TITLE

Highly efficient prism coupling to whispering gallery modes of a square μ cavity

AUTHOR(S)
Pan, Yong-Le; Chang, Richard K.
PUB. DATE
January 2003
SOURCE
Applied Physics Letters;1/27/2003, Vol. 82 Issue 4, p487
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
By using prism coupling to a square µ cavity, over 75% energy transfer to the whispering gallery modes (Q>10[sup 6]) by frustrated total internal reflection was observed. A good comparison was found between measured data and theoretical model (based on a Fabry-Perot resonator), for the dependence of the coupling and linewidth of the whispering gallery modes (WGMs) as a function of relative separation between the prism and the µ cavity. By selecting the incident angle at the prism interface, the coupling to all four different sets of WGMs can be changed to coupling to only one set of WGMs.
ACCESSION #
8954603

 

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