Output beam propagation and beam quality from a multimode stable-cavity laser

The authors present experimental data for a high-power CO/sub 2/ laser which confirm the validity of a simple analysis for the beam divergence and beam quality of the output beam from a large-bore multimode stable-cavity laser oscillator. The multimode beam parameters can be accurately predicted from a simple theory using only the geometrical parameters of the stable resonator. The data also suggest that a laser of this type with a uniform gain profile across the tube bore oscillates preferentially in the highest order modes allowed by the laser cavity rather than, for example, equipartitioning the output power among all the allowed cavity modes. >

[1]  Generalized spot size for a higher-order beam mode , 1979 .

[2]  H M Lamberton,et al.  Beam divergence of a highly multimode CO2 laser , 1978 .

[3]  H. Kogelnik,et al.  Laser beams and resonators. , 1966, Applied optics.

[4]  W. Rigrod.  ISOLATION OF AXI‐SYMMETRICAL OPTICAL‐RESONATOR MODES , 1963 .

[5]  W. H. Carter,et al.  Spot size and divergence for Hermite Gaussian beams of any order. , 1980, Applied optics.

[6]  J Karkheck,et al.  Waist location and Rayleigh range for higher-order mode laser beams. , 1984, Applied optics.

[7]  D. Parker,et al.  Practical spot size definition for single higher-order rectangular-mode laser beams. , 1981, Applied optics.

[8]  Michael W. Sasnett,et al.  Beam characterization and measurement of propagation attributes , 1991, Photonics West - Lasers and Applications in Science and Engineering.

[9]  P. Bélanger,et al.  Beam propagation and the ABCD ray matrices. , 1991, Optics letters.

[10]  W. M. Steen,et al.  Measurement of the temporal and spatial power distribution of a high-power CO2 laser beam , 1982 .

[11]  Steven W. Townsend.  Large Multimode Stable Resonator Propagation , 1989, Photonics West - Lasers and Applications in Science and Engineering.

[12]  Properties of low order transverse modes in argon ion lasers. , 1969, Applied optics.

[13]  D. Parker,et al.  Higher-order CO(2) laser beam spot size and depth of focus determined. , 1981, Applied optics.

[14]  L C Andrews,et al.  Spot size and divergence for Laguerre Gaussian beams of any order. , 1983, Applied optics.

[15]  Tingye Li,et al.  Effect of gain saturation on the oscillating modes of optical masers , 1966 .

[16]  John P. Goldsborough,et al.  Beat Frequencies Between Modes of a Concave-Mirror Optical Resonator , 1964 .

[17]  C. Fabre,et al.  Ultrahigh-finesse optical cavities. , 1986, Optics letters.

[18]  S. N. Vlasov,et al.  Averaged description of wave beams in linear and nonlinear media (the method of moments) , 1971 .

[19]  Anthony E. Siegman,et al.  New developments in laser resonators , 1990, Photonics West - Lasers and Applications in Science and Engineering.

[20]  W. Bridges.  Divergence of high order Gaussian módes. , 1975, Applied optics.

[21]  O. Kafri,et al.  Direct determination of the number of transverse modes of a light beam. , 1983, Optics letters.