[1] A. S. Lalasangi,V. K. Kulkarni,I. I. Pattanshetti et al.. Bend induced loss in single mode fiber for designing simple interferometric temperature sensor [J]. J. Optoelectron. Adv. Mater.,2006,8(5):1901-1904

[2] D. Marcuse. Curvature loss formula for optical fibers [J]. J. Opt. Soc. Am.,1976,66:216-220

[3] C. Vassallo. Scalar-field theory and 2-D ray theory for bent singlemode weakly guiding optical fibers [J]. J. Lightwave. Technol.,1985,LT-3:416-423

[4] Y. Murakami,H. Tsuchiya. Bending losses of coated single-mode optical fibers [J]. IEEE J. Quant. Electron.,1978,QE-14(7):495-501

[5] H. Renner. Bending losses of coated single-mode fibers:a simple approach [J]. J. Lightwave. Technol.,1992,10(5):544-551

[6] L. Faustini,G. Martini. Bend loss in single-mode fibers [J]. J. Lightwave. Technol.,1997,15(4):671-679

[7] Q. Wang,G. Farrell,T. Freir. Theoretical and experimental investigations of macro-bend losses for standard single mode fibers [J]. Opt. Express,2005,13(12):4476-4484

[8] Q. Wang,G. Rajan,P. Wang et al.. Polarization dependence of bend loss for a standard singlemode fiber [J]. Opt. Express,2007,15(8):4909-4920

[9] R. Morgan,J. S. Barton,P. G. Harper et al.. Wavelength dependence of bend loss in monomode optical fibers:effect of the fiber buffer coating [J]. Opt. Lett.,1990,15(17):947-949

[10] F. M. Haran,K. Ono,J. S. Barton et al.. Bend loss oscillations in single mode optical fibre:higher order recoupling [J]. Opt. Commun.,1994,108:55-59

[11] R. Morgan,J. D. C. Jones,P. G. Harper et al.. Observation of secondary bend loss oscillations arising from propagation of cladding modes in buffered monomode optical fibres [J]. Opt. Commun.,1991,85(1):17-20

[12] U. S. Raikar,A. S. Lalasangi,V. K. Kulkarni et al.. Temperature dependence of bending loss in single mode communication fiber effect of fiber buffer coating[J]. Opt. Commun.,2007,273:402-406

[13] P. Wang,Y. Semenova,G. Farrell. Temperature dependence of macrobending loss in all-fiber bend loss edge filter [J]. Opt. Commun.,2008,281(17):4312-4316

[14] Cui Li,Zhao Jianlin,Zhang Xiaojuan et al.. Analysis of bending loss oscillations in photonic crystal fibers [J]. Acta Optica Sinica,2008,28(6):1172-1177

[15] Guo Xiarui,Yang Dexing,Zhao Jianlin et al.. Experimental investigation on the bending loss properties of photonic crystal fibers [J]. Acta Photonica Sinica,2007,36(10):1817-1820

[16] D. Yang,Y. Jiang,J. Zhao et al.. Measurement of low loss and mirrors′ reflectivity using cavity ring down spectroscopy with high accuracy[C]. SPIE,2006,6150:615007-1-615007-7

[17] Wang Chunmei,Li Jiong,Gong Tianlin et al.. Determination of the absolute absorption cross section of oxygen forbidden transition by cavity ring down spectroscopy [J]. Acta Optica Sinica,2007,27(11):2087-2090

[18] Tan Zhongqi,Long Xingwu,Huang Yun et al.. Etaloning effects in continuous-wave cavity ring down spectroscopy[J]. Chinese J. Lasers,2008,35(10):1563-1566

[19] T. von Lerber,M. W. Sigrist. Cavity-ring-down principle for fiber-optic resonators:experimental realization of bending loss and evanescent-field sensing [J]. Appl. Opt.,2002,41(18):3567-3575

[20] D. E. Vogler,A. Lorencak,J. M. Rey et al.. Bending loss measurement using a fiber cavity ringdown scheme [J]. Opt. Laser. Engng.,2005,43:527-535

[21] C. Wang,S. T. Scherrer. Fiber loop ringdown for physical sensor development:pressure sensor [J]. Appl. Opt.,2004,43(35):6458-6464

[22] Chunhua Dong,Yunfeng Xiao,Yong Yang et al.. Directly mapping whispering gallery modes in a microsphere through modal coupling and directional emission [J]. Chin. Opt. Lett.,2008,6(4):300-302