Optical signal processing using four wave mixing in highly nonlinear silicon nano-wire

Ahmed, Jameel; Hussain, Ashiq; Adeel, Freeha; Siyal, Mohammed Yakoob; Yu, Chongxiu

doi:10.1016/j.ijleo.2012.10.030

Cited by 3 publications

(3 citation statements)

References 25 publications

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“…The model [9] for the 1000 km wavelength-division multiplexing system with non-RZ and RZ modulation formats reveals a relatively low quality of data transmission and a significantly low signal power. The work [13] has presented a DWDM design with 25 dB reduction of the FWM power, which has limited value in choosing modulation formats with optical filters. The author [14] has proposed a DWDM design characterized by low distortion, high quality factor and low BER.…”

Section: Related Workmentioning

confidence: 99%

“…The influence of FWM in many waveguide devices is observed while varying pump power and detuning light wavelength [12]. A reduction of FWM achieved using different modulation formats in long-haul DWDM transmission systems has also been discussed and the system performance has been evaluated basing on the OSNR, the Q-factor and the BER [13]. A turn-to-zero (RZ) modulation format has proven to be less affected by the nonlinearities.…”

Section: Introductionmentioning

confidence: 99%

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Supervised regression modelling for mitigation of four-wave mixing in dense wavelength-division multiplexing systems

Venkatesan¹,

Chandrasekar²,

Ramesh³

2021

Ukr. J. Phys. Opt.

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A recent global crisis associated with COVID-19 has encouraged millions of people to work from home, thus causing a drastic increase in overall network traffic, data-rate requirements and end network capabilities. This has also produced more noise, cross-talk and undesirable optical-fibre nonlinearities, especially a fourwave mixing (FWM) effect that deteriorates performance of dense wavelengthdivision multiplexing (DWDM) systems. A presence of FWM in the DWDM systems imposes increasing complexity and latency of networks, and decreases their spectral efficiency. In its turn, this degrades efficient utilization of optical bandwidth. To mitigate the above problems, we suggest a supervised regression modelling (SRM). A relevant SRM-DWDM approach performs self-parametric optimization of the DWDM systems with machine-learning techniques and finds real trade-offs among various factors that affect the FWM. Our model reduces complexity of modelling and computational time, resulting in accurate and reliable prediction of parameter values. We also evaluate the performance of our SRM-DWDM technique by comparing its data with the iterative results obtained for different parameters (e.g., output signal-to-noise ratio, Q-factor, signal power and noise power). Finally, we specify the procedures necessary for global optimization of DWDM systems.

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Section: Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Supervised regression modelling for mitigation of four-wave mixing in dense wavelength-division multiplexing systems

Venkatesan¹,

Chandrasekar²,

Ramesh³

2021

Ukr. J. Phys. Opt.

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“…These effects in photorefractive media have lead to the discovery, characterization and applications [1][2][3][4] to devices, such as, amplitude modulators, 5 optical tunable filters, 6 and beam scanners 7 etc. These devices perform important tasks in several optical applications, e.g., optical switching, 8,9 optical computing, 10,11 optical signal processing, 12 and beam steering. 13 The phenomenon of two-beam coupling in photorefractive crystals has been studied by several authors theoretically and experimentally, [14][15][16][17] to obtain ring-cavity oscillation in the basic configuration of single unidirectional photorefractive ring resonator (SUPRR) [18][19][20][21][22] and coupled unidirectional photorefractive ring resonator (CUPRR).…”

Section: Introductionmentioning

confidence: 99%

Study of oscillation performance characteristics of unidirectional photorefractive ring resonators: Cavity detuning dependence

2015

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Single unidirectional photorefractive ring resonator (SUPRR) and coupled unidirectional photorefractive ring resonator (CUPRR) were considered with BaTiO3 and LiNbO3 crystals as inter-cavity photorefractive media. The relative oscillation intensity and oscillation frequency shift of two SUPRRs with BaTiO3 and LiNbO3 crystals in their cavities, and four CUPRRs with BaTiO3-BaTiO3, LiNbO3-LiNbO3, BaTiO3-LiNbO3 and LiNbO3-BaTiO3 combinations were analysed relative to cavity detuning parameters and compared the oscillation performance of SUPRR with that of CUPRR. In SUPRR, maximum value of relative oscillation intensity is found for BaTiO3 as compared to that of LiNbO3 for zero cavity detuning. In CUPRR, the oscillation intensity in secondary cavity increases with increasing cavities detuning whereas in primary cavity it decreases with increasing cavities detuning. Major finding of this study is that the BaTiO3-LiNbO3 combination of the coupled system provides the highest relative oscillation intensity.

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Mid-infrared broadband all-optical wavelength converter in Ge20Sb15Se65 photonic crystal fiber with flattened dispersion

Zou

Chen

Pan

et al. 2021

Optik

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Optical signal processing using four wave mixing in highly nonlinear silicon nano-wire

Cited by 3 publications

References 25 publications

Supervised regression modelling for mitigation of four-wave mixing in dense wavelength-division multiplexing systems

Supervised regression modelling for mitigation of four-wave mixing in dense wavelength-division multiplexing systems

Study of oscillation performance characteristics of unidirectional photorefractive ring resonators: Cavity detuning dependence

Mid-infrared broadband all-optical wavelength converter in Ge20Sb15Se65 photonic crystal fiber with flattened dispersion

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