Recovery of graded index profile in planar waveguide by cubic spline function

Weijun Liao; Xianfeng Chen; Yuping Chen; Yuxing Xia; Yingli Chen

doi:10.1117/12.573527

17 January 2005 Recovery of graded index profile in planar waveguide by cubic spline function

Weijun Liao, Xianfeng Chen, Yuping Chen, Yuxing Xia, Yingli Chen

Proceedings Volume 5644, Optoelectronic Devices and Integration; (2005) https://doi.org/10.1117/12.573527
Event: Photonics Asia, 2004, Beijing, China

Abstract

We present in this paper a method to recover the refractive index profile of graded index waveguide from the effective indices by cubic spline interpolation function. It is proved by numerical analysis of several typical index distributions that the refractive index profile can be reconstructed closely to its exact profile with the presented interpolation model. This method can reliably retrieve index profile of both more-mode (more than 4 guiding mode) and fewer-mode (2-4) waveguides.

Citation Download Citation

Weijun Liao, Xianfeng Chen, Yuping Chen, Yuxing Xia, and Yingli Chen "Recovery of graded index profile in planar waveguide by cubic spline function", Proc. SPIE 5644, Optoelectronic Devices and Integration, (17 January 2005); https://doi.org/10.1117/12.573527

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