Increased WKB method

Zhuangqi Cao; Li Zham; Yingli Chen

doi:10.1117/12.253189

30 September 1996 Increased WKB method

Zhuangqi Cao, Li Zham, Yingli Chen

Proceedings Volume 2891, Integrated Optoelectronics; (1996) https://doi.org/10.1117/12.253189
Event: Photonics China '96, 1996, Beijing, China

Abstract

We present a new approximation for obtaining the analytical dispersion relations of planar waveguides with arbitrary index profile of practical interest. In our method, two substantial improvements over the conventional WKB method are presented. The numerical comparisons show a good accuracy of the results even for a single-mode waveguide or close to the turning point.

Citation Download Citation

Zhuangqi Cao, Li Zham, and Yingli Chen "Increased WKB method", Proc. SPIE 2891, Integrated Optoelectronics, (30 September 1996); https://doi.org/10.1117/12.253189

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