Transmission of a 20 Gb/s NRZ OOK signal throughout a 390 km fiber link and a cascade of 11 x 50 GHz filters and 9 x EDFAs

Pataca, Daniel M.; Oliveira, J. C. R. F.; Juriollo, A.A.; Herbster, Adolfo F.; Rocha, Mônica de Lacerda

doi:10.1590/s2179-10742011000100015

Cited by 4 publications

(2 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Usually, the conventional OXCs and ROADMs comprise multiplexer, demultiplexer and wavelength selective switch (WSS) modules. Multiplexers/ networks [2]; investigation of a cascade of 11 FBG filters with bandwidth of 50 GHz in a 20 Gb/s NRZ system [4]; and analysis of optical filter-induced loss ripple, group delay ripple and dispersión [5,6]. Moreover, impact of optical filters on advanced modulation formats has also been studied in recent years.…”

Section: Introductionmentioning

confidence: 99%

Signal penalties induced by different types of optical filters in 100Gbps PM-DQPSK based optical networks

Pereda

Horche

2016

Optical Switching and Networking

View full text Add to dashboard Cite

Keywords:Optical filter Optical crosstalk Signal impairment Optical communication Polarization multiplexed differential quadrature phase shift keying (PM-DQPSK) Optical filters are crucial elements in optical communication networks. However, they seriously affect the signal quality, especially in the concatenation condition. In this paper, we study and simúlate the signal penalties induced by five types of filters, including Butterworth, Gaussian, Bessel, Fiber Bragg Grating (FBG) and Fabry-Perot (F-P) filters, in order to optimize the optical network performance. Signal penalties, including both filter concatenation effect and filter induced in-band and out-band crosstalk, are analyzed by eye opening penalty (EOP) and Q-penalty. Simulation results show that the Butterworth filter performs best among these four types of filters. Total Q-penalty induced by a Butterworth filter-based demultiplexer/multiplexer pair, considering both filter concatenation effect and crosstalk, is lower than 0.5 dB, when the filter bandwidth is in the range of 42-46 GHz. Simulations done in a 100 Gbps PM-DQPSK optical network indícate that the permitted cascaded number is 14 and 10 with respect to the case of filters aligned and misaligned, respectively. Penalties induced by láser frequency shift are investigated and the performance of the 3rd-order Butterworth filter is compared to the 4th-order superGaussian filter. Finally, discussions of optical filter performances, including insertion loss, reconfigurability and programmability, are presented.

show abstract

Section: Introductionmentioning

confidence: 99%

Signal penalties induced by different types of optical filters in 100Gbps PM-DQPSK based optical networks

Pereda

Horche

2016

Optical Switching and Networking

View full text Add to dashboard Cite

show abstract

“…In [5], the performance of a cascade of 11 filters with bandwidth of 50 GHz has been studied in a 20 Gb/s NRZ system. In [3,4,6] signal impairment caused by filter concatenation in coherent optical OFDM system has been presented.…”

Section: Introductionmentioning

confidence: 99%

Analysis of signal impairment and crosstalk penalty induced by different types of optical filters in 100 Gbps PM-DQPSK based systems

Chen¹,

Horche²,

Minguez

2014

2014 19th European Conference on Networks and Optical Communications - (NOC)

View full text Add to dashboard Cite

Optical filters are crucial elements in optical communication networks. Their influence toward the optical signal will affect the communication quality seriously. In this paper we will study and simulate the optical signal impairment and crosstalk penalty caused by different kinds of filters, which include Butterworth, Bessel, Fiber Bragg Grating (FBG) and Fabry-Perot (F-P). Signal impairment from filter concatenation effect and crosstalk penalty from out-band and in-band are analyzed from Q-penalty, eye opening penalty (EOP) and optical spectrum. The simulation results show that signal impairment and crosstalk penalty induced by the Butterworth filter is the minimum among these four types of filters. Signal impairment caused by filter concatenation effect shows that when center frequency of all filters is aligned perfectly with the laser's frequency, 12 50-GHz Butterworth filters can be cascaded, with 1-dB EOP. This value is reduced to 9 when the center frequency is misaligned with 5 GHz. In the 50-GHz channel spacing DWDM networks, total Q-penalty induced by a pair of Butterworth filters based demultiplexer and multiplexer is lower than 0.5 dB when the filter bandwidth is in the range of 42-46 GHz. Keywords-opticalfilter; optical communication; polarization multiplexed differential quadrature phase shift keying (PM-DQPSK); signal impairment; optical crosstalk

show abstract

Analysis of optical signal impairment induced by different types of optical filters in 40Gbps DQPSK and 100Gbps PM-DQPSK systems

Horche

Minguez

2015

Optical Fiber Technology

View full text Add to dashboard Cite

Transmission of a 20 Gb/s NRZ OOK signal throughout a 390 km fiber link and a cascade of 11 x 50 GHz filters and 9 x EDFAs

Cited by 4 publications

References 9 publications

Signal penalties induced by different types of optical filters in 100Gbps PM-DQPSK based optical networks

Signal penalties induced by different types of optical filters in 100Gbps PM-DQPSK based optical networks

Analysis of signal impairment and crosstalk penalty induced by different types of optical filters in 100 Gbps PM-DQPSK based systems

Analysis of optical signal impairment induced by different types of optical filters in 40Gbps DQPSK and 100Gbps PM-DQPSK systems

Contact Info

Product

Resources

About