Dispersion Accommodation Based on a Defect Layer in Hollow Single-Mode Bragg Fiber

The dispersion accommodation technique based on defect layer are reported direct against the large positive dispersion of hollow single-mode Bragg fiber at 1.55 μm which can increase the potential of hollow single-mode Bragg fiber in applications. First, the interaction between defect mode and fundamental mode are analyzed by using the optical software FDTD Solutions. Then, a comparative study on the dispersion curves of hollow single-mode Bragg fiber with and without defect layer is done. And then, the defect layers with different parameters are discussed separately. The simulation results show that by changing the refractive index, thickness and position of the defect layer, the fiber dispersion can be changed from zero to 7 × 10
⁴
ps /(nm·km). Finally the dispersion accommodations in hollow single-mode Bragg fiber based on defect layer are summarized.