Hybrid Trefftz Finite-Element Method for Analyzing the Eigenmodes of Optical Fibers

• Published in: Journal of lightwave technology Vol. 37; no. 3; pp. 1029 - 1036
• Main Authors: Sato, Shingo, Hasegawa, Koji, Mizukami, Naoya, Tsushima, Yasuo
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.02.2019; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Boundary conditions; Eigenvalues; Fiber nonlinear optics; Finite element analysis; Finite element method; Hybrid Trefftz finite-element method; nonlinear eigenvalue problem; Nonlinear programming; Numerical methods; optical fiber; Optical fibers; Sakurai–Sugiura method; Waveguides

We present a hybrid Trefftz finite-element method (HTFEM) for analyzing the eigenmodes of optical fibers. Using this method, waveguide problems that include open regions can be analyzed without requiring absorbing boundary conditions or utilizing artificial absorbers to enclose the region under anal...