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- Choi, EunMi
- THz Vacuum Electronics and Applied Electromagnetics Lab.
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Phase Retrieval of High-Power Gyrotron Orbital Angular Momentum Beams
- Author(s)
- Sawant, Ashwini, Yu, Dongho, Kim, Dongsung, Choe, Munseok, Choi, EunMi
- Issued Date
- 2017-04-24
- Citation
- 18th International Vacuum Electronics Conference, IVEC 2017, pp.1 - 2
- Abstract
- We present an effective phase retrieval technique for determining the vortex charge of a high-power orbital angular momentum (OAM) beam based on phase coefficients optimization. The high-power OAM beam is generated by transmitting a 25 kW, 95 GHz Gaussian like gyrotron beam through a spiral phase plate (SPP). Determination of the vortex charge of the OAM beam is carried out using a modified phase retrieval algorithm. Retrieved intensity profile show 99.27% intensity regeneration at measurement planes for the high-power OAM beam.
- Publisher
- 18th International Vacuum Electronics Conference, IVEC 2017
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