Yagcavty shows the final design of the YAG laser cavity described elsewhere, and can be used to check your results. 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.
*GAUSSIANBEAM - 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 |
