scholarly journals Optimization of Disjoints Using WDM-PON in an Optical Network

2016 ◽  
Vol 07 (09) ◽  
pp. 2207-2216
Author(s):  
K. Sasi Kala Rani ◽  
A. Renuga Devi ◽  
J. Suganthi
Keyword(s):  
Optical Network ◽  
Wdm Pon

Comparative Analysis of High Speed 20/20 Gbps OTDM-PON, WDM-PON and TWDM-PON for Long-Reach NG-PON2

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Meet Kumari ◽  
Reecha Sharma ◽  
Anu Sheetal
Keyword(s):  
Wavelength Division Multiplexing ◽  
High Speed ◽  
Optical Network ◽  
Access Network ◽  
Cost Effective ◽  
Input Power ◽  
Passive Optical Network ◽  
Wavelength Division ◽  
Transmission Distance ◽  
Wdm Pon

AbstractNowadays, bandwidth demand is enormously increasing, that causes the existing passive optical network (PON) to become the future optical access network. In this paper, next generation passive optical network 2 (NG-PON2) based, optical time division multiplexing passive optical network (OTDM-PON), wavelength division multiplexing passive optical network (WDM-PON) and time & wavelength division multiplexing passive optical network (TWDM-PON) systems with 20 Gbps (8 × 2.5 Gbps) downstream and 20 Gbps (8 × 2.5 Gbps) upstream capacity for eight optical network units has been proposed. The performance has been compared by varying the input power (−6 to 27 dBm) and transmission distance (10–130 km) in terms of Q-factor and optical received power in the presence of fiber noise and non-linearities. It has been observed that TWDM-PON outperforms OTDM-PON and WDM-PON for high input power and data rate (20/20 Gbps). Also, TWDM-PON shows its superiority for long-reach transmission up to 130 km, which is a cost-effective solution for future NG-PON2 applications.

A Novel Multi-Service Passive Optical Network Based on the Wavelength-Division-Multiplexed Technology

2014 ◽  
Vol 538 ◽  
pp. 490-493 ◽  
Author(s):  
Ping Li ◽  
Zhen Ping Lan ◽  
Yu Ru Wang ◽  
Huan Lin Lv ◽  
Nian Yu Zou
Keyword(s):  
Transmission Rate ◽  
Optical Network ◽  
Passive Optical Network ◽  
Light Sources ◽  
Waveguide Grating ◽  
Wavelength Division ◽  
Wavelength Division Multiplexed ◽  
Dfb Laser ◽  
Array Waveguide Grating ◽  
Wdm Pon

The simulation diagram of WDM-PON is proposed, utilizing DFB laser diodes as light sources, array waveguide grating as multiplexer for signals’ split and amplifiers as gain generator, respectively, to realize networking for both sending and receiving units. WDM-PON system with 128 branches service signals and transmission rate of 210Gb/s is finally simulated and the system performances are analyzed and discussed.

Research on Power Optimization Based on Adaptive Passive Optical Networks

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Li Li ◽  
Li Hong-Jie
Keyword(s):  
Optical Networks ◽  
Optical Network ◽  
Access Network ◽  
Data Rate ◽  
Passive Optical Network ◽  
High Data Rate ◽  
Transmission Power ◽  
High Data ◽  
Maximum Transmission ◽  
Wdm Pon

AbstractFor the commercial wavelength division multiplexing passive optical network (WDM-PON) with standard single-mode fiber SSMF-28 and 1:64 passive fiber branching at its far end (RN) and 100 GHz C-band continuous wavelength (CW) lasers, the maximum coverage and optimal transmission power of STM-16 and STM-64 with external modulators at different speeds and wave numbers (4λ, 8λ and 16λ) are obtained, respectively. The performance parameter of the high data rate WDM-PON system is analyzed with respect to a number of channels and reach. In order to improve the network utilization and receiving efficiency, the influence of different channels and transmission distances on the performance of high data rate WDM-PON system is analyzed. Simulation analysis with Optisystem15.0. The maximum transmission power required to achieve the maximum transmission distance under the condition of nonlinear constraints is obtained. In order to save power consumption, the configuration of each multi-band PON is optimized in terms of transmission power. It is found that WDM-PON system has to compromise between aggregated data rate and system reach. Future software defined access network reconfigure the access network depending on the dynamic demand and the resources available. Hence depending on the distance between the optical line terminal (OLT) and optical network unit (ONU) guaranteed data rate can be estimated. ONU is equipped with a tunable optical filter (TOF) hence future wavelength can be reconfigured by both service provider and user. It makes it possible for software to customize optical access network.

