Title :
Numerical and experimental studies of the structural effect in symmetric PFA Y-junctions
Author :
Chan, H.P. ; Chung, P.S. ; Pun, E.Y.B.
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong
Abstract :
The authors present a numerical analysis of the structural effect of single-mode symmetric Y-junctions using a phase front accelerator (PFA) and other low-loss wide-angle designs. The beam propagation method (BPM) was used for the numerical simulation. The authors show how the structural effect can reduce the transmission loss significantly with various PFA parameters. The transmission loss is then compared with those in similar designs investigated by Weissman et al. (1989) and Rangaraj et al. (1989). The authors analyze and compare the reduction of transmission loss in Y-junctions using the structural effect, truncated normal and truncated structural design. For half-branching angles larger than 1°, the proposed truncated structural design will offer lower transmission loss
Keywords :
optical couplers; optical losses; beam propagation method; half-branching angles; integrated optical waveguide; numerical analysis; numerical simulation; phase front accelerator; single-mode symmetric Y-junctions; structural effect; transmission loss; truncated normal design; truncated structural design; Design engineering; Electron accelerators; Integrated optics; Numerical analysis; Optical losses; Optical propagation; Optical signal processing; Optical waveguide components; Optical waveguides; Propagation losses;
Conference_Titel :
Computer and Communication Systems, 1990. IEEE TENCON'90., 1990 IEEE Region 10 Conference on
Print_ISBN :
0-87942-556-3
DOI :
10.1109/TENCON.1990.152583
