Journal ArticleDOI
Spectrum slicing WDM for FSO communication systems under the heavy rain weather
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TLDR
The proposed SS-WDM scheme can improve the FSO communication system performance compared to WDM-FSO scheme, and its adaptive and scalable network architecture support high bandwidth and wide coverage area over the heavy rain weather, without power penalty.About:
This article is published in Optics Communications.The article was published on 2017-03-15. It has received 63 citations till now. The article focuses on the topics: Bit error rate & Communications system.read more
Citations
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Journal ArticleDOI
A full-duplex optical fiber/wireless coherent communication system with digital signal processing at the receiver
Dhiman Kakati,Subhash C. Arya +1 more
TL;DR: In this article, a full-duplex, 120 Gbps optical fiber/wireless system is presented for high-speed and multicasting communication link, both wired and wireless systems use Dual Polarization 16 Quadrature Amplitude Modulation (DP-16-QAM) with homodyne detection.
Journal ArticleDOI
Performance Evaluation of Different Optical Amplifiers in Spectrum Sliced Free Space Optical Link
Aditi Thakur,Shaina Nagpal +1 more
TL;DR: In this article, a spectrum sliced wavelength division multiplexed free space optics (FSO) system was proposed to make system bandwidth efficient, frequency spacing of 75 GHz is taken among the WDM channels, and three optical amplifiers are scrutinized such as erbium-doped fiber amplifier (EDFA), semiconductor optical amplifier (SOA), and Raman amplifier in terms of Q-factor and bit error rate (BER).
Journal ArticleDOI
Performance enhancement of high-capacity coherent DWDM free-space optical communication link using digital signal processing
TL;DR: It is observed that when link is subjected to strong turbulence along with adverse weather conditions, the DSP-aided coherent DWDM-FSO receiver achieves target bit error rate (BER) of 10−4 at signal-to-noise ratio (SNR) of 36.4 dB.
Proceedings ArticleDOI
Performance Evaluation of Free Space Optical (FSO) Communication Link: Effects of Rain, Snow and Fog
TL;DR: The effects of rain, snow and fog on the performance of FSO link has been analyzed in terms of attenuation coefficient along with the study of turbulent nature of free space optical communication link employing Gamma-Gamma Turbulence Model.
Journal ArticleDOI
Range detection assessment of photonic radar under adverse weather perceptions
Vishal Sharma,Sergey Sergeyev +1 more
TL;DR: How the weak-to-strong states of atmospheric fluctuations affect the demonstrated photonic radar and which detection strategy, either coherent or non-coherent, should be adopted to attain a prolonged target-range in the presence of harsh weather conditions are determined.
References
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Journal ArticleDOI
The aR b relation in the calculation of rain attenuation
R. Olsen,D. Rogers,D. Hodge +2 more
TL;DR: In this paper, the empirical relation A = aR^{b} between the specific attenuation A and the rain rate R is used in the calculation of rain attenuation statistics.
Journal ArticleDOI
1.28 terabit/s (32x40 Gbit/s) wdm transmission system for free space optical communications
Ernesto Ciaramella,Y. Arimoto,Giampiero Contestabile,Marco Presi,Antonio D'Errico,V. Guarino,M. Matsumoto +6 more
TL;DR: A novel free space optical (FSO) system that represents a significant breakthrough in the area of FSO communications is reviewed, which is tested in a double-pass FSO link between two buildings in Pisa, Italy.
Journal ArticleDOI
Transmission performance of high bit rate spectrum-sliced WDM systems
G.J. Pendock,David D. Sampson +1 more
TL;DR: In this article, the authors evaluate the tradeoff in optical slice linewidth between signal-to-excess optical noise ratio and dispersion penalty in spectrum-sliced WDM systems and determine the channel slicewidth that minimizes transmission penalty.
Journal ArticleDOI
Suppression of Turbulence-Induced Scintillation in Free-Space Optical Communication Systems Using Saturated Optical Amplifiers
TL;DR: In this paper, a laboratory-simulated free-space optical link under various turbulence levels is implemented to propose and experimentally demonstrate the use of saturated optical amplifiers as a simple and efficient approach for suppression of scintillation due to atmospheric turbulence.