Yagcavty.len - A YAG laser cavity

Yagcavty.len - A YAG laser cavity

This is the final design of the YAG laser cavity. The design shown here was actually produced using an optimization procedure, in which an SCP error function was used to compute Gaussian beam operands using the tgb (trace_gaussian_beam) command, and the conic constant of the object surface was used to create a temporary spot-size variable. The procedure is described in detail in the Optics Reference manual.

Since the beam waist size is not part of the lens data, its value (0.015956) is saved as a note on surface 1. With this spot size, the beam data in the cavity is as follows.

*GAUSSIAN BEAM - YZ PLANE
WAVELENGTH =   1.064000      M-SQUARED =   1.000000
SRF   SPOT SIZE  DIVERGENCE  WAIST SIZE  WAIST DIST  INC RADIUS  RFR RADIUS
  0     0.015956    0.021223    0.015956      --          --          --

  1     0.108798    0.011662    0.015956   -9.227868   -5.181708   -9.430708
  2     0.166700    0.021223    0.015956   -7.817510  -14.359425   -7.889794

  3     0.177267    0.014641    0.015956  -12.057320   -8.385449  -12.155806
  4     0.216670    0.001563    0.216668    0.500074  -14.837787  3.8421e+04

  5     0.216668    0.001563    0.216668  7.4375e-05  2.5833e+08  2.5833e+08

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