Long-period fiber gratings based on periodic microbends.
We demonstrate a new type of high-performance long-period fiber grating based on arc-induced periodic microbends. The fabrication method is simple and does not require special fibers. Flexibility in controlling the filter parameters makes it possible to produce arbitrary filter profiles by use of a simple apodization technique, which is difficult to do with conventional long-period gratings.
Hwang
I K
IK
Yun
S H
SH
Kim
B Y
BY