Kerr nonlinear switching in a hybrid silicasilicon microspherical resonator


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.

Publication DOI:
Divisions: Engineering & Applied Sciences > Aston Institute of Photonics Technology
Additional Information: Funding: EPSRC (EP/J004863/1), NORFAB (70201900/NL0133) and the Norwegian Discovery Fund (2011112). The data for this work is accessible through the University of Southampton Institutional Research Repository (DOI:10.5258/SOTON/377985).
Uncontrolled Keywords: Atomic and Molecular Physics, and Optics
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
https://www.osa ... =oe-23-13-17263 (Publisher URL)
PURE Output Type: Article
Published Date: 2015-06-24
Authors: Suhailin, F.H.
Healy, N.
Franz, Y.
Sumetsky, M. ( 0000-0001-7289-3547)
Ballato, J.
Dibbs, A.N.
Gibson, U.J.
Peacock, A.C.


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