Fabrication of long-period optical fiber gratings by use of ion implantation.
We report the fabrication of long-period optical fiber gratings by use of a refractive-index increase induced by ion implantation. Helium ions were implanted in an optical fiber core through a metal mask that had a 170-microm -pitch grating with spacing of 60 microm . We obtained a wavelength-dependent effective transmission loss by use of the grating.
Fujimaki
M
M
Ohki
Y
Y
Brebner
J L
JL
Roorda
S
S