Journal ArticleDOI
Distributed Feedback Laser (DFB) for Signal Power Amplitude Level Improvement in Long Spectral Band
Debabrata Samanta,M. Sivaram,Ahmed Nabih Zaki Rashed,C. S. Boopathi,Iraj Sadegh Amiri,P. P. Yupapin +5 more
TLDR
In this paper, a distributed feedback laser for signal power amplitude level improvement in the long spectral band of 1550-nm wavelength within supporting pumped wavelength of 1480-nm was presented, where the bias and modulation peak currents were varied to test the signal power level, peak signal amplitude variations after the fiber-optic channel and light detectors.Abstract:
This study outlines the distributed feedback laser for signal power amplitude level improvement in the long spectral band of 1550 nm wavelength within supporting pumped wavelength of 1480 nm. The bias and modulation peak currents based distributed feedback laser are varied in order to test the signal power level, peak signal amplitude variations after the fiber-optic channel and light detectors. The signal power level, peak signal amplitude is measured against spectral wavelength and time bit period variations. The study emphasis the signal power level, peak signal amplitude are enhanced for the best selection values of both a bias current at 45 mA and modulation peak current at 0.5 mA.read more
Citations
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Journal ArticleDOI
High-speed signal processing and wide band optical semiconductor amplifier in the optical communication systems
TL;DR: In this article, the effects of noise on AlGaAs/GaAs SOA transmission performance were investigated through the measurement of output power, optical gain, the optical signal-to-noise ratio, and noise figure.
Journal ArticleDOI
Beam divergence and operating wavelength bands effects on free space optics communication channels in local access networks
Aadel M. Alatwi,Ahmed Nabih Zaki Rashed,Ahm Shahriar Parvez,Ahm Shahriar Parvez,Bikash Kumar Paul,Bikash Kumar Paul,Kawsar Ahmed +6 more
TL;DR: In this paper, the divergence of beam and operating wavelength bands effects on free-space optics communication channels in local access networks were discussed. And the authors presented the optimum operating conditions for upgrading network operation efficiency.
Journal ArticleDOI
Performance enhancement of transceiver system based inter satellite optical wireless channel (IS-OWC) for ultra long distances
Mahmoud M. A. Eid,Fatma Mohammed Aref Mahmoud Houssien,Ahmed Nabih Zaki Rashed,Abd El-Naser A. Mohammed +3 more
TL;DR: In this paper, the performance enhancement of transceiver system based (IS-OWC) link by using both vertical cavity surface emitting laser diode (VCSEL) and continuous wave (CW) laser sources is clarified.
Journal ArticleDOI
Laser measured rate equations with various transmission coders for optimum of data transmission error rates
TL;DR: This study has emphasized the important role of pulse position modulation transmission coders, which exhibit superior performance in max.
Journal ArticleDOI
Simulation study of signal gain optimization based on hybrid composition techniques for high-speed optically dense multiplexed systems
TL;DR: In this article, the authors used hybrid optical fiber amplifiers and filter techniques to enhance signal gain and achieved a 13Gb/s transmission speed per 300 channel dense wavelength division multiplexing system.
References
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Journal ArticleDOI
Temperature effects on characteristics and performance of near-infrared wide bandwidth for different avalanche photodiodes structures
Iraj Sadegh Amiri,Fatma Mohammed Aref Mahmoud Houssien,Ahmed Nabih Zaki Rashed,Abd El-Naser A. Mohammed +3 more
TL;DR: In this paper, the influence of thermal and spectral variations on various structures of avalanche photodiodes (APDs) have been deeply investigated and the characteristics and performance of Silicon (Si), Gallium Arsenide (GaAs), and Indium GalliumArsenide(InGaAs) APD structures have been evaluated under effects of different temperature degrees.
Journal ArticleDOI
The switching of optoelectronics to full optical computing operations based on nonlinear metamaterials
Ahmed Nabih Zaki Rashed,Abd El-Naser A. Mohammed,Walid Fawzy Zaky,Iraj Sadegh Amiri,P. P. Yupapin +4 more
TL;DR: The optical oscillator was introduced using an electro-optical modulator and, in this study, the oscillator design has no electro- optical elements, also the optical trap here works as an optical memory of binary data.
Journal ArticleDOI
Numerical investigation of V shaped three elements resonator for optical closed loop system
TL;DR: In this article, the authors have outlined numerical investigation of V shaped three element resonator and the stability parameter is measured against back mirror curvature radius, back mirror phase angle, focusing length, focusing mirror phase angles, folding range in both S plane and T plane.
Journal ArticleDOI
Simulative Study of Simple Ring Resonator Based Brewster Plate for Power System operation Stability
TL;DR: In this paper, a simulative study of simple ring resonator based Brewster plate in the air is presented, and the results are achieved with the variations of space length, curvature radius and phase angle of the spherical mirror.
Journal ArticleDOI
Ultra high transmission capacity based on optical first order soliton propagation systems
S. Praveen Chakkravarthy,V. Arthi,S. Karthikumar,Ahmed Nabih Zaki Rashed,P. P. Yupapin,Iraj Sadegh Amiri +5 more
TL;DR: In this paper, the first order optical soliton propagation system for ultra-high transmission distance that reaches up to 20,000 Km with transmission data rates of 80Gb/s and its corresponding maximum Q-factor and Soliton peak power was presented.