Alcohol sensing over O+E+S+C+L+U transmission band based on porous cored octagonal photonic crystal fiber

Abstract

Abstract:A micro structure porous cored octagonal photonic crystal fiber (P-OPCF) has been proposed to sense aqueous analysts (alcohol series) over a wavelength range of 0.80 m to 2.0 m. By implementing a full vectorial finite element method (FEM), the numerical simulation on the proposed O-PCF has been analyzed. Numerical investigation shows that high sensitivity can be gained by changing the structural parameters. The obtained result shows the sensitivities of 66.78%, 67.66%, 68.34%, 68.72%, and 69.09%, and the confinement losses of 2.42×10 10 dB/m, 3.28×10 11 dB/m, 1.21×10 6 dB/m, 4.79×10 10 dB/m, and 4.99×10 9 dB/m at the 1.33 m wavelength for methanol, ethanol, propanol, butanol, and pentanol, respectively can satisfy the condition of much legibility to install an optical system. The effects of the varying core and cladding diameters, pitch distance, operating wavelength, and effective refractive index are also reported here. It reflects that a significant sensitivity and low confinement loss can be achieved by the proposed P-OPCF. The proposed P-OPCF also covers the wavelength band (O+E+S+C+L+U). The investigation also exhibits that the sensitivity increases when the wavelength increases like S O-band <S E-band <S S-band < S C-band <S L-band <S U-band . This research observation has much pellucidity which has remarkable impact on the field of optical fiber sensor.

Terahertz Sensor via Ultralow-Loss Dispersion-Flattened Polymer Optical Fiber: Design and Analysis

“…It was found that the birefringence is sensitive to the varying frequency. It was seen that the birefringence is about 1.91 × 10 −3 at the frequency of 1.2 THz, which is comparable to previous reports [ 16 , 68 , 73 , 77 ]. The high birefringence of the sensor can be obtained by introducing asymmetric defects such as a porous core.…”

“…Moreover, from the results, the effective mode area is 1.65 × 10 5 μm 2 , and the numerical aperture is about 0.33 at 1.2 THz. However, most previously designed sensors ignored the effective mode area [ 69 , 70 , 76 , 77 , 78 , 79 , 80 , 81 ] and numerical aperture [ 10 , 71 , 72 , 73 , 74 , 75 , 76 , 78 , 79 , 80 , 81 ] of the PCF.…”

“…Moreover, from the results, the effective mode area is 1.65 × 10 5 µm 2 , and the numerical aperture is about 0.33 at 1.2 THz. However, most previously designed sensors ignored the effective mode area [69,70,[76][77][78][79][80][81] and numerical aperture [10,[71][72][73][74][75][76][78][79][80][81] of the PCF. The technical problems to be considered in designing THz waveguides are mainly to realize low loss and flat dispersion in THz transmission, so as to replace the control of THz transmission of traditional optical devices in free space, and to finally promote the development of a compact THz system.…”

Giant Nonlinear AlGaAs-Doped Glass Photonic Crystal Fibers for Efficient Soliton Generation at Femtojoule Energy

“…) − ∂ L ∂r j = 0, where, r j = T, C, t p , and φ. We now introduce the perturbed vibrational procedure to solve equation (2) with small but finite value of G. Since the GNLSE contains perturbation terms, therefore, the modified Euler-Lagrange equations can be written as,…”

Benzene Shape Photonic Crystal Fiber Based Plasma Sensor: Design and Analysis

“…In addition, they showed and picked up the NA of 0.36 for U-band. In 2017, same authors enhanced the sensitivity of 1.06 times for identification liquor from drinks [28]. However, they didn't demonstrate the other pivotal parameters.…”