Title :
Minimum Loss Condition of a Bent Rectangular Tube Waveguide
Author :
Yamauchi, Junji ; Nakano, Tomohiro ; Harada, Seiji ; Nakano, Hisamatsu
Author_Institution :
Fac. of Sci. & Eng., Hosei Univ., Tokyo, Japan
Abstract :
The leakage loss of a tube dielectric waveguide is analyzed analytically and numerically. A minimum loss condition of a bent rectangular tube waveguide is derived in terms of the ratio of refractive index of the tube to the other region using the transverse transmission-line model. The validity of the derived minimum loss condition is confirmed by the two- and three-dimensional beam-propagation methods.
Keywords :
light propagation; microwave photonics; optical losses; optical waveguides; rectangular waveguides; refractive index; 2D beam-propagation; 3D beam-propagation; bent rectangular tube waveguide; optical leakage loss; refractive index; transverse transmission-line model; Electron tubes; Hollow waveguides; Optical losses; Optical waveguides; Rectangular waveguides; Refractive index; Slabs; Beam-propagation method; bend loss; leakage loss;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2011.2157674
