10 Gbps optical line using EDFA for long distance lines

Ivaniga, Petr; Ivaniga, Tomáš

doi:10.15199/48.2017.03.45

Cited by 17 publications

(13 citation statements)

References 8 publications

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“…The second method is the decrease of gaping between channels, e.g. 100 GHz, 50 GHz, 25 GHz to 12.5 GHz [27]. The last solution would be to increase the data speed of individual channels.…”

Section: Fusion Of Cwdm/dwdmmentioning

confidence: 99%

“…The testing identifies whether the optical network is correctly connected and whether it is sufficient for a reliable and faultless transfer of data. For telecommunication data transfers the BER value represents the percentage of faulty bits to its total number of received bits at the input of the receiver of that transfer route [27]. In brief, BER is the figure regarding how the data is needed to be resent due to possible faults occurring.…”

Section: Bit Error Ratementioning

confidence: 99%

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Untitled

2019

JESTR

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The continual increase in transfer capacity and speed leads to the continual improvement of fully optical transfer communication systems. The aim of this article is to present the creation of an 8-channel CWDM (Coarse Wavelength Division Multiplex) system (gap spacing of 20 nm), where 10 channels, with gaps of 2 nm are gradually inserted between wavelengths of 1530 nm to 1550 nm according to the ITU-T G.694.1 recommendation. This system is evaluated using the BER (Bit Error Rate) of a specific channel operating on a wavelength of 1540 nm. In the topology we used an EDFA (Erbium Doped Fibre Amplifier) placed In-Line at 90 km with a bit speed of 10 Gbit.s-1. Consequently, in order to overcome the problem of distance, an optical loop with an appropriate EDFA configuration was created. This article presents the basic mathematical description of bit error rate and also deals with the possibility of the incorporation of CWDM and DWDM systems into existing infrastructures.

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“…The second method is the decrease of gaping between channels, e.g. 100 GHz, 50 GHz, 25 GHz to 12.5 GHz [27]. The last solution would be to increase the data speed of individual channels.…”

Section: Fusion Of Cwdm/dwdmmentioning

confidence: 99%

Section: Bit Error Ratementioning

confidence: 99%

Untitled

2019

JESTR

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“…in which θ IN and θ OUT represent the angles between the middle axis and the input (the output respectively) waveguides, m stands for the order mode of waveguide for the signal wavelength i and c is the central wavelength. The optical grade angle is marked as d, n s and n wg are the effective refractive indexes [10,13]. This equation also allows chromatic material dispersion.…”

Section: Mathematical Description Of Awgmentioning

confidence: 99%

The Influence of FWM with AWG Multiplexor in DWDM System

Ivaniga

Turán

et al. 2018

ELECTROTECHNICAL REVIEW

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This article focuses on the creation of the sixteen-channel DWDM (Dense Wavelength Division Multiplex) system according to the recommendation ITU-T G.694.1. Currently it is not possible to form a fully optical communication system without testing all non-linear effects possibly influencing its performance. The trend in high-speed transfer communication systems is using the multiplex, so we focused on the AWG (Arrayed Waveguide Grating) multiplexor/demultiplexor. For the purpose of this article we have created a DWDM system with the speed of 10Gbps where we compared two line codes, namely NRZ (Non Return Zero) and BRZ (Bipolar Return Zero) for the channel gaps of 12.5GHz and 100GHz. The individual codes were created in the "Matlab" programme and consequently implemented into the environment generated by "OptSim" by the RSoft company. The resulting signal was evaluated based on BER (Bit Error Rate) and the connected Q-factor for the channel No.3. The created system shows the influence of the system by the non-linear effect FWM (Four Wave Mixing) during the compression between the channels. Streszczenie. Niniejszy artykuł ma na celu utworzenie szesnastowego kanału DWDM (Dense Wavelength Division Multiplex) zgodnie z normą ITU-T G.694.1. Obecnie nie jest możliwe wdrożenie w pełni optycznego systemu komunikacyjnego bez testowania wszystkich zjawisk nieliniowych, które mogą działać w danym systemie w czasie rzeczywistym. Ponieważ w systemach transmisji danych o dużej szybkości wykorzystuje się multipleks, skupiliśmy się na multiplekserze i demultiplekserze AWG (Arrayed Waveguide Grating). W artykule zbadano system DWDM o szybkości 10Gbps, porównujący dwa kody linii NRZ (Non Return Zero) i BRZ (Bipolar Return Zero) dla kanałów 12.5 GHz i 100 GHz. Poszczególne kody zostały utworzone w programie Matlab, a następnie zostały wdrożone w środowisku OptSim przez firmę RSoft. Powstały system jest obliczany na podstawie szybkości błędu bitowego BER i związanego z tym współczynnika Q dla określonego kanału nr 3. Utworzony system pokazuje wpływ na system poprzez efekt nieliniowy FWM (Four Wave Mixing) podczas kompresji między kanałami. (Wpływ FWM z multiplekserem AWG w systemie DWDM).

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“…Variables R A and R B in equations (1), (2) represent perpendicular planes of opened waveguide and plane of horn [9][10][11][12][13][14].…”

Section: Design Of Horn Antennamentioning

confidence: 99%

Design of Pyramidal Horn Antenna for 2.45GHz in FEKO for Application in Experimental FSO/RF Hybrid System

Marton

Ovseník

Turán

et al. 2018

Carpathian Journal of Electronic and Computer Engineering

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Communication technologies are growing for day to day because demand on data sharing is unstoppable. Users require availability of approach to network at all time. Implementation of smart technologies allows communication of all type of devices. Capacity of data flow have to grow. Video formats HD or 4K require transmit on high data speed. Based on the demands many types of different communication systems which are suitable for these speeds were designed. One of these systems is FSO (Free Space Optics). FSO system is based on transmission of optical beams which carry the information. This system allow high data speed comparable with standard optical fiber in range to 10km. One of drawbacks of this system is LOS (Light of Sight) between communication points. The other drawback is sensitivity to weather changes. Optical beams interfere with water particles and cause attenuation on transmission path. The solution is in implementation using hybrid FSO/RF system which combines optical communication system with RF (Radio Frequency) backup link. We realized FSO communication link on Technical University of Košice. Our research is focused on design of appropriate type of antenna for our RF backup link. Our results in this area were published.

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10 Gbps optical line using EDFA for long distance lines

Cited by 17 publications

References 8 publications

Untitled

Untitled

The Influence of FWM with AWG Multiplexor in DWDM System

Design of Pyramidal Horn Antenna for 2.45GHz in FEKO for Application in Experimental FSO/RF Hybrid System

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