Numerical analysis of photonic crystal fiber of ultra-high birefringence and high nonlinearity

Agbemabiese, Patrick Atsu; Akowuah, Emmanuel Kofi

doi:10.1038/s41598-020-77114-x

Cited by 40 publications

(23 citation statements)

References 57 publications

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“…where c, β2 and neff(λ) are the velocity in free space, the second-order dispersion, and the LC-PCFs effective index of the fundamental mode respectively. We calculated the effective refractive index neff and the confinement loss (CL) [23] of the fiber by using COMSOL software. Then the birefringence (B), the two polarization modes effective mode area (Aeff) and the nonlinear coefficient (γ), the chromatic dispersion (D) and the higher-order dispersion coefficient βm (m≥2) are calculated [45], respectively.…”

Section: A High Birefringence Lc-pcf Numerical Modelmentioning

confidence: 99%

Polarized Supercontinuum Generation in CS₂-Core All-Normal Dispersion Photonic Crystal Fiber

et al. 2022

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We numerically analyze a polarization maintaining (PM) supercontinuum generation (SCG) in all-normal dispersion liquid (CS2)-core photonic crystal fiber (LC-PCF). The proposed LC-PCF affords a high birefringence (10 -3 to 10 -2 ) from 1.0 μm to 2.2 μm wavelength with fundamental mode behavior. The linear polarization and high coherence spectral width for X and Y polarized axes covers 1.32 μm～2.28 and 1.28 μm～2.24 μm with pump wavelength of 1.55 μm at pump power of 2 kW, respectively. Furthermore, we found that the ability of maintaining linear polarization state of SC source for X-axes is better than that of Y-axes as the pulse duration varies from 0.05 ps to 0.6 ps at the same pump wavelength. In addition, the proposed LC-PCF-based SC source is a good candidate for applications such as biomedical imaging, fluorescence lifetime imaging fields, and frequency comb sources.

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Section: A High Birefringence Lc-pcf Numerical Modelmentioning

confidence: 99%

Polarized Supercontinuum Generation in CS₂-Core All-Normal Dispersion Photonic Crystal Fiber

et al. 2022

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“…Since in the HC-PCFs, the light is guided within air, loss factors such as absorption and the Rayleigh scattering are too small [ 2 , 45 ]; therefore, they were disregarded. The confinement loss is as follows [ 46 ]:

where

was retrieved from the imaginary component of Equation (9); thus, one can estimate the transmission windows that are formed by both the external and internal AR propagations, and consequently, the expected transmission spectrum of the HSCF, considering the total modal losses inherent to the HSCF length ( l ). Notice that to attain the expected transmission profile, a normalization was carried out to the numerical results to better perform a comparison with the experimental results that will be described further ahead.…”

Section: Principle Of Operationmentioning

confidence: 99%

Double Antiresonance Fiber Sensor for the Simultaneous Measurement of Curvature and Temperature

Pereira

Bierlich

Kobelke

et al. 2021

Sensors

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Antiresonant hollow core fibers (ARHCFs) have gained some attention due to their notoriously attractive characteristics on managing optical properties. In this work, an inline optical fiber sensor based on a hollow square core fiber (HSCF) is proposed. The sensor presents double antiresonance (AR), namely an internal AR and an external AR. The sensor was designed in a transmission configuration, where the sensing head was spliced between two single mode fibers (SMFs). A simulation was carried out to predict the behaviors of both resonances, and revealed a good agreement with the experimental observations and the theoretical model. The HSCF sensor presented curvature sensitivities of −0.22 nm/m−1 and −0.90 nm/m−1, in a curvature range of 0 m−1 to 1.87 m−1, and temperature sensitivities of 21.7 pm/°C and 16.6 pm/°C, in a temperature range of 50 °C to 500 °C, regarding the external resonance and internal resonance, respectively. The proposed sensor is promising for the implementation of several applications where simultaneous measurement of curvature and temperature are required.

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“…ESs are limited because of their immense data to be transferred with high speed, which enabled all optical switches, tunable lters and optical sensors to solve this problem [19]. The Optical Sensor (OS) is designed using Optical Fiber (OF), Photonic Crystal Fiber (PhCF) and Photonic Crystals (PhCs) [20][21]. In addition, a quality factor (Q) with a high sensitivity (S) gure as the most important parameters to characterize using an optical sensor.…”

Section: Introductionmentioning

confidence: 99%

Study of the Modeling of a Photonic Crystal Structure using COMSOL for the Design of a Temperature Sensor

Ghoumazi¹

2022

Preprint

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in this paper, we present a design of a two-dimensional photonic crystal-based temperature sensor (PhCs_2D). It is designed to detect temperature based on the effective modulation of the refractive index of silicon (n_Si). This temperature is monitored by the sensor for values ranging from T = 0°C to °T = 68°C. To analyze the detection principle, this two-dimensional square lattice structure is based on a Photonic Crystal Ring Resonator with a Swiss Cross in the middle (PCRR). The resonator is wedged between two parallel waveguides in a square lattice based on silicon rods immersed in the air, hence the refractive index equal to 3.46. This resonator has been studied as a promising solution due to the deformation, the extreme sensitivity as well as the variation of the position of the rods or cavities within the PhC resonators. It plays a relevant role in the detection of different temperature levels (T) over a wide dynamic range. We investigate the propagation and transmission of this structure that opens an optical channel drop filter (CDF) and the study is extended for tuning the channel filter (CDF) wavelength with temperature. The band diagram is analyzed and the transmission characteristics are obtained using plane wave expansion (PWE) and finite element method (F.E.M) respectively. This method evaluates the functional parameters of the sensor such as: resonance wavelength (λ_res), quality factor (Q), dynamic range, transmission efficiency and sensitivity (S). Our results show a resonance wavelength shift of the PCRR that increases linearly with increasing temperature. In this work, shift is used for sensor application. By F.E.M simulation under COMSOL software, we were able to obtain a resonance wavelength at 1640nm, a quality factor at 410 and a sensitivity of 370.6 pm/℃. The exceptional sensing capability makes PhC resonators a promising opto-mechanical sensing element to be integrated into various transducers for temperature sensing applications.

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Numerical analysis of photonic crystal fiber of ultra-high birefringence and high nonlinearity

Cited by 40 publications

References 57 publications

Polarized Supercontinuum Generation in CS₂-Core All-Normal Dispersion Photonic Crystal Fiber

Polarized Supercontinuum Generation in CS₂-Core All-Normal Dispersion Photonic Crystal Fiber

Double Antiresonance Fiber Sensor for the Simultaneous Measurement of Curvature and Temperature

Study of the Modeling of a Photonic Crystal Structure using COMSOL for the Design of a Temperature Sensor

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Numerical analysis of photonic crystal fiber of ultra-high birefringence and high nonlinearity

Cited by 40 publications

References 57 publications

Polarized Supercontinuum Generation in CS2-Core All-Normal Dispersion Photonic Crystal Fiber

Polarized Supercontinuum Generation in CS2-Core All-Normal Dispersion Photonic Crystal Fiber

Double Antiresonance Fiber Sensor for the Simultaneous Measurement of Curvature and Temperature

Study of the Modeling of a Photonic Crystal Structure using COMSOL for the Design of a Temperature Sensor

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Polarized Supercontinuum Generation in CS₂-Core All-Normal Dispersion Photonic Crystal Fiber

Polarized Supercontinuum Generation in CS₂-Core All-Normal Dispersion Photonic Crystal Fiber