| As the data transmission rate keeps increasing, the chromatic dispersion causing pulse broadening becomes an important factor of signal degradation in fiber optical networks. Many efforts have been drawn to the development of dispersion compensating devices to recover or prevent the broadening signal pulse. A novel design of tunable dispersion compensating fiber Bragg grating (FBG) device is demonstrated in this paper. This device can provide a dynamically tunable dispersion through an adjustable chirped FBG by physically deformation of the FBG. The theory of operation and experiment result are presented. |
