[1] [1] Zhao Yu, Jin Yongxing, Dong Xinyong, et al.. Experimental studies of multimode interference based fiber optic refractive index sensors［J］. Chinese J Lasers, 2010, 37(6): 1516-1519.

[2] [2] Wang Jieyu, Tong Zhengrong, Yang Xiufeng, et al.. Simultaneous measurement of temperature and refraction index based on multimode interference and long-period fiber grating［J］. Chinese J Lasers, 2012, 39(9): 0905003.

[3] [3] Sun Hao, Hu Manli, Qiao Xueguang, et al.. Fiber refractive index sensor based on fiber core mismatch multimode interference［J］. Chinese J Lasers, 2012, 39(2): 0205001.

[4] [4] Q Wang, G Farell. Multimode fibre based edge filter for optical wavelength measurememt application［J］. Micro Opt Technol Lett, 2006, 48(5): 900-902.

[5] [5] A Mehta, W S Mohammed, E G Johnson. Multimode interference based fiber optic displacement sensor［J］. IEEE Photon Technol Lett, 2003, 15(8): 1129-1131.

[6] [6] W S Mohammed, A Mehta, E G Johnson. Wavelength tunable fibre lens based on multimode interference［J］. J Lightwave Technology, 2004, 22(2): 469-477.

[7] [7] Q Wang, G Farrell, W Yan. Investigation on singlemode-multimode-singlemode fibre structure［J］. J Lightwave Technol, 2008, 26(5): 512-519.

[8] [8] W S Mohammed, P W Smith, X Gu. All-fibre multimode interference bandpass filter［J］. Opt Lett, 2006, 31(17): 2547-2549.

[9] [9] Q Wang, G Farrell. All-fibre multimode-interference based refractometer sensor: proposal and design［J］. Opt Lett, 2006, 31(3): 317-319.

[10] [10] H Li, M Brio, A Schulz, et al.. Multimode interference in circular step-index fibers studied with the mode expansion approach［J］. J Opt Soc Am B, 2007, 24(10): 2707-2720.

[11] [11] Amnon Yariv. Optical Electronics in Modern Communications (5th Edition) ［M］. Chen Heming, Shi Weihua, Zhang Li, et al. Transl.. Beijing: Publishing House of Electronics Idustry, 2004. 59-90.

[12] [12] E Snitzer. Cylindrical dielectric waveguide modes［J］. J Opt Soc Am, 1961, 51(5): 491-498.

[13] [13] Zhao Shanghong, Zhan Shengbao, Shi Lei. High Power Fiber Laser Technology［M］. Beijing: Science Press, 2009. 19-61.