Mathematical modeling of signal transfer process into optical system of a linear displacement encoder

Shishova, M. V.; Одиноков, С. Б.; Лушников, Д. С.; Жердев, А. А.; Gurylev, O. A.

doi:10.1016/j.proeng.2017.09.676

Cited by 11 publications

(2 citation statements)

References 12 publications

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“…Research on optical signal processing is an important aspect of optical communication systems because it has a very fast response rate [7]. This is closely related to the use of nonlinear refractive indices in optical fibers.…”

Section: Introductionmentioning

confidence: 99%

Intensity variability in stationary solutions of the Fractional Nonlinear Schrödinger Equation

Ramli,

Nazaruddin,

Ikhwan

et al. 2024

ITM Web Conf.

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Solitons that propagate in optical fiber with indexes of refraction, dispersion, and diffraction are balanced, making pulses or electromagnetic waves propagate without any distortion. This is closely related to use of nonlinear refractive index in fiber optics. If an optical fiber only uses a nonlinear refractive index, then the partial signal can be lost over time. This study aims to analyze the variability of stationary solutions in multi-solitons formed using Fractional Nonlinear Schrödinger (FNLS). The parameter p indicates energy level of the solution to FNLS equation which has a positive integer value. This study focuses on 3 variations of p values, namely p = 0 which indicates the ground state, p = 1 which indicates the first excited state, and p = 2 which indicates the second excited state. During the first to second excited state, multi soliton peaks are formed with the same amplitude symmetrically. The amplitude experienced by the middle soliton in second excited state is lower which indicates the input signal obtained from the FNLS solution in the ground state in the form of triple-soliton. The polarization mode cause the soliton pulse width to shrink and the consequent amplitude in the first excited state to increase.

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Section: Introductionmentioning

confidence: 99%

Intensity variability in stationary solutions of the Fractional Nonlinear Schrödinger Equation

Ramli,

Nazaruddin,

Ikhwan

et al. 2024

ITM Web Conf.

View full text Add to dashboard Cite

show abstract

“…Both theoretical and experimental semiconductor quantum dots have been intensively investigated in recent decades and are considered as an active medium for optical devices . The quantum confinement of nanoparticles, leading to a blue shift in optical luminescence, is attractive both for fundamental and experimental studies due to the material's optical linear and nonlinear properties . This system could be used for optical devices such as all optical analogue to digital converters, nanoelectronics, nonlinear optical devices, high‐density information storage, and catalysis, due to the optical nonlinearity of the quantum dots that is greater than in bulk crystals.…”

Section: Introductionmentioning

confidence: 99%

Room temperature photoluminescence of PbS quantum dots: Capping agent and thermal effect

2019

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The most efficient method for obtaining high concentration, monodispersed quantum dots is the sol gel method. This manuscript reports room temperature photoluminescence (PL) of lead sulfide (PbS) quantum dots with the effect of a capping agent. Lead sulfide quantum dots were prepared from a waveguide sol gel material with an organic–inorganic capping agent. The quantum dots were made using silica, a photoreactive methylmethacrylate group and a zirconia sol gel solution to give various concentrations of PbS quantum dots. UV–visible absorption spectra linearly increased with increasing PbS quantum dot concentration up to 10 649 ppm, after which increase was nonlinear. At room temperature, strong photoluminescence was achieved with a weak excitation light source, and the intensity increased almost linearly. This indicated that the quantum dots were distributed uniformly in the sol gel matrix. The thermal process slightly reduced the luminescence intensity. A red shift due to band gap energy was observed from 1.55 eV to 1.49 eV.

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Adjustment of Phase Shift of Measurement Signals in an Optical Encoder from the Parameters of an Analyzing Scale

et al. 2019

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Mathematical modeling of signal transfer process into optical system of a linear displacement encoder

Cited by 11 publications

References 12 publications

Intensity variability in stationary solutions of the Fractional Nonlinear Schrödinger Equation

Intensity variability in stationary solutions of the Fractional Nonlinear Schrödinger Equation

Room temperature photoluminescence of PbS quantum dots: Capping agent and thermal effect

Adjustment of Phase Shift of Measurement Signals in an Optical Encoder from the Parameters of an Analyzing Scale

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