New high negative dispersion photonic crystal fiber

Investigation of high birefringence and chromatic dispersion management in photonic crystal fibre with square air holes

“…Among them, technique that consists of doping the core region with a high index material, like germanium [53][54][55][56], fluorine [57] and liquids [14], has been reported. In order to control the chromatic dispersion in our proposed PCF, we have considered a germanium-doped, as shown in figure 10.…”

“…The birefringence was also studied for this structure [39]. Comparatively to elliptical hole PCFs, the authors have found that rhombic holes PCFs exhibit more birefringence, up to 3 10 …”

“…Since their apparition for the first time in 1995 [2], PCFs have attracted a huge interest among the scientific community due to their several and unique optical properties. In fact, the high flexibility of the lattice design makes it possible the conception of PCFs with single mode behavior over a wide range of wavelengths [3], high birefringence [4][5][6][7][8][9], tailorable chromatic dispersion [10][11][12][13][14], high nonlinearity [15,16] and so on. Due to these properties, many potential applications can be achieved, such as: dispersion compensator fibers [17][18][19], polarization maintaining fibers [20][21][22], highly nonlinear fibers [23][24][25], supercontinuum generation [26], fiber based lasers [27][28][29], sensors [30][31][32], terahertz applications [33][34][35] etc.…”

Study of bandgap characteristics of three-dimensional photonic crystal with typical structures

“…Different devices are designed to meet the requirement for the propagation of electromagnetic wave frequencies by changing the photonic crystal structure, material parameters, filling ratio, etc. [8][9][10][11][12][13][14][15]. Photonic crystals are categorized into one-dimensional, two-dimensional, and threedimensional photonic crystals with a periodic structure.…”

Chromatic Dispersion Monitoring Method Based on Semiconductor Optical Amplifier Spectral Shift in 40 Gbit/s Optical Communication Systems

“…Due to the complicated cross section structure, many excellent optical properties can be obtained by careful selecting the photonic crystal fiber structure parameters, such as photonic crystal fibers with large negative dispersion can be achieved. (Chen et al, 2010) Optical fiber Bragg gratings with linear-chirp have emerged as powerful tools for chromatic dispersion compensation because of their potential for low loss, small footprint, and low optical nonlinearities (Sukhoivanov et al, 2009). Fiber Bragg gratings are section of single-mode fiber in which the refractive index of the core is modulated in a periodic fashion as a function of the spatial coordinate along the length of the optical single-mode fiber (Kashyap et al, 2009).…”