Design of dispersion-compensating fibers based on a dual-concentric-core photonic crystal fiber

Abstract

A photonic crystal fiber based on a particular periodic arrangement of airholes and pure silica is designed for chromatic dispersion compensation. A two-concentric-core structure is obtained by introducing two different sizes of capillaries (for the airholes) and exhibits very high negative chromatic dispersion [-2200 ps/(nm km) at 1550 nm]. The variation of optogeometric parameters is also investigated to evaluate the tolerance of the fabrication. Finally, the bending influence on the modal characteristics shows that it is possible to tune the phase-matching wavelength over the C band by adjusting the diameter of the fiber.

Circular Photonic Crystal Fibers: Numerical Analysis of Chromatic Dispersion and Losses

“…Both types of PCFs with a silica background can be successfully implemented to compensate the positive dispersion parameter and dispersion slope of the existing inline fibers [3,4]. These fibers can be engineered for designing ultraflattened near-zero dispersion [5][6][7] or can be engineered to have ultranegative dispersion values near the communication wavelength [8][9][10].…”

Optical Properties of Photonic Crystal Fibers With a Fiber Core of Arrays of Subwavelength Circular Air Holes: Birefringence and Dispersion

“…Thanks to the flexibility for the cross section design, photonic crystal fibers (PCFs) [1][2][3][4][5][6][7][8][9] have achieved excellent properties in birefringence [10][11][12][13][14][15][16][17][18][19], dispersion [20][21][22][23][24][25][26][27][28][29], single polarization single mode [30][31][32], nonlinearity [33], and effective mode area [34][35][36], and also excellent performances in the applications of fiber sensors [37,38], fiber lasers [39][40][41] and nonlinear optics [42][43][44][45] over the past several years. Large numbers of research papers have highlighted some optical properties of the PCFs such as ultrahigh birefringence and unique chromatic dispersion, which are almost impossible for the conventional optical fibers.…”

“…Moreover, compared with conventional optical fibers, PCFs have also shown their advantages in the control of chromatic dispersion which is very important for practical applications to optical communication systems, dispersion compensation, and nonlinear optics. Up to now, control techniques of the chromatic dispersion of PCFs are very attractive, and various PCFs with specific dispersion properties such as dispersion-flattened (DF) PCFs [22][23][24][25] and large negative dispersion PCFs [26][27][28][29] have been reported.…”

Hydrostatic Pressure Sensor Based on a Gold-Coated Fiber Modal Interferometer Using Lateral Offset Splicing of Single Mode Fiber

“…Hydrostatic pressure sensors based on birefringent fibers are not compact since they usually need non-fiber components to detect the pressure-induced phase or use the fiber Sagnac interferometer with a relatively long sensing fiber. PCFs [28][29][30][31][32] are the great success in the history of optical fibers, which have achieved excellent properties in birefringence [33][34][35][36][37][38][39][40], dispersion [41][42][43][44][45][46][47][48][49][50][51], single polarization single mode [52][53][54], nonlinearity [55], and effective mode area [56][57][58], and also excellent performances in the applications of fiber lasers [59][60][61] and nonlinear optics [62][63][64][65] over the past several years. PCFs have also further improved optical fiber sensors and have been used for strain sensing [66], gas sensing [67], biochemical sensing [68], refractive index sensing [69] and temperature sensing [70].…”