6533b7dbfe1ef96bd1270b96

RESEARCH PRODUCT

Design and optimization of broadband tapered optical fibers with a nanofiber waist

Ariane StiebeinerArno RauschenbeutelRuth Garcia-fernandez

subject

Mode volumeOptical fiberMulti-mode optical fiberMaterials sciencebusiness.industryPolarization-maintaining optical fiberGraded-index fiberAtomic and Molecular Physics and Opticslaw.inventionOpticslawDispersion-shifted fiberPlastic optical fiberbusinessPhotonic-crystal fiber

description

The control over the transmission properties of tapered optical fibers (TOFs) is an important requirement for a whole range of applications. Using a carefully designed flame pulling process that allows us to realize preset fiber radius profiles, we fabricate TOFs with a nanofiber waist. We study the spectral transmission properties of these TOFs as a function of the taper profile and the waist length and show how the transmission band of the TOF can be tuned via different fiber profile parameters. Based on these results, we have designed a nanofiber-waist TOF with broadband transmission for surface spectroscopy of organic molecules. Moreover, our method allows us to analyze the loss mechanisms of optical nanofibers.

https://doi.org/10.1364/oe.18.022677