Ultra small core fiber with dispersion tailoring

摘要

Various embodiments of optical fiber designs and fabrication processes for ultra small core fibers (USCF) are disclosed. In some embodiments, the USCF includes a core that is at least partially surrounded by a region comprising first features. The USCF further includes a second region at least partially surrounding the first region. The second region includes second features. In an embodiment, the first features are smaller than the second features, and the second features have a filling fraction greater than about 90 percent. The first features and/or the second features may include air holes. Embodiments of the USCF may provide dispersion tailoring. Embodiments of the USCF may be used with nonlinear optical devices configured to provide, for example, a frequency comb or a supercontinuum.

主权项

1. An optical fiber capable of propagating light having a wavelength, the optical fiber comprising:
a core having a diameter less than about 4 μm; a first region at least partially surrounding the core, the first region comprising a plurality of first features collectively having a first filling factor in the first region that is less than about 90 percent; and a second region at least partially surrounding the first region, the second region comprising a plurality of second features collectively having a second filling factor in the second region that is greater than about 90 percent, wherein the optical fiber is configured to control dispersion of the light and substantially confine the light to the core.