[1] [1] D J Richardson, J Nilsson, W A Clarkson. High power fiber lasers: current status and future perspectives［J］. J Opt Soc Am B, 2010, 27(11): B63-B92.

[2] [2] S I Kablukov, E A Zlobina, E V Podivilov, et al.. Output spectrum of Yb-doped fiber lasers［J］. Opt Lett, 2012, 37(13): 2508-2510.

[3] [3] S K Turitsyn, A E Bednyakova, M P Fedoruk, et al.. Modeling of CW Yb-doped fiber lasers with highly nonlinear cavity dynamics［J］. Opt Express, 2011, 19(9): 8394-8405.

[4] [4] Hao Zhijian, Lei Dajun, Zhao Chujun, et al.. Generation of mid-infrared supercontinuum in two cascaded fibers[J]. Chinese J Lasers, 2011, 38(1): 0105009.

[5] [5] Xi Xiaoming, Chen Zilun, Sun Guili, et al.. Dual-wavelength pumped supercontinuum generation in tapered photonic crystal fibers[J]. Acta Optica Sinica, 2011, 31(2): 0206001.

[6] [6] Liu Chu, Eric Ress, Toni Laurila, et al.. Experimental research on supercontinuum generation form nanosecond pulse and conventional single mode fiber[J]. Chinese J Lasers, 2011, 38(7): 0705003.

[7] [7] J T Manassah. Self-phase modulation of incoherent light［J］. Opt Lett, 1991, 15(6): 329-331.

[8] [8] S I Kablukov, E A Zlobina, Evgeniy V Podivilov, et al.. Modeling and measurement of ytterbium fiber laser generation spectrum［C］. SPIE, 2012, 8433: 843305.

[9] [9] Y I Khanin. Fundamentals of Laser Dynamics［M］. Cambridge: Cambridge International Science Publishing, 2006.

[10] [10] G P Agrawal. Nonlinear Fiber Optics［M］. San Diego: Academic Press, 2001.

[11] [11] D B S Soh, J P Koplow. Analysis of spectral broadening of incoherent light in optical fibers with nonzero dispersion［J］. Opt Engng, 2011, 50(11): 111602.

[12] [12] Marc-André Lapointe, Michel Piché. Linewidth of high-power fiber lasers［C］. SPIE, 2005, 7386: 73860.