TE and TM coupling coefficients for index-gain multigrating waveguides
作者:
P.Debernardi,
I.Montrosset,
期刊:
IEE Proceedings J (Optoelectronics)
(IET Available online 1992)
卷期:
Volume 139,
issue 2
页码: 127-132
年代: 1992
DOI:10.1049/ip-j.1992.0022
出版商: IEE
数据来源: IET
摘要:
The coupling coefficients of dielectric optical waveguides with more than one grating and with a periodic perturbation of the loss and gain are calculated for TE and TM modes. Analytical expressions for the coupling coefficient are given for the case of an asymmetric trapezoidal-like grating profile. Results obtained using various approximations of the unperturbed waveguide are presented and compared.
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