Mode properties of an external-cavity laser with Gaussian gain |
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| Authors: | Maes Carl F Wright Ewan M |
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| Affiliation: | Laser and Optics Research Center, Department of Physics, U.S. Air Force Academy, Colorado 80840, USA. carl.maes@usafa.af.mil |
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| Abstract: | We analyze the mode properties of a laser with a Gaussian gain profile by using the beam propagation method. The resonance properties of the Petermann K factor and the M2 beam quality are shown to be related in the vicinity of degenerate cavity geometries. K is unity for a confocal cavity, even under conditions with strong gain guiding, while M2 is a maximum. |
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