@article { author = {Mansouri-Birjandi, Mohammad Ali and Jafari, Esmat}, title = {Wideband Dispersion Compensation in Square Lattice Photonic Crystal Fibe}, journal = {Journal of Communication Engineering}, volume = {7}, number = {1}, pages = {49-61}, year = {2018}, publisher = {Shahed University}, issn = {2322-4088}, eissn = {2322-3936}, doi = {10.22070/jce.2018.2424.1047}, abstract = {In this paper, a new structure is provided for the dispersion compensating photonic crystal fibers in order to broaden the chromatic dispersion and increase the dispersion compensating capability in a wide wavelength range. In the structure, putting a combination of circular holes and a star structure in the inner core clad causes the dispersion coefficient profile to be broadened, and additionally causes the fiber to have a negative dispersion coefficient in the whole S to U telecommunication bands. In this fiber, the minimal dispersion coefficient will be -653ps/(nm.km). Furthermore, with the diameter of the circular holes of the inner clad in this structure increased, a relatively flat dispersion profile will be obtained in the whole E to U telecommunication bands with a dispersion variation equal to 46ps/(nm.km). In the S to C telecommunication bands, the dispersion variation is 17ps/(nm.km). The simulations are all done using the finite difference time domain numerical (FDTD) method.}, keywords = {Chromatic dispersion,Dispersion compensation,Negative dispersion,photonic crystal fiber}, url = {https://jce.shahed.ac.ir/article_610.html}, eprint = {https://jce.shahed.ac.ir/article_610_8f981c00620fe693757564c6bd8b8161.pdf} }