scholarly journals Estimation of BER Bit Error Rate Using Digital Smoothing Filters

2021 ◽  
Author(s):  
Jakub Peksinski ◽  
Grzegorz Zeglinski ◽  
Grzegorz Mikolajczak ◽  
Eugeniusz Kornatowski
Keyword(s):  
Wavelength Division Multiplexing ◽  
Measurement Procedure ◽  
Eye Diagram ◽  
Wavelength Division ◽  
Fibre Transmission ◽  
Quality Of Transmission ◽  
Optical Fibre Transmission ◽  
Time Division ◽  
Time Systems

In the article, the authors present a new method of numerical determination of Q and BER parameters based on which the quality of transmission in optical fibre transmission systems is determined. The proposed method is based on the use of digital smoothing filters algorithms and does not require the knowledge of the so-called “eye diagram”, which greatly simplifies the entire measurement procedure. This method can be implemented in a simple manner in real-time systems, and in particular it is crucial for ICT systems and networks with a high bit rate of more than 10 Gbps and 40 Gbps and systems with time division or wavelength division multiplexing of 100 GBE and 400 GBE.

An Improved Hybrid WDM/TDM PON Model with Enhanced Performance Using Different Modulation Formats of WDM Transmitter

2018 ◽  
Vol 0 (0) ◽  
Author(s):  
Anil Kumar ◽  
Rajneesh Randhawa
Keyword(s):  
Wavelength Division Multiplexing ◽  
Optical Network ◽  
Passive Optical Network ◽  
Modulation Formats ◽  
Eye Diagram ◽  
Fiber Networks ◽  
Wavelength Division ◽  
Optical Fiber Networks ◽  
Proposed Model ◽  
Time Division

AbstractIn this paper, we have proposed an improved hybrid passive optical network model using wavelength division multiplexing (WDM) and time division multiplexing (TDM) with 96 users in the bidirectional optical fiber networks. The performance is evaluated based on different distances and modulation formats with the help of Q factor, BER and Eye diagram. In the proposed model, the data is successfully transmitted up-to a distance of 96 km with a data rate of 10 Gbits/sec. Comparative analysis of proposed models with respect to other four models are hence put forth.

Study the Performance of Various Optical Amplifiers for 80 Channels WDM System Using Attenuator

2018 ◽  
Vol 0 (0) ◽  
Author(s):  
◽  
Chakresh Kumar
Keyword(s):  
Wavelength Division Multiplexing ◽  
Semiconductor Optical Amplifier ◽  
Optical Amplifiers ◽  
Optical Amplifier ◽  
Data Rate ◽  
Q Factor ◽  
Eye Diagram ◽  
Wavelength Division ◽  
Transmission Distance ◽  
Erbium Doped

AbstractIn this paper we have study the performance of different optical amplifiers (Erbium doped amplifier (EDFA), RAMAN amplifier, and semiconductor optical amplifier (SOA)) for 80 channels wavelength division multiplexing (WDM) system with the data rate at 10 Gbps data rate for the transmission distance of 280 km After getting the results of these amplifiers the performance of these has to be compared The Q-factor values achieved better in EDFA as compared to SOA and RAMAN. While the BER getting good in SOA as compared with other amplifiers but in EDFA after 200 km it goes saturated, the Power achieved at the power estimator is getting better in EDFA optical amplifier while in other amplifier it achieved negative. At the end it is also study the Power with frequency in THz and the Eye Diagram of such amplifiers results.

Performance Optimization of 45-Channel Superdense Wavelength-Division-Multiplexed (SDWDM) Optical Add–Drop Multiplexer (OADM) Ring Network

2015 ◽  
Vol 36 (2) ◽  
Author(s):  
Vikrant Sharma ◽  
Anurag Sharma ◽  
Dalvir Kaur
Keyword(s):  
Wavelength Division Multiplexing ◽  
Performance Optimization ◽  
High Speed ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Ring Network ◽  
Channel Spacing ◽  
Modulation Formats ◽  
Eye Diagram ◽  
Wavelength Division

AbstractIn this paper, performance analysis of high-speed superdense wavelength-division-multiplexing (SDWDM) optical add–drop multiplexer (OADM) optical ring network for 6 nodes, 45 wavelengths having channel spacing of 0.2 nm on 300 km unidirectional nonlinear single-mode fiber ring of 10 Gbit/s has been reported. The performance optimization of the system by comparing different modulation formats has been reported on the basis of eye diagram and bit error rate (BER). It has been reported that CSRZ modulation format can achieve BER as better as e-24, which gives best performance. This paper also presents a study of performance degradation caused by the crosstalk and the effect of channel spacing on SWDM system.

