Abstract
This Letter proposes and demonstrates a linear-regression-based loss-extraction model that is applicable for all-pass rings and symmetrically and asymmetrically coupled add-drop rings. The model is derived by transforming the transmission spectra of a ring into linear relationships with no approximation. An all-pass ring resonator is fabricated to verify the model, and the experimental results indicate that the proposed model is more reliable than previously reported models [Opt. Express 14, 3872 (2006) [CrossRef] ; Opt. Express 15, 10553 (2007) [CrossRef] ; and J. Lightwave Technol. 16, 1308 (1998) [CrossRef] ].
© 2016 Optical Society of America
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