5 July 1989 Off-Axis Folded Laser Beam Trajectories In A Strip-Line CO2 Laser
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Proceedings Volume 1038, 6th Mtg in Israel on Optical Engineering; (1989) https://doi.org/10.1117/12.951092
Event: Sixth Meeting of Optical Engineering in Israel, 1988, Tel Aviv, Israel
For a hemi-confocal cavity of high Fresnel number, the conventional Hermite-Gaussian axial mode theory no longer adequately predicts the output intensity pattern. Under these conditions, off-axis beam trajectories can have higher round trip gains, and may therefore be dominant. Specific trajectories can be selected by introducing suitable blocks into the cavity. Output patterns corresponding to M shaped modes were observed experimentally in a cavity with a stop placed at the center of the full reflecting spherical mirror. A Fox and Li resonator analysis algorithm was applied to the above cavity configuration and a similar output distribution was obtained. Therefore, the general spatial properties of the M mode are determined by diffraction.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Baruch Sterman, Baruch Sterman, Amnon Gabay, Amnon Gabay, Shaul Yatsiv, Shaul Yatsiv, Eldad Dagan, Eldad Dagan, "Off-Axis Folded Laser Beam Trajectories In A Strip-Line CO2 Laser", Proc. SPIE 1038, 6th Mtg in Israel on Optical Engineering, (5 July 1989); doi: 10.1117/12.951092; https://doi.org/10.1117/12.951092


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