Study of Beam Propagation and Focus of a High Power CO2Laser with a Phase Shift Analysis

[in Chinese]; [in Chinese]; [in Chinese]

[1] M. Essian, P. W. Fuerschbach. Beam characterization of a materials processing CO2 laser. Welding Journal, 1996, February: 47s～54s

[2] O. O. Diniz Neto, C. A. S. Lima. Nonlinear three-dimensional temperature profiles in pulsed laser heated solids. J. Phys. D; Appl. Phys.,1994,27(9):1795～1809

[3] D. Schuoecker. Heat conduction and mass transfer in laser cutting, laser technologies in industry. SPIE, 1988,952: 592-599

[4] R. Ifflander,H. Weber. Focusing of multimode laser beams with variable beam parameters. Optica Acta, 1986,33(8): 1083～1090

[5] H. Weber. Focusing and imaging of laser beams. Opt. Commun.,1987,62(2):124～126

[6] John P. Goldsborough. Beat frequencies between modes of a concave-mirror optical resonator. Appl. Opt.,1969,3(2):267～275

[7] Rolf Gase. The multimode laser radiation as a Gaussian schcll model beam. J. of Modern Opt.,1991,38(6): 1107～1115

[8] H. Kogelnik, T. Li. Laser beams and resonators. Appl. Opt.,1966,5(10): 1550～1566

[9] J. R. Ficnup. Phase retrieval algorithms: a comparison. Appl. Opt.,1982,21(15):2758～2769