Optical resonator optimization of CAEP THz-FEL

The optical resonator of CAEP THz-FEL is optimized to ensure wavelength tunable in a wide range and high power operation. The FEL power strongly depends on the performance of the optical resonator including output efficiency, gain and round-trip loss. The optical resonator consists of metal-coated r...

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Published in2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) pp. 1 - 2
Main Authors Yuhuan Dou, Xiaojian Shu, Xingfan Yang, Ming Li, Yong Xu, Zhou Xu
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.2015
Subjects
Mirrors
Optical diffraction
Optical resonators
Optical waveguides
Power generation
Resonant frequency
Waveguide discontinuities
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Summary:The optical resonator of CAEP THz-FEL is optimized to ensure wavelength tunable in a wide range and high power operation. The FEL power strongly depends on the performance of the optical resonator including output efficiency, gain and round-trip loss. The optical resonator consists of metal-coated reflect mirror, the center-hole output mirror, waveguide. The influence of waveguide and Rayleigh length on the quality of optical cavity is evaluated by the 3D-OSIFEL code. The waveguide size, mirror curvature radius, output hole radius is optimized to different frequencies between 1 THz to 3 THz.
ISSN:2162-2027
DOI:10.1109/IRMMW-THz.2015.7327642