A low-loss photonic silica nanofiber for higher-order modes.
Optical nanofibers confine light to subwavelength scales, and are of interest for the design, integration, and interconnection of nanophotonic devices. Here we demonstrate high transmission (> 97%) of the first family of excited modes through a 350 nm radius fiber, by appropriate choice of the fiber and precise control of the taper geometry. We can design the nanofibers so that these modes propagate with most of their energy outside the waist region. We also present an optical setup for selectively launching these modes with less than 1% fundamental mode contamination. Our experimental results are in good agreement with simulations of the propagation. Multimode optical nanofibers expand the photonic toolbox, and may aid in the realization of a fully integrated nanoscale device for communication science, laser science or other sensing applications.
Joint Quantum Institute, Department of Physics, University of Maryland and National Institute of Standards and Technology, College Park, Maryland 20742, USA.
S
S
Ravets
J E
JE
Hoffman
L A
LA
Orozco
S L
SL
Rolston
G
G
Beadie
F K
FK
Fatemi
D003198:Computer Simulation; D017076:Computer-Aided Design; D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D008027:Light; D008962:Models, Theoretical; D057139:Nanofibers / Q000737:chemistry* / Q000528:radiation effects* / Q000648:ultrastructure; D036103:Nanotechnology / Q000295:instrumentation*; D012542:Scattering, Radiation; D012822:Silicon Dioxide / Q000737:chemistry* / Q000528:radiation effects*
D012822:Silicon Dioxide