[1] [1] Borella M S, Jue J P, Ramamurthy B et al.. Optical components for WDM lightwave networks. Proc. IEEE, 1997, 85(8):1274～1307

[3] [3] Lin L Y, Goldstein E L, Tkach R W. Free-space micromachined optical switched with submillisecond switching time for large-scale optical crossconnects. IEEE Photon. Technol. Lett., 1998, 10(4): 525～527

[10] [10] Takashi Goh. Recent advances in large-scale silica-based thermo-optic switches. Proc. SPIE, 2001, 4582: 49～56

[11] [11] Riza N A. Reconfigurable wavelength add-drop filtering based on banyan network topology and ferroelectric liquid crystal fibre optic switches. J. Lightwave Technol., 1999, 17(9): 1575～1584

[12] [12] Cao Mingcui, Hu Qiaoyan, Wan Zhujun et al.. A novel routing optical matrix switching method. Opt. Commun., 2002, 204(1～6): 163～170

[13] [13] Riza N A, Yuan S. Low optical interchannel crosstalk, fast switching speed, polarization independent 2×2 fibre optic switch using ferroelectric liquid crystals. Electron. Lett., 1998, 34(13): 1341～1342

[14] [14] Cao Mingcui, Li Hongpu, Luo Fengguang et al.. Free-space regular optical interconnections: a mathematical analysis. Appl. Opt., 1994, 33(14): 2960～2967