[1] ORTAC B,HIDEUR A,CHARTIER T.Influence of cavity losses on stimulated brillouin scattering in a self-pulsing side-pumped ytterbium-doped double-clad fiber laser[J].Optics Commun,2003,215(6):389~395.
[2] HIEUR A,CHARTIER T,SANCHEZ F.Yb-doped double-clad fiber laser in a unidirectional ring cavity[J].SPIE,1998,4216:15~21.
[3] SHEN H,DING G L,WANG Y Sh et al.Simulation and experimental study of double-cladding Er-doped fiber lasers[J].Laser Technology,2006,31(1):70~72(in Chinese).
[4] OFFERHAUS H L,BRODERICK N G,RICHARDSON D J.High-energy single-transverse-mode Q-switched fiber laser based on a multimode large-mode-area erbium-doped fiber[J].Opt Lett,1998,23(21):1683~1685.
[5] GRIEBNER U,KOCH R,SCHÖNNAGEL H et al.Efficient laser operation with nearly diffraction-limited output from a diode-pumped heavily Nd-doped multimode fiber[J].Opt Lett,1996,21(4):266~268.
[6] SHI L,ZHAO Sh H,ZHOU W Y et al.Double-pass forward pumping broadband Er3+Yb3+ co-doped superfluorescent fiber source[J].Laser Technology,2006,30(2):148~151(in Chinese).
[7] WEAKLY D G.Guiding fibers[J].Appl Opt,1971,10(10):2252~2257.
[8] MARCUSE D.Curvature loss formula for optical fibers[J].J O S A,1976,66(3):216~220.
[9] MARCUSE D.Field deformation and loss caused by curvature of optical fibers[J].J O S A,1976,66(4):311~320.
[10] HE G Y,JIANG J X,LIU P.Theory of losses in bending of multi-mode fibers[J].Journal of Harbin University of Science and Technology,1997,2(5):91~96(in Chinese).
[11] LIU Y X,YANG X Y,CHEN X Q et al.Analysis of multimode fiber bending loss[J].Journal of Zhongshan University,2002,41(5):25~27(in Chinese).
[12] LIU J,FERDINAND P.Theoretical analysis of multimode fiber microbend attenuation and its application[J].Journal of Beijing University of Posts and Telecommunications,1994,17(1):56~60(in Chinese).
[13] DUES A L,SUNAK R D.Design consideration for minimization macrobending loss in erbium-doped fiber amplifiers[J].IEEE Photonics Technolohy Letters,1991,3(1):50~52.
[14] IJONMAAS.Beam-propagation analysis of loss in bent optical waveguides and fibers[J].J O S A,1983,73(12):1785~1791.