Simulating chaotic dynamics with variable polarisation of VCSEL twin lasers using FBG as a dynamic sensor

Ghayib, Zainab R; Hemed, Ayser A.

doi:10.1007/s12043-022-02305-2

Cited by 6 publications

(4 citation statements)

References 27 publications

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“…The FBG sensor in Optisystem also has strain value limitation that cause the wavelength were shifting when the value of strain changed. From the Figure (5), the values of simulation and theory weren't the same due to the design of the parameter groups in the simulation software. In addition, there was a special optical fiber composition used in the simulation that could influence the wavelength values via dispersion, as mentioned in theory as material dispersion relations, such as Ref.…”

Section: Resultsmentioning

confidence: 99%

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Characterization Study of Double Filtered Sensor Length Effect on Strain Sensitivity

Jabbar,

Hemed,

Fadhala

et al. 2023

East Eur. J. Phys.

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In this simulation study, Optisystem 18 software is used to monitor and study the effectiveness of side strain on selected lengths of two virtual uniform fiber Bragg grating (FBG) sensors. The operational FBG sensor Bragg wavelength was 1550 nm, which is used to find the measured shift in deflected light source optical spectrum. This value is also supplied by the light source to offer the minimum absorption and attenuation during transmission inside the optical fiber. Reliability of the sensor and technique of transferring the signal under such effect are screened. The investigator is also used to observe the shift in wavelength with altered applied side strain. The influence of sensor active length on side strain sensitivity is studied where according to theory, the length of the FBG influences the sensitivity via reflectivity . The constructed sensor sensitivity is observed against length before and during the experiment. The sensing principle, in essence, depends on tracking the wavelength shift due to the variation of such strain. Results achieved in this study show an inverse relationship between sensor effective length and shift in the observed wavelength. The measured strain sensitivity is carried out for the active sensor length, which ranges from 0.05 to 15 cm, with corresponding sensitivity values of 1.19 pm/ OC to 0.9 pm/OC, respectively, under the same strain conditions. The empirical results also show the success of the suggested sensing system in measuring strain. The strain measurement, ε, is linearly increasing, identical to the increasing values of the wavelength shift of Bragg. It's also been observed that the wavelength of Bragg is shifting during small ratios in the length protraction of the FBGs.

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Section: Resultsmentioning

confidence: 99%

“…From the other hand, applications with FBGs includes in additional to sensing, laser experiments for chaotic generation in parallel to sensing such as studies listed in Refs. [5] [6] [7].…”

Section: Introductionmentioning

confidence: 99%

Characterization Study of Double Filtered Sensor Length Effect on Strain Sensitivity

Jabbar,

Hemed,

Fadhala

et al. 2023

East Eur. J. Phys.

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“…Uniform and nonuniform FBG Sensor design of (L=10mm) active length with Bragg wave length 1550 nm tested under temperatures (20-60 o C) with step 10 degree. Where the values plotted in figure (7) are drawn from radio frequency spectra for all tested values which is given in figure (8). In which the frequency shift is easy to observe versus the changed parameter in comparisons with multi regions FBG that experimentally investigated by Ref.…”

Section: Effect Of Temperature On Sensing Powermentioning

confidence: 99%

“…Furthermore, the FBG sensor itself has recently been continuously enriched by research due to its applications in optical communications [5], such as smart frequency filtering [5], [6], [7], dynamical encrypting with chaotic communications [8], [9], [10], [11].…”

Section: Introductionmentioning

confidence: 99%

Effect of GeO2 Dopants in FBG Sensor Performance for Temperature and Strain

Jabbar,

Hemed,

Fadhala

et al. 2023

East Eur. J. Phys.

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In this simulation study, the response of fiber Bragg grating (FBG) sensors is investigated and optimized. Uniform and nonuniform FBG spectra with new component are suggested by fine selection with (COMSUL program) and compared theoretically under the effect of several external strain values (0.005, 0.006, 0.007, 0.008, 0.009 and 0.01). These two types operation have been examined by the Optisystem programmer. The measured sensitivity was based on VCSEL laser source with operation wavelengths of 1650, 1600, and 1550 nm via non-uniform and uniform configuration. The achieved sensitivity was found to have different values; 5.7, 2.6, and 1.77, while the highest observed sensitivity value is recorded at a wavelength of 1550 nm. Accordingly, this wavelength was chosen to advance the study. Temperatures of 20, 30, 40, 50, and 60 degrees Celsius were applied. Measured sensitivity between them varied, and satisfied the following functions: sine, Gauss, and Boltzmann indicating altering in sensor responses.

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Effect of laser diode operating parameters on a chaotic signal generated by a filtered optical FLM

Fadhala,

Khorsheed

2024

J Opt

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Simulating chaotic dynamics with variable polarisation of VCSEL twin lasers using FBG as a dynamic sensor

Cited by 6 publications

References 27 publications

Characterization Study of Double Filtered Sensor Length Effect on Strain Sensitivity

Characterization Study of Double Filtered Sensor Length Effect on Strain Sensitivity

Effect of GeO2 Dopants in FBG Sensor Performance for Temperature and Strain

Effect of laser diode operating parameters on a chaotic signal generated by a filtered optical FLM

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