Whispering-gallery mode splitting in coupled microresonators

Smith, David D.; Chang, Hongrok; Fuller, Kirk A.

doi:10.1364/josab.20.001967

Cited by 90 publications

(28 citation statements)

References 15 publications

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“…Interference between co-resonant WGMs in the two ring resonators often results in mode splitting (Smith et al 2003). The power transmitted through the taper can be described by:…”

Section: Methodsmentioning

confidence: 99%

Highly sensitive tuning of coupled optical ring resonators by microfluidics

Shopova

Sun

Rosenberger

et al. 2008

Microfluid Nanofluid

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The authors develop optofluidic coupled ring resonator (OCRR) system in which one of the ring resonators serves as a microfluidic channel. Highly sensitive tuning of the OCRR is demonstrated by making small changes in the refractive index of the fluid. A refractometric sensing scheme using the OCRR is proposed and demonstrated, allowing for measuring a refractive index change down to 10 -9 refractive index units, two orders of magnitude better than a single ring resonator.

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“…Interference between co-resonant WGMs in the two ring resonators often results in mode splitting (Smith et al 2003). The power transmitted through the taper can be described by:…”

Section: Methodsmentioning

confidence: 99%

Highly sensitive tuning of coupled optical ring resonators by microfluidics

Shopova

Sun

Rosenberger

et al. 2008

Microfluid Nanofluid

View full text Add to dashboard Cite

show abstract

“…Because the critical coupling gap-size is different for each individual mode, the Q-factors of some modes are reduced. When interacting resonances overlap spectrally, splitting of the cavity eigenstates occurs [21]. In the violet highlighted spectral region, a mode in both isolated resonators is visible.…”

Section: Realization Of Coupled-resonator Systemsmentioning

confidence: 98%

Flexible coupling of high-Q goblet resonators for formation of tunable photonic molecules

Beck¹,

Schloer²,

Großmann³

et al. 2012

Opt. Express

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Abstract:We report on a method for a highly flexible arrangement of polymeric high-Q whispering gallery mode resonators. Parallel on-chip fabricated goblet resonators are detached from the substrate by bonding a gold wire to the field-free center of their polymeric cavity. This enables the precise control of the resonator's spatial position. The modal spectrum of the detached resonator reveals preservation of its high optical quality. Manipulation of the resonators' position allows for designing coupled resonators geometries and tuning the coupling properties dynamically after batch fabrication. The properties of the modal spectrum evidence the successful optical coupling.

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“…This mode splitting may be caused by the break of the mode degeneracy [25,26]. As the micromanipulation technique does not guarantee a precise control of the position of the microcavity on the waveguide, a slight off axis displacement of the sphere (in the lateral direction) would modify the coupled resonances as observed in Fig.…”

Section: Transmission Measurementsmentioning

confidence: 99%

All silicon waveguide spherical microcavity coupler device

Xifré-Pérez¹,

Doménech²,

Fenollosa³

et al. 2011

Opt. Express

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Abstract:A coupler based on silicon spherical microcavities coupled to silicon waveguides for telecom wavelengths is presented. The light scattered by the microcavity is detected and analyzed as a function of the wavelength. The transmittance signal through the waveguide is strongly attenuated (up to 25 dB) at wavelengths corresponding to the Mie resonances of the microcavity. The coupling between the microcavity and the waveguide is experimentally demonstrated and theoretically modeled with the help of FDTD calculations.

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Whispering-gallery mode splitting in coupled microresonators

Cited by 90 publications

References 15 publications

Highly sensitive tuning of coupled optical ring resonators by microfluidics

Highly sensitive tuning of coupled optical ring resonators by microfluidics

Flexible coupling of high-Q goblet resonators for formation of tunable photonic molecules

All silicon waveguide spherical microcavity coupler device

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