10-Gb/s Operation of RSOA for WDM PON Using Return-to-Zero Modulation Format

2012 ◽  
Author(s):  
K. Y. Cho ◽  
Y. C. Chung
Keyword(s):  
Modulation Format ◽  
Wdm Pon

Analysis the Speciality of Modulation Format in WDM-PON System

2011 ◽  
Vol 6 (12) ◽  
Author(s):  
Li Li ◽  
Jijun Zhang ◽  
Aihan Yin
Keyword(s):  
Modulation Format ◽  
Wdm Pon

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>

Performance Enhancement of Multichannel Gigabit Rate Bidirectional WDM-PON Using RSOA and Optimized Modulation Format

2016 ◽  
Vol 37 (3) ◽  
Author(s):  
Sooraj Parkash ◽  
Anurag Sharma ◽  
Harsukhpreet Singh
Keyword(s):  
Wavelength Division Multiplexing ◽  
Performance Enhancement ◽  
Dispersion Compensation ◽  
Optical Network ◽  
Optical Amplifier ◽  
Data Rate ◽  
Passive Optical Network ◽  
Optical Source ◽  
Modulation Format ◽  
Wdm Pon

AbstractThis paper successfully demonstrates bidirectional wavelength division multiplexing passive optical network (WDM-PON) system for 32 channels, 0.8 nm (100 GHz) channels spacing with 3.5 GHz filter bandwidth. The system delivers 160 GB/s data rate and 80 GB/s data rate in downstream and upstream, respectively. The optical source for downstream data and upstream data is mode-locked laser at central office and reflective semiconductor optical amplifier (RSOA) at optical network unit. The maximum reach of designed system is 50 km without using any dispersion compensation scheme. This paper comprises comparison of series of modulation format in downstream and upstream such as SOLITON, NRZ, RZ, MANCHESTER, CSRZ and CRZ-DPSK and optimization of the performance of designed system. It has been observed that CRZ-DPSK/NRZ gives best performance in downstream and upstream transmission for designed system. The simulation work report of minimum BER is e

scholarly journals Performance of Carrier- Suppressed Return-to-Zero(CSRZ), Duo binary Return-to-Zero(DRZ) and Modified Duo binary Return-to-Zero(MDRZ) Modulation Methods in WDM-PON Systems

2020 ◽  
Vol 10 (1) ◽  
pp. 22-25
Keyword(s):  
Optical Fiber ◽  
Fiber System ◽  
Modulation Formats ◽  
Modulation Format ◽  
Modulation Techniques ◽  
Fiber Optic Technology ◽  
Modulation Methods ◽  
The Right ◽  
Right Order ◽  
Wdm Pon

In this paper the different modulation techniques used in fiber optic technology are compared to check which one has the better bit error rate (BER). There are a number of different modulation techniques used in WDN-PON systems but here the comparison is made among carrier-suppressed return-to-zero (CSRZ), duobinary return-to-zero (DRZ) and modified duobinary return-to-zero (MDRZ) modulation. The comparison to determine which is better is made my performing simulations in OptiSystem version 17 software. OptiSystem 17 is the current version of the software at the time the simulations were being carried out. In the OptiSystem software an optical fiber system is simulated from transmitter all the way to receiver. In the experiment when checking the performance of the different modulation formats, the optical fiber and the receiver are left unchanged and only the transmitter part is changed according to the modulation format being simulated at that particular instance. The modulation in the transmitter is done by using proper components from the OptiSystem library which when organized in the right order will give out a signal modulated in a certain format by the time it is fed into the optical fiber. Knowing the performance of modulation can help in WDM PON where the network gets to use passive components as it goes to user. Since no active amplification or correction equipment is used in WDM-PON, therefore using the format with the best performance can help with performance of overall system.

scholarly journals Performance Analysis of Different Electrical Filters in 10G Hybrid Passive Optical Network

2018 ◽  
Vol 7 (4) ◽  
pp. 6652
Author(s):  
N. Subhashini ◽  
A. Brintha Therese
Keyword(s):  
Optical Networks ◽  
Wavelength Division Multiplexing ◽  
Transmission Rate ◽  
Optical Network ◽  
Passive Optical Network ◽  
Wavelength Division ◽  
Modulation Format ◽  
Optic Fibers ◽  
The Cost ◽  
Wdm Pon

With growing number of applications and network traffic, optic fibers are extensively used in the access part of the network. Passive Optical Networks (PON) in particular, Ethernet PON (EPON) networks based on Time Division Multiple Access (TDMA) are more prominently used in many parts of the world. Though Wavelength Division Multiplexing (WDM) PON has its own advantages, considering the cost and utilisation of such networks in the access part makes it less useful. On the other hand, Hybrid PON network combines the advantages of both EPON and WDM PON Networks. The objective of this paper is to identify suitable electrical filters for a 16-channel Hybrid Passive Optical Network with a transmission rate of 10Gbps per channel, by analysing their performance in terms of Q factor and Bit Error Rate. Different filters like the Bessel filter, Gaussian filter, Raised Cosine Filter, Rectangular filter, Butterworth filter, Chebyshev Filter are compared and their performances are evaluated. DB Modulation format that provides a longer reach is used at the transmitter to evaluate the different scenarios and the simulation is carried out using Optisystem.

Analysis of Wireless Channel Capacity in RoF-DAS over WDM-PON System

2013 ◽  
Vol E96.C (2) ◽  
pp. 171-179 ◽  
Author(s):  
Tatsuhiko IWAKUNI ◽  
Kenji MIYAMOTO ◽  
Takeshi HIGASHINO ◽  
Katsutoshi TSUKAMOTO ◽  
Shozo KOMAKI ◽  
...  
Keyword(s):  
Channel Capacity ◽  
Wireless Channel ◽  
Wdm Pon
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