[1] JEONG Y,SAHU J K,PAYNE D N,et al.Ytterbium-doped large-core fibet laser with 1.36 kW continuous wave output power[J].Optics Express,2004,12(25):6088-6092.
[3] AUGST S J,FAN T Y,SANCHEZ A.Coherent beam combining and phase noise measurements of ytterbium fiber amplifters[J].Opt Lett,2004,29:474-476.
[5] DAVIS M K,DIGONNET M J F,PANTELL R H.Thermal effects in doped fibers[J].IEEE J Lightwave Technology,1998,16(6):1013-1023.
[8] BROWN D C,HOFFMAN H J.Thermal,stress,and thcrmooptic effects in high average power double-clad silica fiber lasers[J].IEEE J Quantum Electronics,2001,37(2):207-217.
[9] BRUESSELBACH H,WANG S Q,MINDEN M,te al.Power-scalable phase-compensating fiber-array transceiver for laser communications through the atmosphere[J].J Opt Soc Am B.2005,22(2):347-353.
[10] HEURS M,QUETSCHKE V M,WILLKE B,et al.Simultaneously suppressing frequency and intensity noise in n Nd:YAG nonplanar ring oscillator by means of the current-lock technique[J].Optics Letters,2004,29(18):2148-2150.