Supercontinuum generation in photonic-molecule modes ofmicrostructure fibers

摘要

Supercontinuum generation in microstructure fibers with a core innthe form of a cyclic polyatomic photonic molecule is studied. Air holesnarranged in a two-dimensional holey structure in the cladding of thisnfiber and a larger hole at the center of the fiber form ancyclic-molecule-like structure, consisting of an array of small-diameternglass channels linked by narrow bridges, around the central hole. Thisnphotonic-molecule microstructure-integrated bundle of fibers can guidenthe light through total internal reflection, providing a very high lightnconfinement degree due to the large refractive index step. Thenproperties of supercontinuum emission produced in such fibers can bencontrolled by coupling the energy of femtosecond light pulses intondifferent photonic-molecule modes of the fiber