scholarly journals OPTICAL ADD DROP MULTIPLEXERS (OADMS) IN UW-WDM OPTICAL PASSIVE COMMUNICATION NETWORKS

2010 ◽  
pp. 152-164
Author(s):  
Abd El-Naser A. Mohammed ◽  
Ahmed Nabih Zaki Rashed ◽  
Mahmoud M.A. Eid
Keyword(s):  
Optical Networks ◽  
Communication Networks ◽  
Wavelength Division Multiplexing ◽  
Bit Rate ◽  
Wavelength Division ◽  
Major Interest ◽  
Wide Range ◽  
Soliton Transmission ◽  
Time Division ◽  
Maximum Transmission

In the present paper, we have been modeled numerically and parametrically the high and best performance functions of optical add drop multiplexers (OADMs) for ultra wide wavelength division multiplexing technique with ultra wide space division multiplexing technique in advanced optical communication networks and photonic networking over the assumed set of parameters. Moreover, we have analyzed and investigated the maximum time division multiplexing (MTDM) and soliton transmission techniques to be processed to handle bit rate either per link or per channel for cables of multi-links (20-120 links/core). Where maximum number of transmitted channels in the range of 1000-4800 channels are processed to handle the product of bit rate either per channel or per link for cables of multilinks of silica cable core fabrication material. The MTDM or soliton transmission bit rates either per link or per channel are also treated over wide range of the affecting parameters under the ambient temperature variations. Also, the performance characteristics of the OADMs are taken as the major interest in optical networks to handle maximum transmission bit rates for the supported subscribers.

scholarly journals Characterization and Application of Solitons in a High Nonlinearity Optical Link with Dense Wavelength Division Multiplexing (DWDM) and Ultra-Dense Wavelength Division Multiplexing (UDWDM) Technics

2021 ◽  
pp. 92-102
Author(s):  
Aristide Mankiti Fati ◽  
Rostand Davy Martialy Loembe Souamy ◽  
Fraidy Ghislain Bouesse ◽  
. Nzonzolo ◽  
André Pasi Bengi Massata ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Wavelength Division Multiplexing ◽  
High Speed ◽  
Optical Solitons ◽  
Dense Wavelength Division Multiplexing ◽  
Eye Diagram ◽  
Wavelength Division ◽  
Optical Time Domain Reflectometer ◽  
Nonlinear Character ◽  
Using Data

The constantly growing needs in terms of speed and bandwidth, especially all services using data has become greedy. Today optical fiber is the medium of choice for many advantages over others channels. although the optical fiber has taken the label of transmission channels, we won’t be able to do without its nonlinear character and dispersions, which are part of the major problems during optical transmission. In this article, we are presenting the use of optical solitons in the fiber optic link, with a particular way; we have considered two kind of links, the underground one and the overhead one, in the first link, we have applied optical soliton in order to just take into account the optical Kerr effect. And for the overhead link, we can transmit for short distance by using the return to zero modulation’s format and the use of optical Erbium Doped Fiber Amplifiers (EDFA). The solitons which are the impulses, capable of propagating in the nonlinear optical fiber and dispersive without any distortion; to justify our hypothesis, we compare a dense wavelength division multiplexing (DWDM) without soliton and the dense wavelength division multiplexing with solitons; we notice that, the link with soliton is better than the first because the pulse keeps its shape from the source up to the destination, its eye diagram is opened which means there is no much noises. After the simulations in Matlab and optisystem software, we went to Congo telecom, to do our test with the optical time-domain reflectometer (OTDR), for both installations. From that study while transmitting over 100km it is better to use optical solitons with the high speed.

Compact low-noise pulse generating lasers with repetition rates of 10 to 50 GHz

2005 ◽  
Vol 15 (03) ◽  
pp. 497-512 ◽  
Author(s):  
G. J. Spühler ◽  
L. Krainer ◽  
S. C. Zeller ◽  
Ch. Erny ◽  
R. Paschotta ◽  
...  
Keyword(s):  
Wavelength Division Multiplexing ◽  
Time Domain ◽  
Fundamental Mode ◽  
Low Noise ◽  
Noise Pulse ◽  
Wavelength Division ◽  
Optical Time Division Multiplexing ◽  
Optical Time ◽  
The Time Domain ◽  
Time Division

We review the main results obtained with our recently introduced passively fundamental mode-locked Er : Yb :glass lasers mainly in the context of telecom applications, and we discuss their key enablers. Specifically, we focus on the aspects of the lasers for application in the time-domain for optical time-division multiplexing and in the wavelength domain for dense wavelength-division-multiplexing.

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