 2011, 32(4): 623-629.

[12] [12] KUMAR V D, SRINIVAS T, SELVARAJAN A. Investigation of ring resonators in photonic crystal circuits［J］. Photonics and Nanostructures: Fundamentals and Applications, 2004, 2(3): 199-206.

[13] [13] JEONG S H, SUGISAKA J I, YAMAMOTO N, et al. Resonant characteristics in a two-dimensional photonic crystal ring resonator with a triangular lattice of air holes［J］. Japanese Journal of Applied Physics, 2007, 46(22): L534-L536.

[14] [14] CHIU W Y, HUANG T W, WU Y H, et al. A photonic crystal ring resonator formed by SOI nano-rods［J］. Optics Express, 2007, 15(23): 15500-15506.

[15] [15] OGUSU K, TAKAYAMA K, Optical bistability in photonic crystal microrings with nonlinear dielectric materials［J］. Optics Express, 2008, 16(10): 7525-7539.

[16] [16] MA Z, OGUSU K. Channel drop filters using photonic crystal Fabry-Perot resonators［J］. Optics Communications, 2011, 284(5): 1192-1196.

[17] [17] OSKOOI A F, ROUNDY D, IBANESCU M, et al. Meep: A flexible free-software package for electromagnetic simulations by the FDTD method［J］. Computer Physics Communications, 2010, 181(3): 687-702.