Tunable dispersion slope compensator using two uniform fiber Bragg gratings mounted on S-shape plate

Abstract

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. (C) 2009 Optical Society of America