Design Optimization of Equiangular Spiral Photonic Crystal Fiber for Large Negative Flat Dispersion and High Birefringence

Islam, Amirul; Alam, M. Shah

doi:10.1109/jlt.2012.2222349

Cited by 77 publications

(18 citation statements)

References 23 publications

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“…Taking into account the actual fabrication process, the structural accuracy may be influenced by the nonuniformity of the device itself. To further analyze the geometrical errors, we define the power difference (PD) of core A and core B, PD as [32,36]: PD = 10 log 10 P coreA P coreB (2) where P coreA and P coreB are the output power of core A and core B, respectively. The fabrication flexibility is discussed as shown in Figure 9.…”

Section: Numerical Analysis and Simulated Resultsmentioning

confidence: 99%

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Ultra-Wide-Bandwidth Tunable Magnetic Fluid-Filled Hybrid Connected Dual-Core Photonic Crystal Fiber Mode Converter

Sun

2018

Crystals

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Abstract:We propose a tunable magnetic fluid-filled hybrid photonic crystal fiber mode converter. Innovative design principles based on the hybrid connected dual-core photonic crystal fiber and magnetically modulated optical properties of magnetic fluid are developed and numerically verified. The mode converter was designed to convert LP 11 in the index-guiding core to the LP 01 mode in the photonic bandgap-guiding core. By introducing the magnetic fluid into the air-hole located at the center of the photonic bandgap-guiding core, the mode converter can realize a high coupling efficiency and an ultra-wide bandwidth. The coupling efficiency can reach up to 99.9%. At a fixed fiber length, by adjusting the strength of the magnetic field, the coupling efficiency can reach up to 90% and 95% at wavelengths in the ranges of 1.33 µm-1.85 µm and 1.38 µm-1.75 µm, with bandwidth values reaching 0.52 µm and 0.37 µm, respectively. Moreover, it has a good manufacturing flexibility. The mode converter can be used to implement wideband mode-division multiplexing of few-mode optical fiber for high-capacity telecommunications.

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Section: Numerical Analysis and Simulated Resultsmentioning

confidence: 99%

“…[1][2][3], they have been receiving growing scientific and industrial interest [4][5][6]. Mounts for structures based on PCF have been designed, including index-guided PCFs [7], photonic bandgap fibers [8], hybrid PCFs [9], etc.…”

Section: Introductionmentioning

confidence: 99%

Ultra-Wide-Bandwidth Tunable Magnetic Fluid-Filled Hybrid Connected Dual-Core Photonic Crystal Fiber Mode Converter

Sun

2018

Crystals

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“…Recently, several PCF designs for high birefringent and broadband dispersion compensating have been reported [26][27][28][29], but it requires a very sophisticated manufacturing process to realize the reported PCFs because their cross sections are not based on the conventional lattice structure and all air holes are not circular.…”

Section: Introductionmentioning

confidence: 99%

Highly Birefringent and Dispersion Compensating Photonic Crystal Fiber Based on Double Line Defect Core

Lee

Jung

et al. 2016

Journal of the Optical Society of Korea

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We propose a highly birefringent and dispersion compensating photonic crystal fiber based on a double line defect core. Using a finite element method (FEM) with a perfectly matched layer (PML), it is demonstrated that it is possible to obtain broadband large negative dispersion of about -400 to -427 ps/(nm.km) covering all optical communication bands (from O to U band) and to achieve the dispersion coefficient of -425 ps/(nm.km) at 1.55µm. In addition, the highest birefringence of the proposed PCF at 1.55 μm is 1.92 × 10 -2 and the value of birefringence from the wavelength of 1.26 to 1.8 μm (covering O to U bands) is about 1.8 × 10 -2 to 1.92 × 10. It is confirmed that from the simulation results, the confinement loss of the proposed PCF is always less than 10 -3 dB/km at 1.55 μm with seven fiber rings of air holes in the cladding.

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“…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].…”

Section: Introductionmentioning

confidence: 99%

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

Mahmud

Razzak

Hasan

et al. 2016

Optik

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 We propose a photonic crystal fiber design that performs negative and ultraflattened chromatic dispersion of -251 to -256 ps.nm -1 .km -1 for X and -290 to -294 ps.nm -1 .km -1 for Y polarization mode respectively within a wide band wavelength of 1.25 to 1.7 µm (450-nm). The 1.25 to 1.7 µm bandwidth supports the second and third windows covering O+E+S+C+L+U bands in the infrared region. With these reported guiding properties, this fiber can be used for the application of residual dispersion compensation (RDC) in high-speed data transmission optical systems. The proposed RDCF provides ultra flattened dispersion property for both polarization mode i.e. dispersion variation (ΔD) of ±5 ps.nm -1 .km -1 for X and ±4 ps.nm -1 .km -1 for Y polarization mode.  The proposed RDCF has identical circular air holes that are placed in a triangular pattern which simplify the fabrication process. Abstract Analysis of numerical design and properties of a new silica based photonic crystal fiber (PCF) are proposed in this manuscript. The design performs ulta-flattened negative chromatic dispersion (UNCD) in the optical windows 2nd and 3rd involving O to U bands in the infrared (IF) portion. The guiding properties are observed by employing a circular perfectly matched layer (PML) boundary through the finiteelement method (FEM). The proposed design is compatible for the application of residual dispersion compensation (RDC) as it grants negative dispersion (ND) and

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Design Optimization of Equiangular Spiral Photonic Crystal Fiber for Large Negative Flat Dispersion and High Birefringence

Cited by 77 publications

References 23 publications

Ultra-Wide-Bandwidth Tunable Magnetic Fluid-Filled Hybrid Connected Dual-Core Photonic Crystal Fiber Mode Converter

Ultra-Wide-Bandwidth Tunable Magnetic Fluid-Filled Hybrid Connected Dual-Core Photonic Crystal Fiber Mode Converter

Highly Birefringent and Dispersion Compensating Photonic Crystal Fiber Based on Double Line Defect Core

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

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