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Optical Communications

Blind Equalization in Optical Communications Using Independent Component Analysis

Blind Equalization in Optical Communications Using Independent Component Analysis

... coherent optical communication ...multi-span optical communications system impaired by both polarization mode dispersion (PMD) and polarization dependent loss ...

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Master Thesis OPTICAL COMMUNICATIONS USING CHAOTIC CARRIERS GENERATED BY ELECTRO-OPTICAL FEEDBACK DEVICES

Master Thesis OPTICAL COMMUNICATIONS USING CHAOTIC CARRIERS GENERATED BY ELECTRO-OPTICAL FEEDBACK DEVICES

... on optical communications involving semiconductor laser with electro-optical ...of communications needed for confi- dential data transmission required chaotic complexity to scramble the ...

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The Master in Optical Communications and Photonic Technologies at Politecnico di Torino

The Master in Optical Communications and Photonic Technologies at Politecnico di Torino

... Started in the Academic Year 2001/2002, Politecnico di Torino has been offering a Master degree specifically devoted to Optical Communications and Photonic Technologies (MOCPT, ...

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Analysis and Simulation of Link Performance for Underwater Wireless Optical Communications

Analysis and Simulation of Link Performance for Underwater Wireless Optical Communications

... wireless communications in laboratory or experimental ...an optical communication system using Ar+ laser and Photomultiplier tube (PMT) which can achieve 50Mbits/s data transmission over 10m ...underwater ...

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High Power InP MOPA for LiDAR and Free Space Optical communications

High Power InP MOPA for LiDAR and Free Space Optical communications

... satellite-to-ground communications have been dependent up to now on RF communications; these latter, due to the weight and dimensions of devices, together with their power consumption, are now too demanding ...

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Dispersion Flattened Optical Fiber Design for Large Bandwidth and High-Speed Optical Communications Using Optimization Technique

Dispersion Flattened Optical Fiber Design for Large Bandwidth and High-Speed Optical Communications Using Optimization Technique

... bandwidth optical communications are basic demand in science and ...processing. Optical fiber based communication is the excellent alternative for these purposes which needs low dispersion as well as ...

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Improvement of Optical Properties in Hexagonal Index-guiding Photonic Crystal Fiber for Optical Communications

Improvement of Optical Properties in Hexagonal Index-guiding Photonic Crystal Fiber for Optical Communications

... in optical communication systems. Optical fibers can also be employed in such ...Besides optical fibers, photonic crys- tal fibers are also highly suitable transmission media for optical ...

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Comparison of wavelength propagation for free space optical
communications

Comparison of wavelength propagation for free space optical communications

... This paper presents the effect of atmospheric attenuation during severe hazy days for Free Space Optical Communications. The usage of Free Space Optical Communications is still rare in ...

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Introduction to the Optical Communications by Simulating an Optical High Debit Transmission Chain Using OptiSystem with Comparison of Optical Windows

Introduction to the Optical Communications by Simulating an Optical High Debit Transmission Chain Using OptiSystem with Comparison of Optical Windows

... Gradually, optical communication systems began to plot their development passing through several generations (4 ...of optical communications in the future ...

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Photonic machine learning implementation for signal recovery in optical communications

Photonic machine learning implementation for signal recovery in optical communications

... launched optical power in standard single mode fibres (SSMF) should be always restricted to moderate levels (around or below 1 ...launched optical power into the ...

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Optical Communications Systems

Optical Communications Systems

... Polarization -dependent loss (PDL): - dependent loss (PDL): if the loss of the switch is not equal for both states of polarization of the optical signal, the switch is said to have polarization-dependent loss. It ...

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Signal Processing in High-Speed Optical Communications and Impact on Electronic Subsystems

Signal Processing in High-Speed Optical Communications and Impact on Electronic Subsystems

... Electronic signal processing is currently introduced in various subsystems of modern optical high speed transceivers. Traditionally electronic processing was basically limited to tasks like MUX/DEMUX, clock and ...

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The Effects of Power Control on Free Space Optical Communications during Snowfall and Rainfall

The Effects of Power Control on Free Space Optical Communications during Snowfall and Rainfall

... Specific attenuation due to precipitation is observed in the optical and infra- red ranges. It can be referred as rain attenuation and measured in dB/km. In FSO system, rain attenuation is particularly severe and ...

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Light emitting diodes and lasers for high-speed underwater optical communications

Light emitting diodes and lasers for high-speed underwater optical communications

... 12 Regarding the distances that could be supported with the current configuration outside of the water tank, in Figure 3.9 an estimated BER versus transmission distance (the distance between the 𝑇 𝑥 and 𝑅 𝑥 ) was plotted ...

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Differential Amplitude Pulse Position Modulation for Indoor Wireless Optical Communications

Differential Amplitude Pulse Position Modulation for Indoor Wireless Optical Communications

... y(t) = Rh(t) ∗ x(t) + n(t), (1) where ∗ denotes convolution, R is the photodetector respon- sivity (in A/W), and h(t) is the channel impulse response. In an optical wireless link, the noise n(t), which is usually ...

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Applications of highly nonlinear holey fibres in optical communications

Applications of highly nonlinear holey fibres in optical communications

... Optical code division multiple access (OCDMA) is the optical analog of code division multiple access (CDMA) in mobile communications. It is a technique that allows mul- tiple users of a network to ...

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Temporal soliton: generation and applications in optical communications

Temporal soliton: generation and applications in optical communications

... Optical storage devices offer significant advantages over other high-capacity storage devices, such as tape and microfilm, with faster access times and a hierarchical type file organization [10]. The promising ...

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Spectral Efficient Coding Schemes in Optical Communications

Spectral Efficient Coding Schemes in Optical Communications

... in optical transmissions has recently attracted much attention, aiming to satisfy the ever increasing demand for high data rates in optical fiber ...for optical single carrier (SC) and optical ...

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Space Time Codes for Wireless Optical Communications

Space Time Codes for Wireless Optical Communications

... Jeffrey H. Shapiro received the S.B., S.M., E.E., and Ph.D. degrees in Electrical Engi- neering from the Massachusetts Institute of Technology in 1967, 1968, 1969, and 1970, respectively. As a graduate student he was a ...

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New generation of devices for all-optical communications

New generation of devices for all-optical communications

... Nonlinear Waveguide (NLWG) Switch. Record breaking optical demultiplexing has recently been reported by a group at NEC Research working on a device known as a nonlinear waveguide (NLWG) switch. The group achieved ...

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