In this paper, we test the performance of a quasi-optical, internal-gyrotron mode converter. When cold testing mode converters, a rotating higher-order mode is commonly used. However, this requires a nontrivial design and precise alignment. We thus propose a new technique for testing gyrotron mode converters by using a simple, non-rotating, higher-order mode generator. We demonstrate the feasibility of this technique for a W-band gyrotron quasi-optical mode converter by examining the excitation of a TE6,2 mode from a non-rotating mode generator. Our results demonstrate that this new cold-test scheme is an easy and efficient method for verifying the performance of quasi-optical mode converters.
CITATION STYLE
Kim, S. G., Kim, D. S., Choe, M. S., Lee, W., So, J., & Choi, E. M. (2014). Cold testing of quasi-optical mode converters using a generator for non-rotating high-order gyrotron modes. Review of Scientific Instruments, 85(10). https://doi.org/10.1063/1.4898180
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