Second-order filtering and sensing with partially coupled traveling waves in a single resonator

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Detail(s)

Original languageEnglish
Pages (from-to)1570-1572
Journal / PublicationOptics Letters
Volume23
Issue number20
Publication statusPublished - 15 Oct 1998
Externally publishedYes

Abstract

The counterpropagating waves in a single traveling-wave cavity can be partially coupled by means of a small perturbation such as a notch. When it is side coupled to a waveguide, this single cavity yields a general second-order (Chebyshev) reflection response in the waveguide, which is useful for narrow-bandwidth reflecting applications. In a different application, the cavity amplifies small reflections induced by external perturbations, thus finding use in ultrafine sensing. Amplification factors as great as 1012 are predicted for the highest-Q microsphere resonators. The analytic theory of these devices is presented. © 1998 Optical Society of America.

Citation Format(s)

Second-order filtering and sensing with partially coupled traveling waves in a single resonator. / Little, Brent E.; Chu, Sai T.; Haus, Hermann A.
In: Optics Letters, Vol. 23, No. 20, 15.10.1998, p. 1570-1572.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review