Impact of fibre nonlinearities in optical DWDM transmission systems at different data rates

Kaur, Gurmeet; Singh, Maninder; Patterh, Manjeet Singh

doi:10.1016/j.ijleo.2009.11.001

Cited by 10 publications

(4 citation statements)

References 13 publications

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“…In early research, about 75 W of pump power was required to generate the Stokes radiation at 545 nm in a single-mode fiber of 9-m length [4]. So it requires very high pump powers if starting from spontaneous scattering level.…”

Section: Simulation and Discussionmentioning

confidence: 99%

Influence to 16-QAM of CATV using the third-order pumped distributed Raman amplifier

et al. 2013

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In order to study the practical applicabality of the 3rd-order distributed Raman amplifier (DRA) in Cable Antenna Television (CATV) system, the structure of the 3rd-order DRA is put forward firstly, and the effect of higher order simulated Raman scattering is investigated. Moreover a simulated 3rd-order DRA-CATV system over 120 km fiber is set up to study its performance of 16-QAM as the main digital signal. In order to compare the performances, a simulated 1st-order DRA-CATV system is also set up. Simulation results indicate that the bit error rate (BER) of 16-QAM in the 3rd-order DRA-CATV system is lower than that in the 1st-order DRA-CATV system. The theory results are beneficial to apply a higher-order Raman pumping (HOP) DRA for the future experiment.

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Section: Simulation and Discussionmentioning

confidence: 99%

Influence to 16-QAM of CATV using the third-order pumped distributed Raman amplifier

et al. 2013

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“…al., 2013;Karlık, 2016a;Karlık, 2016b) while analyses have been carried out for just SRS effects in some papers (Singh and Hudiara, 2004;Kaur et. al., 2015) or for the combined effect of SRS and FWM but in the presence of amplified spontaneous emission (ASE) noise generated by erbium-doped fiber amplifiers (EDFAs) in some others (Kaur and Singh, 2007a;Kaur and Singh, 2007b;Kaur et. al., 2010;Kaur et.…”

Section: Introductionmentioning

confidence: 99%

SRS Ve FWM Olaylarinin DWDM-Gpon Si̇stemleri̇n Aşaği Yönlü Kanal Performanslari Üzeri̇ndeki̇ Bi̇rleşi̇k Etki̇si̇

Ibrahim¹,

Karlik²

2018

Uludağ University Journal of the Faculty of Engineering

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In this paper the combined impact of stimulated Raman scattering (SRS) and four-wave mixing (FWM) on the downlink channel performance of dense wavelength division multiplexed-gigabit passive optical networks (DWDM-GPONs) has been compared with the single impact of FWM via signal-tocrosstalk ratio (SXR) simulations performed on center downlink channels of 7-, 15-and 31-channel DWDM-GPON systems. Simulation results show that SRS compensates negative impacts of FWM and compensation significance enhances with increasing channel numbers and channel spacing values. At high channel spacing values of 50 GHz and 100 GHz, variation of SXR can display a strong oscillatory behavior in very short channel length variations of 0.5 km. The combined impact of SRS and FWM enhances the maximum oscillation amplitude of SXR variation with respect to the single impact of FWM at those channel spacing values. It has been observed that Raman gain exhibits an approximately linear variation with channel input powers in 0.1-5 mW range and it increases with increasing fiber lengths, channel spacing values and channel numbers. Results of this research emphasize the significant difference between the combined impact of SRS and FWM and the single impact of FWM on DWDM-GPON systems and give important hints for current DWDM-GPON implementations.

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“…Emergence of efficient and powerful broadband optical amplifiers − in particular, erbium-doped fibre amplifiers (EDFAs) − has spurred an enormous increase in the capacity and reach in the telecommunication networks. The large gain bandwidth for these amplifiers has enabled dense WDM (DWDM) technology for long enough distances and channel counts [1]. Instead of installing new fibre links, additional wavelength channels are added to the existent transmission systems.…”

Section: Introductionmentioning

confidence: 99%

“…The DWDM is a technology that uses multiple wavelengths to transport the data through a large number of separate channels at high data rates. The reach of existing systems is limited by noise from the used amplifiers, combined with nonlinear effects from transmission [1]. Most of today's optical network concepts are based on DWDM, which means that optical filters are mainly needed in order to route and select specific wavelength channels [3,4].…”

Section: Introductionmentioning

confidence: 99%

DWDM Transmission Based on the Thin-Film Filter Technology

Ozoliņš¹,

Bobrovs²,

Ivanovs³

2011

Latvian Journal of Physics and Technical Sciences

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DWDM Transmission Based on the Thin-Film Filter Technology A dense wavelength division multiplexing (DWDM) transmission scheme with two thin-film filters (FWHM bandwidth 100 GHz and 200 GHz) has been realized to evaluate the minimum channel interval needed for a satisfactory bit error ratio. For this purpose, detailed research was conducted into the impact of the filters on the optical signal's de-multiplexing in a DWDM system, in which the measurements of eye diagrams and the optical power spectral densities of a received signal were made. From the results of measurements the minimum channel interval has been found for the optical filters that ensures reliable data transmission and higher spectral efficiency of the whole system. It was found that for a DWDM system with a 100 GHz filter a sufficient channel interval is 75 GHz at 10 Gbit/s data transmission speed, which means that its spectral efficiency is increased from 0.1 bit/s/Hz to 0.1333 bit/s/Hz.

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Impact of fibre nonlinearities in optical DWDM transmission systems at different data rates

Cited by 10 publications

References 13 publications

Influence to 16-QAM of CATV using the third-order pumped distributed Raman amplifier

Influence to 16-QAM of CATV using the third-order pumped distributed Raman amplifier

SRS Ve FWM Olaylarinin DWDM-Gpon Si̇stemleri̇n Aşaği Yönlü Kanal Performanslari Üzeri̇ndeki̇ Bi̇rleşi̇k Etki̇si̇

DWDM Transmission Based on the Thin-Film Filter Technology

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