Kerry J. Vahala and colleagues demonstrate wide band fiber coupler to a whispering-gallery cavity

Tal Carmon, Steven Y. T. Wang, Eric P. Ostby, and Kerry J. Vahala (2007) Wavelength-independent coupler from fiber to an on-chip cavity, demonstrated over an 850nm span. Optics Express, 15( 12): 7677-7681, 7 June 2007. CaltechAUTHORS