Transmission Properties Of Circular Dielectric-Coated Metallic Waveguides For Infrared Transmission

Mitsunobu Miyagi; Kazuhide Harada; Yoshizo Aizawa; Shojiro Kawakami

doi:10.1117/12.943152

16 October 1984 Transmission Properties Of Circular Dielectric-Coated Metallic Waveguides For Infrared Transmission

Mitsunobu Miyagi, Kazuhide Harada, Yoshizo Aizawa, Shojiro Kawakami

Proceedings Volume 0484, Infrared Optical Materials and Fibers III; (1984) https://doi.org/10.1117/12.943152
Event: 1984 Technical Symposium East, 1984, Arlington, United States

Abstract

Several kinds of dielectric-coated metallic waveguides such as germanium-coated nickel or silicon-coated aluminum hollow waveguides are fabricated by using a method based on rf sputtering, plating, and etching techniques. Transmission losses of 0.34 dB/m are achieved for straight waveguides at 10.6 μm. Measurements of bending losses of several kinds of hollow waveguides are conducted, which reveal that dielectric-coated metallic waveguides have smaller bending losses than conventional metallic waveguides. Edge-guided modes or whispering gallery modes in circular metallic waveguides are also observed. A design theory for reducing bending losses of circular dielectric-coated waveguides has been presented by using a new theory' different from that used previously.² Theoretical and experimental results have been compared.

Citation Download Citation

Mitsunobu Miyagi, Kazuhide Harada, Yoshizo Aizawa, and Shojiro Kawakami "Transmission Properties Of Circular Dielectric-Coated Metallic Waveguides For Infrared Transmission", Proc. SPIE 0484, Infrared Optical Materials and Fibers III, (16 October 1984); https://doi.org/10.1117/12.943152

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