A photonic quasi-crystal fiber composed of circular air holes with high birefringence and low confinement loss

Liu, Qiang; Ren, Zonghuan; Liu, Wei; Sun, Yichuang; Lv, Tingting; Liu, Chao; Lu, Wenshu; Li, Binwen; Jiang, Yu-Wei; Sun, Tao; Chu, Paul K.

doi:10.1016/j.ijleo.2021.166497

Cited by 5 publications

(3 citation statements)

References 36 publications

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“…There have been significant changes in fiber optic sensors (FOS). FOSs inherit all the unique features of optical fibers, which puts FOSs under much attention, leading to their fast growth [7]- [8]. The functional area of FOSs is decided by its modulation method.…”

Section: Introductionmentioning

confidence: 99%

Study of Vector Bending Sensor in Various Configurations

Moazzi Garamaleki,

Makouei

2024

AAES

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A triple-core photonic crystal fiber (TCPCF) vector bending sensor has been introduced to study geometric parameter changes. The TCPCF shows a linear relationship between effective refractive index and input wavelength near 1.55µm. An asymmetrical geometry has been proposed for sensing both the direction and amplitude of the bend. The geometry of fiber creates an asymmetrical refractive index profile that leads to shifts in light speed in different fiber sections during the bend. The finite element method is used to study all sensor structures. The variation of the distance between cores, air hole diameter, and the angle between the side cores are studied. This sensor's need for precise and complex fabrication techniques is one of their challenges. Another challenge the design of these types of sensors faces is calibration for different environments and fabrication methods after fabrication is finished.

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Section: Introductionmentioning

confidence: 99%

Study of Vector Bending Sensor in Various Configurations

Moazzi Garamaleki,

Makouei

2024

AAES

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“…This sensor has high sensitivity and high absorption of CO. PCFs inherit the proprieties of optical fibers, such as high sensitivity, low noise and low cost, small size, and immunity to electromagnetic interference 16 – 19 One of the important features of this sensor is non-invasive nature of sensing. The proposed method also provides more affordable tests that make healthcare available for people.…”

Section: Introductionmentioning

confidence: 99%

Hollow core photonic crystal fiber based carbon monoxide sensor design applicable for hyperbilirubinemia diagnosis

2023

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.One of the modern ways to diagnose diseases is through exhale gas of patients, which is non-invasive and therefore desirable to doctors. The composition of exhaled breath contains valuable information for identifying hyperbilirubinemia disease. The accumulation of bilirubin and its lack of excretion causes jaundice, and the production of bilirubin has a direct relationship with exhaled carbon monoxide (CO). A CO diagnostic sensor based on a photonic crystal fiber (PCF) that can detect hyperbilirubinemia has been designed. This method can be used repeatedly to detect and treated jaundice in time. The PCF is designed as a hexagon. The holes in the cladding are circular and the holes in the core are circular and oval. Finite element method is used to do all the numerical simulations. COMSOL Multiphysics software was used to obtain the results. In this setup, CO absorption wavelength is 1.567 μm, and the relative sensitivity of 64.28% is reported with confinement loss of 3.81 × 10 − 3 dB / m.

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“…Instead of adjusting the length and width of the fiber core by increasing or decreasing the number of air holes, the structure designed by the arrangement and combination of air holes, which restricts the energy in the center and forms an elliptical mode field, belongs to the elliptical fiber core [9,[11][12][13][14][15][16][17][18][19][20]. Elliptical fiber cores are generally composed of all-circular air hole arrangements [15], all-elliptical air hole arrangements [17], or a combination of circular and elliptical air holes [18] to limit energy in the fiber core.…”

Section: Introductionmentioning

confidence: 99%

A Highly Birefringent Photonic Crystal Fiber with Three Rows of Circular Air Holes

et al. 2023

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An exceptionally high-performance, high-birefringent photonic crystal fiber (PCF) is meticulously designed. The core design features a unique arrangement in which the central row of circular air holes is substituted by three rows of smaller circular holes. Subsequently, the middle row is adjusted to achieve various rectangular mode field configurations. With the optimized structure parameters, the birefringence of the PCF can reach 3.57 × 10−2 at a wavelength of 1.55 μm. The confinement loss is as low as 8.4 × 10−6 dB/m. The nonlinear coefficient is up to 41 W−1·km−1. The dispersion is relatively flat within the range from 1.3 μm to 1.9 μm. These remarkable characteristics render the proposed PCF a strong candidate for applications in polarization preservation, dispersion compensation, wideband supercontinuum generation, and other related fields.

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A photonic quasi-crystal fiber composed of circular air holes with high birefringence and low confinement loss

Cited by 5 publications

References 36 publications

Study of Vector Bending Sensor in Various Configurations

Study of Vector Bending Sensor in Various Configurations

Hollow core photonic crystal fiber based carbon monoxide sensor design applicable for hyperbilirubinemia diagnosis

A Highly Birefringent Photonic Crystal Fiber with Three Rows of Circular Air Holes

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