We experimentally and theoretically studied the photon lifetime spectral distribution in two coherently coupled spherical microcavities of 3-16 µm diameter forming a photonic molecule, which shows a multipeak narrowband modal structure resulting from lifting of the mode degeneracy with respect to the azimuthal quantum number. The results demonstrate the feasibility of photonic molecules as a basis for a multichannel, wavelength-tunable optical delay-line device, which can be used for delay times in the range 10 ps to 1 ns.
© 2005 Optical Society of America
(060.4230) Fiber optics and optical communications : Multiplexing
(230.3120) Optical devices : Integrated optics devices
(230.5750) Optical devices : Resonators
(350.3950) Other areas of optics : Micro-optics
Yury P. Rakovich, John J. Boland, and John F. Donegan, "Tunable photon lifetime in photonic molecules: a concept for delaying an optical signal," Opt. Lett. 30, 2775-2777 (2005)