scholarly journals Mathematical Verification for Transmission Performance of Centralized Lightwave WDM-RoF-PON with Quintuple Services Integrated in Each Wavelength Channel

2015 ◽  
Vol 2015 ◽  
pp. 1-13 ◽  
Author(s):  
Shuai Chen ◽  
Wei Nai ◽  
Fangqi Zhang ◽  
Shaoyin Wang ◽  
Decun Dong ◽  
...  
Keyword(s):  
System Design ◽  
Wavelength Division Multiplexing ◽  
Optical Network ◽  
Passive Optical Network ◽  
Transmission Performance ◽  
Modulation Formats ◽  
Wavelength Division ◽  
Wavelength Channel ◽  
The One ◽  
Wdm Pon

Wavelength-division-multiplexing passive-optical-network (WDM-PON) has been recognized as a promising solution of the “last mile” access as well as multibroadband data services access for end users, and WDM-RoF-PON, which employs radio-over-fiber (RoF) technique in WDM-PON, is even a more attractive approach for future broadband fiber and wireless access for its strong availability of centralized multiservices transmission operation and its transparency for bandwidth and signal modulation formats. As for multiservices development in WDM-RoF-PON, various system designs have been reported and verified via simulation or experiment till now, and the scheme with multiservices transmitted in each single wavelength channel is believed as the one that has the highest bandwidth efficiency; however, the corresponding mathematical verification is still hard to be found in state-of-the-art literature. In this paper, system design and data transmission performance of a quintuple services integrated WDM-RoF-PON which jointly employs carrier multiplexing and orthogonal modulation techniques, have been theoretically analyzed and verified in detail; moreover, the system design has been duplicated and verified experimentally and the theory system of such WDM-RoF-PON scheme has thus been formed.

Performance Analysis of WDM-PON System Based on Optimized Remotely Pumped Erbium-Doped Fiber Amplifier (EDFA) Parameter

2015 ◽  
Vol 36 (2) ◽  
Author(s):  
N. Ahmed ◽  
Hilal A. Fadhil ◽  
S. A. Aljunid ◽  
Md. Sharafat Ali ◽  
Matiur Rahman
Keyword(s):  
Output Power ◽  
Wavelength Division Multiplexing ◽  
Noise Figure ◽  
Optical Network ◽  
Fiber Amplifier ◽  
Passive Optical Network ◽  
Erbium Doped Fiber Amplifier ◽  
Wavelength Division ◽  
Erbium Doped ◽  
Wdm Pon

AbstractIn this paper, the performance of wavelength division multiplexing-passive optical network (WDM-PON) system using the erbium-doped fiber amplifier (EDFA) is optimized and evaluated. The optimization is analyzed by finding the EDFA length range at which the output power produced are the highest and the pump power range at which the gain flatness produced are within the effective range (0.3 dB). After the optimization process, the optimized EDFA system produces the gain of 26.6±0.292 dB, noise figure of 3.82 dB and output power of 7 dBm and the system is then implemented into WDM system. The performance of WDM system is compared against the system without EDFA in terms of bit error rate (BER). Results obtained prove that the proposed system with the EDFA consistently performs better than the conventional system.

scholarly journals Long Reach and High Capacity Hybrid Passive Optical Network

2018 ◽  
Vol 11 (3) ◽  
pp. 891
Author(s):  
Subhashini N ◽  
Brintha Therese A
Keyword(s):  
Dispersion Compensation ◽  
Optical Network ◽  
Access Network ◽  
High Capacity ◽  
Passive Optical Network ◽  
Modulation Formats ◽  
High Data ◽  
Modulation Format ◽  
Compensation Mechanisms ◽  
Wdm Pon

<p>A number of applications are growing day by day and so the traffic. The need for bandwidth is also increasing at a rapid rate. The bandwidth and speed with which data can be transferred was very less when compared to core networks. The access network which was once a bottleneck is no longer so because of use of optic fiber (FTTH networks). A number of variants of Passive Optical Network (PON) have been proposed like the WDM PON and the Hybrid PON. Hybrid PON is a combination of TDM PON and WDM PON and is advantageous over WDMPON. This paper focuses on high capacity networks that can provide high data rate and long reach in the access part of the network. NRZ modulation format is normally used for transmission.  We consider the advantages provided by the advanced modulation formats like DPSK. This modulation format is used to here and its benefits are evaluated in Hybrid PON network to increase the capacity and the reach of the network. Parameters like the BER and the Q factors are analysed using Optisystem Software. Distortion and the phenomena of dispersion can limit the performance of such a system. Hence Dispersion compensation mechanisms like the Dispersion Compensation Fiber (DCF) are used in the system to transmit data over large distance.</p>

scholarly journals Design of L-Band Multiwavelength Laser for TDM/WDM PON Application

