NDLI: Numerical modeling of weakly fused fiber-optic polarization beamsplitters. Part II: the three-dimensional electromagnetic model

Content Provider	IEEE Xplore Digital Library
Author	Szu-Wen Yang Tzong-Lin Wu Cheng Wen Wu Hung-Chun Chang
Copyright Year	1983
Abstract	For part I see ibid., p. 685, 1998. We establish a three-dimensional (3-D) electromagnetic model for simulating the power transfer characteristics of fused tapered fiber-optic couplers by combining a vectorial modal calculation for the optical waveguide with dumbbell-shaped cross section, as reported in Part I of this paper, and the step-like approximation method for the tapered structure. The model is used to study weakly fused couplers functioning as polarization beamsplitters. The simulation results are compared to the measured ones and it is shown that good agreement has been achieved not only for the coupling power variation during the drawing process, but also for the spectral response of the coupler. We also study the dependence of the coupling behavior of the extremely weakly fused couplers on different coupler structure parameters. The dependence on the aspect ratio of the cross-sectional shape and the heated length is found to be sensitive. The model is a useful tool in helping design couplers for proper operating conditions.
Sponsorship	IEEE Lasers and Electro-Optics Society Optical Society of America
Starting Page	691
Ending Page	696
Page Count	6
File Size	152531
File Format	PDF
ISSN	07338724
Volume Number	16
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Numerical models Optical fiber polarization Optical fiber couplers Electromagnetic waveguides Electromagnetic wave polarization Electromagnetic modeling Optical sensors Optical waveguides Optical waveguide components Approximation methods
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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