370 citations · 757 across the 6 of their papers we have counts for
6 papers
Fiber-optical switch controlled by a single atom
Danny O'Shea, Christian Junge, Jürgen Volz +1
We demonstrate highly efficient switching of optical signals between two optical fibers controlled by a single atom. The key element of our experiment is a whispering-gallery mode…
Ultra-high Q whispering-gallery-mode bottle microresonators: properties and applications
D. O'Shea, C. Junge, S. Nickel +2
Highly prolate-shaped whispering-gallery-mode "bottle microresonators" have recently attracted considerable attention due to their advantageous properties. We experimentally show t…
Ultra-high-Q tunable whispering-gallery-mode microresonator
M. Pöllinger, D. O'Shea, F. Warken +1
Typical microresonators exhibit a large frequency spacing between resonances and a limited tunability. This impedes their use in a large class of applications which require a reson…
Optical bistability in Er-Yb co-doped phosphate glass microspheres at room temperature
J. M. Ward, D. G. O'Shea, B. J. Shortt +1
We experimentally demonstrate optical bistability in Er3+-Yb3+ phosphate glass microspheres at 295 K. Bistability is associated with both Er3+ fluorescence and lasing behavior, and…
Upconversion channels in Er3+:ZBLALiP: multicolour microspherical light source
Danny G. O'Shea, Jonathan M. Ward, Brian J. Shortt +3
We present results on the realization of an all-taper coupled, multicolour microspherical glass light source fabricated from the erbium doped fluoride glass ZBLALiP. Whispering gal…
A heat-and-pull rig for fiber taper fabrication
J. Ward, D. O'Shea, B. Shortt +3
We describe a reproducible method of fabricating adiabatic tapers with 3-4 micron diameter. The method is based on a heat-and-pull rig, whereby a CO2 laser is continuously scanned…