example Material parameters (Default values, if the dialog ''Crystal, Pump Beam And Mat.Par.'' was not opened) Yb:YAG Thermal conductivity, W/(mmK): 7.E-3 7.E-3 7.E-3 Coefficient of thermal expansion, 1/K: 7.E-6 7.E-6 7.E-6 Elastic modulus, N/mm^2 310000. 310000. 310000. Poisson's ratio xy yz xz : 0.25 0.25 0.25 Refractive Index 1.82 1.82 1.82 Temperature dependence of refractive index dn/dT, 1/K: 9.E-6 9.E-6 9.E-6 Absorption Coefficients 1 and 2, W/mm: 0.3 Heat efficiency factor: 0.11 3.0 Above number: Material version, below: Second Abscoef 0.3 Emiss. Cross Sect 1.9E-18 Fluor Lifetime 9.5E-4 Pump efficiency 1. 3.3 Above number: Material version Reabs. Cross Sect. 1.2E-19 Doping Density 17250.E14 Compute Emi. Cross. from Temperature 1 Number-Upper-levels, Number-Lower-levels 3 4 Degupper DegLower Energyupper Energylower 1 1 10327. 0.0 1 1 10624. 565. 1 1 10930. 612. 0 1 0.0 785. 0 0 0.0 0.0 Material B: 7.E-3 7.E-3 7.E-3 7.E-6 7.E-6 7.E-6 310000. 310000. 310000. 0.25 0.25 0.25 1.823 1.823 1.823 9.86E-6 9.86E-6 9.86E-6 Crystal and pump beam parameters 0.12 14. 14. 90. 90. 500. 0.0 500. 4.6 4.6 0.0 0.0 0.5 0.5 0.0 0.0 0.05 0.05 0.0 0.0 30. 30. 2. 2. 0.0 0.0 0.0 0.0 0.0 0.3 0.3 50. 0.0 1. 1 0.01 0.95 1 0 0.0 0.0 0.0 293. 293. 293. 0.0 0.0 0.0 0.0 0.0 100000.E5 100000.E5 100000.E5 100000.E5 -100000.E5 -100000.E5 0.0 100000.E5 100000.E5 100000.E5 0.2 0.0 0.0 0.0 293. 0.082 0.01153848 14 25 1.E-7 1.E-7 Option and Check Boxes 2 0 0 0.0 0.0 0 1 0 0 0 0 0 0 1 0 0 1 0 55. 1 0.0 Side pump parameters 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 0.0 0.0 9.4E-4 0.0 0.0 0.0 0.12 0.0 0.12 1.E-5 0.0 0.0 0.0 0.0 0.0 0.0 Standing Wave Resonator Wave Length: 1.031E-3 Number of Face Elements: (Mirrors + Lenses + Dielectric Interfaces + Gaussian Apertures): 3 Number of External Elements: 1 Thermal Lens Present: YES c:\tutorial_3_rev\FEA Distances between Elements 1 0.12 2 610. Type of Element: (L: Lens, M: Mirror, I: Dielectric Interface, G: Gaussian Aperture) 0 M 1 I 2 M Angle of Incidence on Element Face(Degrees) 0 0.0 1 0.0 2 0.0 Type Parameter: x-plane (Radius of curvature if M or I, focal length if L, parabolic coefficient of gaussian transmission if G) 0 -37130E3 1 26449E3 2 100000. Refractive Index of Medium between Elements: x-plane 1 1.0 2 1.0 Second Derivative of Index of Refraction: x-plane 1 0.0 2 0.0 Second Derivative of Gain Profile: x-plane 1 0.0 2 0.0 Type Parameter: y-plane 0 -16202E3 1 13635E3 2 100000. Refractive Index of Medium between Elements: y-plane 1 1.0 2 1.0 Second Derivative of Index of Refraction: y-plane 1 0.0 2 0.0 Second Derivative of Gain Profile: y-plane 1 0.0 2 0.0 Aperture Radii, x-plane and y-plane 0 4.3 4.3 1 4.3 4.3 2 1000. 1000. E x t e r n a l E l e m e n t s Distances between external Elements 1 1.0 Type of External Element (L: Lens, M: Mirror, I: Dielectric Interface, G: Gaussian Aperture) 1 L Angle of Incidence on Element Face(Degrees) 1 0.0 Type Parameter: x-plane 1 5001. Refractive Index of Medium between Elements: x-plane 1 1.0 Second Derivative of Refractive Profile: x-plane 1 0.0 Second Derivative of Gain Profile: x-plane 1 0.0 Type Parameter: y-plane 1 5001. Refractive Index of Medium between Elements: y-plane 1 1.0 Second Derivative of Refractive Profile: y-plane 1 0.0 Second Derivative of Gain Profile: y-plane 1 0.0 Beam Quality Parameters M²x, M²y 1. 1. FEM results Insertion field number nanbg = 1 Number of subdivisions nansy = 12 length of crystal 0.12 pump power pupow = 500. Width of subdivisions 0.0023076 0.0115385 0.0115385 0.0115385 0.0115385 0.0115385 0.0115385 0.0115385 0.0115385 0.0115385 0.0115385 0.0023076 second derivative of refractive index x - dir. 1.8806E-9 1.26455E-8 2.96766E-8 4.51712E-8 5.89805E-8 7.10709E-8 8.13551E-8 8.97096E-8 9.61397E-8 1.0061E-7 1.0303E-7 1.03759E-7 second derivative of refractive index y - dir. 1.8806E-9 1.25817E-8 2.94825E-8 4.48484E-8 5.85415E-8 7.05147E-8 8.06872E-8 8.8938E-8 9.52649E-8 9.96571E-8 1.02009E-7 1.02704E-7 second derivative of gain x - dir. 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 second derivative of gain y - dir. 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 radii of curvature of crystal faces 371302.E2 162017.E2 264489.E2 136345.E2 FEM Mesh Data 13 30860 297401 #TRUE# 3.4 3.4 Adg123L7 -100000.E5 -100000.E5 0.0 100000.E5 100000.E5 100000.E5 0.0 0.0 0.0 0 0 0 0 0 0 0