[1] NIU Y X,WANG Y F,LlU X,et al.Laser beam quality factor M2 and its measurement[J].Laser Technology,1999,23(1):38-41(in Chinese).
[2] DU X W.Factors for evaluating beam quality of a real high power laser on the target surface in far field[J].Chinese Journal of Laser,1997,A24(4):327-332 (in Chinese).
[3] WANG Y P,HUANG J Y,QIAO G L.A method for evaluating high energy laser beam quality[J].Journal of Optoelectronics· Laser,2001,12(10):1029-1033 (in Chinese).
[4] LIU Z J,LU Q S,ZHAO Y J.Study of evaluating beam quality of high energy lasers with unstable resonators[J].Chinese Journal of Laser,1998,A25(3):193 -196(in Chinese).
[5] ZHANG E T,JI X L,LU B D.Influence of atmospheric absorption in the inner optical system on the laser beam quality[J].Laser Technology,2006,30(1):96-98 (in Chinese).
[6] LUO Sh R,LU B D,HUANG L.The far-field intensity distribution and beam quality of unstable resonators[J].Laser Technology,1999,23(5):281-284 (in Chinese).
[7] SHENG Zh X,LI F M,GUO L,et al.Numerical analyses of thermal distortions of output window for high power lasers[J].Laser Journal,2005,26 (6):25-26 (in Chinese).
[8] BORN M,WOLF E.Principles of optics[M].7th ed.Beijing:Publishing House of Electronics Industry,2005:365 (in Chinese).