Microstructured Optical Fiber for Residual Dispersion Compensation Over $S + C + L + U$ Wavelength Bands

Chromatic Dispersion of an Optical Fiber Based on Photonic Quasicrystals with Twelve-Fold Symmetry and its Application as Directional Coupling

“…Recently, studies have found that quasi-periodic structures can originate an important phenomena and properties which are not observed in periodic structures [3], [4]. For example, introduction of 12-fold symmetry in quasicrystals through air holes in a dielectric matrix with low refractive index creates photonic gaps, i.e., frequency bands in which the light propagation is totally prohibited, except for the case of some PCFs settings that allow the propagation of light through the Photonic Band Gap (PBG) [4], [15].…”

Design and Modal Analysis of Photonic Crystal Fiber for Dispersion Compensation over Broadband Range

“…The inner structure is core region which helps to produce better negative dispersion. The number of air-hole rings in core region is selected such that it gives large negative dispersion, at the same time the number of air-hole rings at the outer structure is chosen to give low confinement loss [5]. In all the four proposed structures, there are five air-hole rings at the outer structure to reduce the confinement loss.…”

“…al. [5] used microstructure of PCF and investigated ultra-flattened negative dispersion of -179 ps/nm/km and ∆D= 2.1 ps/nm/km over S to U wavelength band i.e. wavelength bandwidth of 1.48 to 1.675 µm.…”

A new photonic crystal fiber design on the high negative ultra-flattened dispersion for both X and Y polarization modes

“…Properly engineering the position, dimension and number of air holes, PCFs grant some attractive properties like ultraflattened chromatic dispersion, very high nonlinearity, lofty sloping negative dispersion, slight confinement loss (LC), small and huge effective mode area (Aeff), meager bending loss and high birefringence (B) [2][3][4]. The property of negative flattened dispersion (being used for residual dispersion compensation), is one of the most remarkable characteristics [5][6][7][8][9][10][11][12][13]. However, a major drawback of the Page 4 of 28 conventional single mode optical fiber (SMOF) is that during application in long transmission system, it gives positive dispersion of 12 to 22 ps/nm/km which can greatly increase when the optical signal passes over longer distance via that SMOF [2].…”