Tunable dispersion slope compensator using two uniform fiber Bragg gratings mounted on S-shape plate.
We propose and experimentally demonstrate a novel method for tunable dispersion slope compensation. We use two uniform fiber Bragg gratings (FBGs), a spatially designed S-bending stage and 4-port circulator. Two FBGs are mounted on each surface of a metal plate along the calculated quadratic curve. The dispersion slope (DS) can be tuned by adjusting a nonlinear strain along two uniform FBGs without changing second order dispersion as well as the central wavelength. In the experiment, a DS tuning range from -13.9 to -54.8 ps/nm(2) is achieved with the bandwidth of larger than 2.0 nm.
Kim
Sunduck
S
Photonics Research Laboratory, Division of Intelligent System, Korea Institute of Science and Technology (KIST), Seoul 130-791, Republic of Korea.
Bae
Junkye
J
Lee
Kwanil
K
Kim
Sang Hyuck
SH
Jeong
Je-Myung
JM
Lee
Sang Bae
SB