Angular spectrum theory to calculate coupling efficiency in rectangular waveguide resonators |
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| Authors: | Xinbing Wang Qiyang Xu Erwu Liu |
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| Affiliation: | State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, People's Republic of China |
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| Abstract: | Coupling efficiency of the rectangular waveguide resonators are discussed in terms of the method of angular spectrum theory. Under the condition given in the paper, the coupling coefficients for the EH11 mode in the rectangular waveguide resonator are presented as a function of mirror curvature and position. It is shown that there exist two special geometries to provide low coupling efficiency. The method can be applied to the other modes. |
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| Keywords: | Rectangular waveguide Resonator Coupling efficiency Angular spectrum |
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