Theoretical study and experimental fabrication of high negative dispersion photonic crystal fiber with large area mode field

Abstract

We present a systematic process of theoretical design and experimental fabrication of the large mode area and large negative dispersion photonic crystal fiber. An easily fabricated fiber structure is proposed. The influence of structure parameters deviations from the design on the chromatic dispersion are evaluated and a design rule is given. Finally our fabricated fiber and test results are demonstrated. The measured effective area of inner core mode is 40.7 mum(2) which is the largest effective area of high negative dispersion photonic crystal fibers that have been experimentally fabricated. The measured peak dispersion is -666.2ps/(nm.km) and the bandwidth is 40nm.

Study on dual-concentric-core dispersion compensation photonic crystal fiber

“…To obtain a very high dispersion, lots of designs have been proposed, such as W-model, multi-cladding model, dualconcentric-core model [2][3][4][5][6][7][8][9][10][11][12] and so on. However, the dualconcentric-core model does better than the others.…”

“…It has a high index inner core and a defect ring of reduced holes diameter in the cladding. Researchers simulate and design this kind of fiber, and have attained very high negative dispersion [7][8][9][10][11][12]. However, such high refractive index doping is difficult to realize and high doping of the core is the increasing loss due to higher GeO2.…”

“…Recently, because the structure design of the photonic crystal fiber (PCF) is flexible and dual-concentric-core fiber (DCCF) could attain high negative dispersion easily, some investigations of dual-concentric-core photonic crystal fiber (DCCPCF) [2][3][4][5][6][7][8][9][10][11][12] have attracted considerable attentions.…”

Single-Nanoweb Suspended Twin-Core Fiber for Optical Switching

“…However, much of the optical switches are still predominantly performed electrically in recent applications. With the emergence and development of the microstructure fiber (MSF) which has shown a great success to achieve unique properties such as high birefringence [28][29][30][31][32][33][34][35][36], flattened dispersion [37][38][39][40], large negative dispersion [41,42], high nonlinearity [43,44], endless single mode [45] and so on, there emerges a new opportunity for the exploration of optical switching technology that it is possible to make the optical fiber be an optical switch. Recently, a type of nanomechanical optical fiber [46] has been proposed and demonstrated, which has two fiber cores independently suspended within the fiber.…”

Bending Analysis of a Dual-Core Photonic Crystal Fiber

“…The appearance of photonic crystal fibers (PCFs) [1][2][3][4][5][6][7][8][9][10] with silicaair microstructure is a milestone in the history of optical fibers, which have achieved excellent optical properties in birefringence [11][12][13][14][15][16], dispersion [17][18][19][20], single polarization single mode [21][22][23][24][25], nonlinearity [26][27][28][29][30], and effective mode area [31][32][33][34][35] over the past several years. It is well known that PCFs have shown excellent performances in applications such as optical communications [36][37][38], fiber lasers [39][40][41][42], supercontinuum sources [43][44][45][46] and also fiber sensors ...…”