Fabrication and supercontinuum generation in a tellurite hybrid microstructured optical fiber with near-zero and flattened chromatic dispersion control

Supercontinuum (SC) generation in tellurite hybrid microstructured optical fibers (HMOFs) whose refractive index difference between core and cladding materials was as large as 0.49 was demonstrated for the first time. The fiber was successfully fabricated and its chromatic dispersion was tailored to be near-zero and flattened with three zero-dispersion wavelengths at 1270, 1973 and 3627 nm. A broad SC generation was experimentally demonstrated with 5-dB spectral flatness over a 1060-nm spectral bandwidth by using a 20-cm-long section of the fabricated tellurite HMOF.