2021 ◽  
Vol 18 (4(Suppl.)) ◽  
pp. 1365
Author(s):  
Nani Fadzlina Naim ◽  
Muhammad Amirul Hafiz Mohamed Hashim ◽  
Suzi Seroja Sarnin ◽  
Norsuzila Ya'acob ◽  
Latifah Sarah Supian
Keyword(s):  
Wavelength Division Multiplexing ◽  
Low Cost ◽  
Optical Network ◽  
Simulation Software ◽  
Passive Optical Network ◽  
Simulation Design ◽  
Wavelength Division ◽  
L Band ◽  
Multiwavelength Laser ◽  
Wdm Pon

This paper presents on the design of L-Band Multiwavelength laser for Hybrid Time Division Multiplexing/ Wavelength Division Multiplexing (TDM/WDM) Passive Optical Network (PON) application. In this design, an L-band Mulltiwavelength Laser is designed as the downstream signals for TDM/WDM PON. The downstream signals ranging from 1569.865 nm to 1581.973 nm with 100GHz spacing. The multiwavelength laser is designed using OptiSystem software and it is integrated into a TDM/WDM PON that is also designed using OptiSystem simulation software. By adapting multiwavelength fiber laser into a TDM/WDM network, a simple and low-cost downstream signal is proposed. From the simulation design, it is found that the proposed design is suitable to be used in TDM/WDM PON for up to 64 Optical Network Units (ONUs).

Broadband Optical Access using Centralized Carrier Distribution

2012 ◽  
pp. 1958-1977
Author(s):  
Chi-Wai Chow
Keyword(s):  
Optical Network ◽  
Cost Effective ◽  
Passive Optical Network ◽  
Carrier Distribution ◽  
Wavelength Division ◽  
Rayleigh Backscattering ◽  
Wavelength Division Multiplexed ◽  
Fiber To The Home ◽  
Beat Noise ◽  
Wdm Pon

Passive optical network (PON) is considered as an attractive fiber-to-the-home (FTTH) technology. Wavelength division multiplexed (WDM) PON improves the utilization of fiber bandwidth through the use of wavelength domain. A cost-effective solution in WDM PON would use the same components in each optical networking unit (ONU), which should thus be independent of the wavelength assigned by the network. Optical carriers are distributed from the head-end office to different ONUs to produce the upstream signals. Various solutions of colorless ONUs will be discussed. Although the carrier distributed WDM PONs have many attractive features, a key issue that needs to be addressed is how best to control the impairments that arise from optical beat noise induced by Rayleigh backscattering (RB). Different RB components will be analyzed and RB mitigation schemes will be presented. Finally, some novel PONs including signal remodulation PONs, long reach PONs and wireless/wired PONs will be highlighted.

Performance Enhancement in Colorless WDM–PON Using SSB-SC

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Manisha Bharti
Keyword(s):  
Rayleigh Scattering ◽  
Performance Enhancement ◽  
Optical Network ◽  
Scattering Problem ◽  
Optical Power ◽  
Passive Optical Network ◽  
Communication Process ◽  
Wavelength Division ◽  
Proposed Model ◽  
Wdm Pon

AbstractIn this manuscript, an attempt has been made to enhance the performance of colorless wavelength division multiplexed-passive optical network (WDM–PON) system using a combination of dual-drive Mach–Zehnder modulator and single sideband-suppressed carrier (SSB-SC) technique along with splicing. The proposed design makes use of SSB-SC technique for optical line terminal (OLT) as well as for optical network unit (ONU) that is generated by using dual-drive modulator which in turn reduces the expense for complete communication process. Suppressed RF signals with four channels at a bit rate of 10 Gbps for each channel are multiplexed before injecting into fiber span of 25 km at OLT side. Half of the downlink power is consumed for re-modulating the data signal at ONU side. The performance is further improved by using signal splicing method. Due to suppression in the carrier in this technique, there is no carrier Rayleigh scattering problem. The proposed model is compared with the existing one for error-free transmission of signal. The results revealed that the proposed model possess less value of bit error rate with the same value of received optical power as well as channel.

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