Novel broadband dispersion compensating photonic crystal fibers: Applications in high-speed transmission systems

Dispersion compensation in optical transmission systems using high negative dispersion chalcogenide/silica hybrid microstructured optical fiber

“…However, the higher the negative dispersion of the DCF, the less the length of the DCF needed to compensate for dispersion. Due to the non-linear effect of the light transmission environment and the creation of frequency chirp, it would be impossible to achieve perfect dispersion compensation [7].…”

“…For this purpose, the dispersion and its slope should be compensated simultaneously [7]. To investigate the possibility of dispersion compensation in a wide range of wavelengths, the relative dispersion slope (RDS) is used.…”

Photonic Crystal Fiber for Medical Applications

“…Currently, it is reported that the OCT imaging at 1.5 ~ 1.6 m broadband light source can be readily applied to take images of human tooth samples [Lee et al, 2009]. On the other hand, telecommunication window (around 1.55 m) is the most attractive window in optical communication systems, dispersion compensation and nonlinear optics because of the minimum transmission loss of the fiber [Begum et al, 2007a[Begum et al, , 2007b[Begum et al, , 2009a. Photonic crystal fibers (PCFs) [Russel, 2003], a pure silica core optical fibers with tiny air holes embedded in the host silica matrix running along the propagation axis, have boosted the fiber optic research due to their remarkable modal properties such as provide singlemode operation for very short operating wavelengths [Knight et al, 1996], remain singlemode for large scale fibers [Knight et al, 1998], achieve high birefringence [Kaijage et al, 2000], and controllable dispersion characteristics [Begum et al, 2009b] which cannot be achieved with conventional optical fibers.…”

A novel dispersion compensating fiber with multiple windows based on hybrid photonic crystal fiber

“…Begum et. al [8][9][10][11][12][13][14] proposed some DCF based on different size of air hole rings or removing a ring of air-holes to make a dual-core structure to get a large negative dispersion, but this type of DCF is difficult to manufacture. Another way to get a dual-core structure is to positively doped the inner-core of the fiber or got a high refractive index outer-ring in the PCF, such as the methods mentioned in [15][16][17][18][19][20], one can reach a very high negative dispersion.…”