[7] Qi Rubin. Tianjin University, 2012.
[9] Reid J, EI-Sherbiny M, Garside B K. Appl. Optica Acta, 1980, (3): 575.
[10] Duffin K, McGettrick A J, Johnstone W, et al. J. Lightwave Technol., 2007, 25(10): 3114.
[11] Stewart G, Johnstone W, Bain J R P, et al. Journal of Lightwave Technology, 2011, 29: 811.
[12] Schilt S, Thevenaz L, Robert P. Appl. Opt., 2003, 42(33): 6728.
[13] Wang Q, Chang J, Song F J, et al. Appl. Opt., 2013, 52(26): 6445.