Analysis on divergence half-angle of Gaussian approximation for the far-field of planar waveguide

Lianhuang Li; Fuyuan Guo

doi:10.1117/12.868627

2 December 2010 Analysis on divergence half-angle of Gaussian approximation for the far-field of planar waveguide

Lianhuang Li, Fuyuan Guo

Author Affiliations +

Proceedings Volume 7851, Information Optics and Optical Data Storage; 78510T (2010) https://doi.org/10.1117/12.868627
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

The diffraction far-field of planar waveguide is investigated and then rationality of the Gaussian approximation for it is clarified based on the characteristic of its beam propagation factor. A new definition for divergence half-angle is presented according to the maximal matching efficiency method, furthermore, relationship between the maximal matching efficiency divergence half-angle and normalized frequency is given.

Citation Download Citation

Lianhuang Li and Fuyuan Guo "Analysis on divergence half-angle of Gaussian approximation for the far-field of planar waveguide", Proc. SPIE 7851, Information Optics and Optical Data Storage, 78510T (2 December 2010); https://doi.org/10.1117/12.868627

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