Simulation of longitudinally magnetized three-dimensional magneto-optical devices by a full-vectorial beam propagation method

✍ Scribed by K. Xie; A.D. Boardman; M. Xie; Y.J. Yang; H.M. Jiang; H.J. Yang; G.J. Wen; J. Li; K. Chen; F.S. Chen

• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 277 KB
• Volume: 281
• Category: Article
• ISSN: 0030-4018
• DOI: 10.1016/j.optcom.2008.02.039

✦ Synopsis

A full three-dimensional vector finite-difference beam propagation method is developed and tested. In this scheme, a delicate way to discretize the coupled equations is incorporated. The resulting matrix for the difference equation then has a tri-diagonal structure, which makes the program robust and, computationally, efficient. The transparent boundary condition is also improved so that any exponential growth at a boundary is suppressed. The method is applied to the simulation of magneto-optical devices and the design of a waveguidebased optical switch, with À25 dB isolation, is presented.