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Prism‐waveguide coupling efficiency for waveguides with an arbitrary refractive‐index profile

 

作者: Dror Sarid,   Dorian Kermisch,  

 

期刊: Applied Physics Letters  （AIP Available online 1978）
卷期: Volume 33, issue 7  

页码: 619-620

 

ISSN:0003-6951

 

年代: 1978

 

DOI:10.1063/1.90482

 

出版商: AIP

 

数据来源: AIP

 

摘要:

Using the WKB approximation, we generalize Ulrich’s solution to the optimum coupling efficiency of a prism‐waveguide coupler, so that it can be applied to a waveguide with an arbitrary refractive‐index profile. As an example, we give an analytic solution to a waveguide having an exponential refractive‐index profile.

 

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