The influence of binary modulations in passive optical network based on WDM

In this article the optical time division multiplexingtechnique for high speed point-to-point optical networksis discussed. We performed test of influence of selected types modulation formats in the optical time division multiplexing simulation model with a distance of 30 km. Additionally, this paper focuses on maximum bandwidth usage, improvement of bit error rate and the another goal is to achieve the maximal transmission distance by using of special compensation optical fiber. Optimal length of compensation optical fiber was found and used during simulations. We demonstrated positive influence compensation optical fiber on bit error rate. For comparisonof modulation formats such as return-to-zero, non-return-to-zero, chirped-return-to-zero, carrier-suppressed-return-to-zero, and m-ary quadrature amplitude modulation were tested. Our results confirm that it is possible to achieve better bit error rate for selected modulation formats.

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“…When there is a change to logical 0, phase is 0. NRZ has narrower spectrum of the central lobe than other modulation formats [9].…”

Section: The Modulation Formatsmentioning

confidence: 93%

“…The CRZ and CSRZ modulations are superstructure of RZ. In ideal, they are identical to RZ pulses and chirp-free [9].…”

Section: The Modulation Formatsmentioning

confidence: 99%

The Influence of Digital Modulations on 320 Gbit/s Optical Time Division Multiplexing

Kočí

Münster

Horváth

et al. 2015

JCOMSS

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“…Also optical power budget is not so high and hence these systems are currently not suitable for PON networks. [13] Optical distribution network consists of a 10 km long optical fibre leading to a power splitter and a second fibre with incrementally added length up to 30 km in total. The power splitter in our case performs as an ideal power splitter.…”

Section: A Plan Amentioning

confidence: 99%

High Speed (100G) Access Networks

Horváth

Chlapek

Münster

et al. 2018

JCOMSS

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Abstract-Passive optical networks are currently the most promising solution for access networks. Increasing bandwidth requirements and big data applications need a huge bandwidth. Nowadays, gigabit passive optical networks do not seem to be suitable for these purposes. This paper is focused on describing the development, parameters and needs for High Speed Access Networks (such as 100G EPON). The simulations with current wavelengths plans are presented. For simulations we used VPITransmissionMaker TM 9.7. Our goal was to create a rudimentary bidirectional PON system with one ONU and do several simulation scenarios by artificially increasing loss in a splitter for simulating more ONUs. Our following results consist of BER values and eye diagrams for each simulation scenario and proof that 100G EPON networks are most promising networks for the future. We proved that the 100G-EPON networks fully support the basic and currently used split ratios. We also created a two-way communication model and evaluated the obtained data from the bit error-rate and system reach point of view. The entire model was compared with the final version of NG-PON2.

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“…3 The wavelength-division-multiplexing passive optical network (WDM-PON) has become a promising solution for the next generation of fiber-to-the-home (FTTH) architecture owing to its virtually unlimited bandwidth, security, and protocol transparency. 4 WDM-PONs offer much higher transmission capacity and longer transmission distance than current PONs by using separate wavelengths for each end unit. 3 5 Nonlinear and dispersion effects may affect the performance of a WDM-PON system, but certain modulation formats can be used to improve the quality of the signal.…”

Section: Introductionmentioning

confidence: 99%

20-Gb/s Transmission Over 25-km in Wavelength Division Multiplexing Passive Optical Network with Centralized Light Source

Elewah¹,

Mohammed²,

Aly³

2017

Journal of Nanoelectronics and Optoelectronics

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In this study, a full duplex of 16-channel wavelength division multiplexing passive optical network (WDM-PON) architecture is designed and investigated using a centralized light source (CLS). A 20-Gb/s downstream bit rate is achieved without using a digital signal processing (DSP) unit or active elements. A carefully designed Mach-Zehnder modulator (MZM) operates as a pulse carver to refine single channel spectrum is utilized at each optical line terminal (OLT). More channels, a maximum bit error rate (BER) of 10 −13 and at least quality factor (Q-factor) of 7.0 are achieved. An on off keying (OOK) format of 5-Gbit/s is used for the upstream transmission. This is done with low complexity and a transmission distance of 25 km.

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The influence of binary modulations in passive optical network based on WDM

Cited by 5 publications

References 5 publications

The Influence of Digital Modulations on 320 Gbit/s Optical Time Division Multiplexing

The Influence of Digital Modulations on 320 Gbit/s Optical Time Division Multiplexing

High Speed (100G) Access Networks

20-Gb/s Transmission Over 25-km in Wavelength Division Multiplexing Passive Optical Network with Centralized Light Source

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