[1] [1] Dong Xiaowei, Feng Suchun, Lu Shaohua, et al.. Add-drop channel filter based on two parallel long-period grating coupler[J]. Acta Physica Sinica, 2007, 56(12): 7039-7045.

[2] [2] Zhang Juan, Yang Xiaowei, Yu Shuai. Design of asymmetrical optical interleavers with arbitrary duty cycles based on Michelson Gires-Tournois interferometer[J]. Chinese J Lasers, 2010, 37(1): 155-161.

[3] [3] Liu Jing, Sun Junqiang, Huang Chongqing, et al.. Study of dense wavelength division multiplexing based on graded-index photonic quantum well structure[J]. Acta Photonica Sinica, 2007, 36(12): 2350-2354.

[4] [4] Yang Jianyi, Jiang Xiaoqing, Jia Kemiao, et al.. 2D-AWG based optical multiplexers/demultiplexers [J]. Journal of Optoelectronics· Laser, 2004, 15(9): 1031-1034.

[5] [5] Liu Zhuolin, Zhang Weigang, Jiang Meng, et al.. Configuration and development of fiber optical filter[J]. Chinese J Lasers, 2009, 36(3): 540-546.

[6] [6] Zheng Chuantao, Luo Qianqian, Huang Xiaoliang, et al.. Analysis and simulation of an ultra-compact polymer five-port optical router[J]. Acta Optica Sinica, 2014, 34(3): 0313001.

[7] [7] Yun Binfeng, Hu Guohua, Cui Yiping, et al.. Polymer micro-ring resonator filter with high quality factor[J]. Acta Optica Sinica, 2011, 31(10): 1013002.

[8] [8] Hong Jianxun, Liu Ying, Chen Wei. Researches on the silicon slot microring resonator and its tunable properties[J]. Journal of Optoelectronics·Laser, 2014, 25(9): 1668-1672.

[9] [9] Li Shuai, Wu Yuanda, Yin Xiaojie, et al.. Tunable filters based on SOI microring-resonator[J]. Acta Photonica Sinica, 2011, 40(8): 1143-1148.

[10] [10] Zhang Bin, Zhang Shumei. Design method of optical filter based on semiconductor micro-ring resonator[J]. Novel Semiconductor Device, 2012, 37(1): 24-28.

[11] [11] Yang Jianyi, Jiang Xiaoqing, Wang Minghua, et al.. Characteristics and limitations of optical filters employing single-ring microresonators[J]. Journal of Optoelectronics·Laser, 2003, 14(1): 12-16.

[12] [12] Liu Wenkai, Zhao Ranyue, Dong Xiaowei. Design of series-coupled Chebyshev microring filters[J]. Acta Photonica Sinica, 2014, 43(3): 38-42.

[13] [13] B E Little, S T Chu, P P Absil, et al.. Very high-order microring resonator filters for WDM applications[J]. IEEE Photon Technol Lett, 2004, 16(10): 2263-2265.

[14] [14] D L Macfarlane, M P Christensen, K Liu, et al.. Four-port nanophotonic frustrated total internal reflection coupler[J]. IEEE Photon Technol Lett, 2012, 24(1): 58-60.

[15] [15] Liu Ke, Mu Sixuan, Huang hui, et al.. Design and simulation of silicon-based rectangular Mach-Zehnder 2×2 thermo-optical switch [J]. Acta Photonica Sinica, 2014, 43(2): 14-19.

[16] [16] K Liu, H Huang, S Mu, et al.. Ultra-compact three-port trench-based photonic couplers in ion-exchanged glass waveguides[J]. Opt Commun, 2013, 309: 307-312.

[17] [17] A E Nagdi, K Liu, T P LaFave Jr, et al.. Active integrated filters for RF-photonic channelizers[J]. Sensors, 2011, 11(12): 1297-1320.

[18] [18] J Hong, Y Enami. Modeling and analysis of microring resonator modulators with feedback waveguide coupling[J]. J Lightwave Technol, 2011, 29(21): 3243-3249.

[19] [19] L Zhou, A W Poon. Electrically reconfigurable silicon microring resonator-based filter with waveguide-coupled feedback[J]. Opt Express, 2007, 15(15): 9194-9204.

[20] [20] X Zhang, T Zhang, X Xue, et al.. Tunable optical ring resonator integrated with asymmetric Mach-Zehnder interferometer[J]. J Lightwave Technol, 2010, 28(17): 2512-2520.

[21] [21] Li Jinxing, Chen Kaixin, Zheng Yanlin. A novel asymmetric interleaver with arbitrary bandwidth ratio based on planar optical waveguide[J]. Chinese J Lasers, 2012, 39(11): 1105005.

[22] [22] Lu Huaiwei, Zhang Baoge, Wu Kaijun, et al.. Design of all-fiber interleaver with unequal passband based on cascaded Mach-Zehnder interferometer[J]. Acta Optica Sinica, 2010, 30(8): 2406-2411.

[23] [23] J Feng, Q Li, Z Zhou. Single ring interferometer configuration with doubled free-spectral range[J]. IEEE Photon Technol Lett, 2011, 23(2): 79-81.

[24] [24] Li Zhiquan, Li Xiaoyun, Sun Yuchao, et al.. Doubled free spectral range of single micro-ring resonator filter[J]. Acta Optica Sinica, 2012, 32(7): 0723001.

[25] [25] Y Qian. Compact Trench Based Bend and Splitter Devices for Silicon-on Insulator Rib Waveguides[D]. Utah: Brigham Young University, 2009.