Unstable resonators with nonuniform reflectivity outcouplers: geometric theory for bare cavities.
The eigenequation from the geometric theory of unstable resonators with nonuniform reflectivity outcouplers is solved by a series method. Either the reflectivity profile or the dominant mode can be specified and the other can be obtained. A spatially limited output can also be specified, but the resulting mode and reflectivity profile are not guaranteed to be spatially limited. This problem can be avoided, but a good general method for obtaining all of the desired features has not been found.
Ferguson
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