[1] [1] Abrams R L. Coupling losses in hollow waveguide laser resonators. IEEE J. Quant. Electron., 1972, QE-8(11):838～843

[2] [2] Degnan J J, Hall D R. Finite-aperture waveguide laser resonators. IEEE J. Quant. Electron., 1973, QE-9(9):901～910

[3] [3] Hill C A, Hall D R. Coupling loss theory of single-mode waveguide resonators. Appl. Opt., 1985, 24(9):1283～1289

[4] [4] Avirillier S, Verdonck J. Coupling losses in laser resonators containing a hollow rectangular dielectric waveguide. J. Appl. Phys., 1977, 48(12):4937～4941

[5] [5] Boulnois J L. Mode discrimination and coupling losses in rectangular-waveguide resonators with conventional and phase-conjugate mirrors. J. Opt. Soc. Am., 1982, 72(7):853～860

[6] [6] Efrlichmann D, Habich U, Plum H D et al.. High power CO2 laser with coaxial waveguide and diffusion cooling. IEEE J. Quant. Electron., 1993, QE-29(7):2211～2219

[7] [7] Efrlichmann D, Habich U, Plum H D et al.. Azimuthal mode discrimination of annular resonators. Appl. Opt., 1993, 32(33):6582～6586

[8] [8] Bochum H. Near- and far-field properties of annular CO2 waveguide lasers. Appl. Opt., 1997, 36(15):3349～3356

[9] [9] Abrams R, Chester A. Resonator thoery for hollow waveguide lasers. Appl. Opt., 1974, 13(9):2117～2125

[10] [10] Wittrock U, Weber H. Inside-pumped Nd:YAG tube laser. Opt. Lett., 1991, 16(14):1092～1094