Title :
Novel coherently coupled multisectional bending optical waveguide
Author :
Su, Jenn-Jia ; Wang, Way-Seen
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
Based on the coherent-coupling effect, a novel wide-angle low-loss multisectional bending waveguide is proposed. The bending waveguide consists of a series of corner bends connected by straight waveguides of uniform length. The angles of the corner bends are the same except that those of the first and the last bends are only halves of them. For the same total bend angle and transmission efficiency, simulated and experimental results show that the area required for the proposed bend is smaller than those for the conventional multisectional bend and the circular bend.
Keywords :
bending; optical waveguides; waveguide discontinuities; coherent-coupling effect; coherently coupled multisectional bending optical waveguide; corner bends; phase front rocking elimination; total bend angle; transmission efficiency; wide-angle low-loss multisectional bending waveguide; Directional couplers; Joining processes; Mach-Zehnder interferometers; Optical coupling; Optical devices; Optical interferometry; Optical propagation; Optical waveguides; Propagation constant; Waveguide transitions;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2002.1021986