Title :
Vectorial analysis of fiber-core effects in weakly fused couplers
Author :
Wu, Tzong-Lin ; Chang, Hung-Chun
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
Based on a full-wave vectorial analysis, the effects of fiber cores on the coupling characteristics of weakly fused couplers are investigated. We find that prior results based on the rectangular waveguide approximation and the effective index method overestimated the coupling strength and the effects of the cores.
Keywords :
approximation theory; finite element analysis; optical fibre couplers; optical fibre polarisation; optical fibre theory; rectangular waveguides; refractive index; vectors; coupling characteristics; coupling strength; effective index method; fiber cores; fiber-core effects; full-wave vectorial analysis; rectangular waveguide approximation; weakly fused couplers; Electromagnetic waveguides; Frequency; Optical fiber couplers; Optical fiber polarization; Optical fiber theory; Optical refraction; Optical variables control; Optical waveguide theory; Optical waveguides; Rectangular waveguides;
Journal_Title :
Photonics Technology Letters, IEEE
