A compact and robust scheme for broadband excitation of whispering gallery mode (WGM) resonances into a microsphere is demonstrated. A polymer microsphere (10 μm) is encapsulated into the capillary of a microstructured optical fiber, in direct contact with the guiding core. Such a configuration allows efficient and reproducible excitation of the in-MOF-microsphere resonator that is characterized by two launch/collection schemes: core input/scattering output, and sphere input/core output. The latter allows an excitation of the microsphere WGMs externally to the fiber. Numerically calculated WGM spectra are in agreement with experiments. factors in the range of are typically measured.
© 2013 Optical Society of AmericaFull Article | PDF Article
Y. Panitchob, G.Senthil Murugan, M. N. Zervas, P. Horak, S. Berneschi, S. Pelli, G.Nunzi Conti, and J. S. Wilkinson
Opt. Express 16(15) 11066-11076 (2008)
Ganapathy Senthil Murugan, Michalis N. Zervas, Yuwapat Panitchob, and James S. Wilkinson
Opt. Lett. 36(1) 73-75 (2011)
Pengfei Wang, Timothy Lee, Ming Ding, Anirban Dhar, Thomas Hawkins, Paul Foy, Yuliya Semenova, Qiang Wu, Jayanta Sahu, Gerald Farrell, John Ballato, and Gilberto Brambilla
Opt. Lett. 37(4) 728-730 (2012)