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Healy, N.
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Publications (16/16 displayed)
- 2015Kerr nonlinear switching in a hybrid silicasilicon microspherical resonatorcitations
- 2015Templated growth of II-VI semiconductor optical fiber devices and steps towards infrared fiber lasers
- 2015Fiber-based semiconductor resonators for nonlinear photonics
- 2014Long-wavelength silicon photonic integrated circuits
- 2014Long-wavelength silicon photonic integrated circuits
- 2014Locally erasable couplers for optical device testing in silicon on insulatorcitations
- 2014Annealing of amorphous silicon using c.w. visible lasers
- 2014Tunable anisotropic strain in laser crystallized silicon core optical fibers
- 2013Laser crystallisation of semiconductor core optical fibres
- 2013Laser crystallisation of semiconductor core optical fibres
- 2012Laser annealing of amorphous silicon core optical fiberscitations
- 2012Mid Infrared Transmistion Properties of ZnSe Microstructured Optical Fiberscitations
- 2011High index contrast semiconductor ARROW and hybrid ARROW fiberscitations
- 2011Selective semiconductor filling of microstructured optical fiberscitations
- 2011ARROW guiding silicon photonic crystal fibres
- 2010Integration of semiconductors molecules and metals into microstructured optical fibers
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article
Kerr nonlinear switching in a hybrid silicasilicon microspherical resonator
Abstract
<p>A hybrid silicon-core, silica-clad microspherical resonator has been fabricated from the semiconductor core fiber platform. Linear and nonlinear characterization of the resonator properties have shown it to exhibit advantageous properties associated with both materials, with the low loss cladding supporting high quality (Q) factor whispering gallery modes which can be tuned through the nonlinear response of the crystalline core. By exploiting the large wavelength shift associated with the Kerr nonlinearity, we have demonstrated all-optical modulation of a weak probe on the timescale of the femtosecond pump pulse. This novel geometry offers a route to ultra-low loss, high-Q silica-based resonators with enhanced functionality.</p>