Silica Based Highly Nonlinear Dispersion Compensating Photonic Crystal Fiber
01 Jul 2018-
TL;DR: In this article, a singlemode highly nonlinear square photonic crystal fiber (PCF) is proposed and investigated using the full-vector finite-element method (FEM) simulation tool COMSOL Multiphysics.
Abstract: A single-mode highly nonlinear square photonic crystal fiber (PCF) is proposed and investigated using the full-vector finite-element method (FEM) simulation tool COMSOL Multiphysics. The simulation result shows that dispersion of −1405 ps/(nm.km), and birefringence of 1.74×10-2, is obtained at excitation wavelength of 1550nm. The proposed square design also exhibits ultrahigh nonlinearity of 101.3 W−1km−1 at 1.55µm. By taking into account the fabrication issue, ±2% variation of diameter and pitch are also reported and discussed. Moreover, these modal properties are then compared against the results of some other contemporary PCF designs. The designed photonic crystal fiber can be used in optical back propagation process for compensating dispersion and nonlinearity.
Citations
More filters
01 Jul 2020
TL;DR: This proposed paper enhances its attraction for using single circular hole of air in the core site which is the most suitable one for the optical fiber communication systems.
Abstract: A single-mode defected core hexagonal photonic crystal fiber (H-PCF) is presented for the wide-band dispersion compensation at the wavelength interval 1350 to 1600 nm over the telecommunication windows. Finite element method (FEM) is incorporate to investigate the characteristics of the proposed PCF. Throughout the simulation, we found dispersion of −2160 ps.nm−1km−1 and high nonlinearity of 120 W−1km−1 at the operating wavelength of 1550 nm. Our proposed paper enhances its attraction for using single circular hole of air in the core site which is the most suitable one for the optical fiber communication systems.
References
More filters
TL;DR: In this article, a hybrid cladding photonic crystal fiber (PCF) for shaping nearly zero ultraflattened dispersion and low confinement losses in a wide range of wavelengths is presented.
Abstract: We present a hybrid cladding photonic crystal fiber (PCF) for shaping nearly zero ultraflattened dispersion and low confinement losses in a wide range of wavelengths. The finite difference method with anisotropic perfectly matched boundary layer is used to investigate the guiding properties. It has been shown theoretically that it is possible to obtain nearly zero ultraflattened dispersion of 0 plusmn0.25 mups/nm/km in a wavelength range of 1.44 to 2.0 mum with low confinement losses less than 0.005 dB/km within the entire band of interest from a five-ring hybrid cladding PCF.
80 citations
"Silica Based Highly Nonlinear Dispe..." refers background in this paper
...PCF offers significant pliability in tuning dispersion [1,2] which is important in designing dispersion compensating fiber....
[...]
TL;DR: Based on the hybrid cladding design, a singlemode photonic crystal fiber (PCF) is proposed to achieve an ultra-high birefringence and large negative dispersion coefficient using finite-element method.
Abstract: Based on the hybrid cladding design, a single-mode photonic crystal fibre (PCF) is proposed to achieve an ultra-high birefringence and large negative dispersion coefficient using finite-element method. Simulation results reveal that with optimal design parameters, it is possible to achieve an ultra-high birefringence of 2.64 × 10−2 at the excitation wavelength of 1.55 μm. The designed structure also shows large dispersion coefficient about −242.22 to −762.6 ps/nm/km over the wavelength ranging from 1.30 to 1.65 μm. Moreover, residual dispersion, effective dispersion, effective area, confinement loss and nonlinear coefficient of the proposed PCF are discussed thoroughly.
53 citations
TL;DR: In this article, a highly birefringent dispersion compensating hybrid photonic crystal fiber is presented, which successfully compensates the chromatic dispersion of standard single mode fiber over E-to-L communication bands.
Abstract: A highly birefringent dispersion compensating hybrid photonic crystal fiber is presented. This fiber successfully compensates the chromatic dispersion of standard single mode fiber over E- to L-communication bands. Simulation results reveal that it is possible to obtain a large negative dispersion coefficient of about −1054.4 ps/(nm km) and a relative dispersion slope of 0.0036 nm −1 at the 1550 nm wavelength. The proposed fiber simultaneously provides a high birefringence of order 3.45 × 10 −2 at the 1550 nm. Moreover, it is confirmed that the designed fiber successfully operates as a single mode in the entire band of interest. For practical conditions, the sensitivity of the fibers dispersion properties to a ±2% variation around the optimum values is carefully studied and the nonlinearity of the proposed fiber is also reported and discussed. Such fibers are essential for high speed transmission system as a dispersion compensator, sensing applications, fiber loop mirrors as well as maintaining single polarization, and many nonlinear applications such as four-wave mixing, etc.
46 citations
"Silica Based Highly Nonlinear Dispe..." refers result in this paper
...21 times higher than [11, 13, 9, 12], respectively....
[...]
...The gained nonlinearity of the proposed fiber is much higher as compared with some contemporary PCFs....
[...]
...The proposed PCF is much easier to fabricate as compared with several recent PCFs....
[...]
...Moreover, the reported birefringence is much small as compared with recent PCFs [11]....
[...]
...15 times higher than [11,13,9], respectively....
[...]
TL;DR: In this article, a single mode circular photonic crystal fiber (C-PCF) was proposed for broadband dispersion compensation covering 1400 to 1610nm wavelength band over the telecommunication windows.
42 citations
"Silica Based Highly Nonlinear Dispe..." refers methods in this paper
...Fabrication process of this designed PCF is much easier because of same type of circular air holes are used in the design [10]....
[...]
TL;DR: Aiming at the requirements of high birefringence and negative dispersion in fiber-optic communication and sensing systems, a novel type of photonic crystal fiber (PCF) is proposed in this article.
28 citations