Gain flattening of DWDM channels for the entire C &amp; L bands

Bilal, Syed Muhammad; Zafrullah, M.; Islam, Md. Ariful

doi:10.1364/jot.79.000557

Cited by 5 publications

(3 citation statements)

References 17 publications

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“…The gain flattening over a given wavelength range for the conventional optical amplifiers is limited because of its dependence on the signal wavelength and width of radiating energy bands. 4 In this scenario, a hybrid optical amplifier is a viable option to play a key role, 5,6 as these offer the required gain bandwidth, simultaneously providing a flat gain. 7,8 The optical waveguide amplifiers are typically fabricated on a planar substrate, thus exhibiting the advantages of a compact structure with an integration capability.…”

Section: Introductionmentioning

confidence: 99%

Achieving high gain using Er-Yb codoped waveguide/fiber optical parametric hybrid amplifier for dense wavelength division multiplexed system

Obaid

Shahid

2018

Opt. Eng.

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A hybrid optical amplifier is proposed using a combination of Er-Yb codoped waveguide amplifier (EYDWA) and fiber optical parametric amplifier (FOPA). The scheme is investigated for 100 × 40 Gb∕s dense wavelength division multiplexed (DWDM) system at 0.2-nm channel spacing. The parameters are optimized to achieve a flat gain of >30.6 dB, with a gain ripple of 2.67 dB. This is obtained over a wavelength range of 1542 to 1562 nm at −10-dBm optimum input power per channel, without using any costly gain flattening scheme. For higher input powers up to 10 dBm, an increase in gain ripple from 2.67 to 6.13 dB is observed. The gain ripple of 2.67 dB of the proposed EYDWA-dual pump FOPA configuration is also much better than 10.32 dB for the hybrid EYDWA-single pump FOPA. The obtained high and flat gain, along with the low noise figure, confirms the usefulness of the proposed amplifier for applications in long-haul DWDM systems.

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Section: Introductionmentioning

confidence: 99%

Achieving high gain using Er-Yb codoped waveguide/fiber optical parametric hybrid amplifier for dense wavelength division multiplexed system

Obaid

Shahid

2018

Opt. Eng.

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“…Additionally, low price mobile services, are also forcing a huge increment on the capacity demand [1]. Among the key technologies to respond to these needs are low loss modern fibers, which make possible 40THz optical window (the O, E, S, C and L bands) system operation, and wideband Raman optical amplifiers.Over the past years, techniques and methodologies to design wideband Raman amplifiers have been reported in the literature [2][3][4][5][6][7][8]. These techniques use multiple pumps, around five to eight, to achieve an 80 nm bandwidth with a ripple better than 0.1dB.…”

mentioning

confidence: 99%

“…Over the past years, techniques and methodologies to design wideband Raman amplifiers have been reported in the literature [2][3][4][5][6][7][8]. These techniques use multiple pumps, around five to eight, to achieve an 80 nm bandwidth with a ripple better than 0.1dB.…”

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confidence: 99%

A simple strategy to design broadband low power consumption distributed Raman amplifier

Santos

Martinez

Giraldi

2017

J. Microw. Optoelectron. Electromagn. Appl.

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Abstract-In this work, a simple strategy to design wideband low power consumption Raman amplifiers is demonstrated for a threepump configuration using a low water peak optical fiber. The approach is based on the introduction of a novel numerical measure, which quantifies and isolates pump-pump interaction contribution to gain profile and analyzes its correlation to amplifier minimum ripple. The method tailors the amplifier gain spectrum over 80nm bandwidth with a ripple smaller than 1dB, a gain on the order of 4dB for up to 75km fiber length, and a total pump power consumption smaller than 300mW.Index Terms-Optical Communications, Raman Amplifiers, Raman Amplifier Optimization I. INTRODUCTION Recent advances in Internet-based applications accessible for both commercial and residential customers as well as evolving social networks still increases the traffic growth throughout the network. Additionally, low price mobile services, are also forcing a huge increment on the capacity demand [1]. Among the key technologies to respond to these needs are low loss modern fibers, which make possible 40THz optical window (the O, E, S, C and L bands) system operation, and wideband Raman optical amplifiers.Over the past years, techniques and methodologies to design wideband Raman amplifiers have been reported in the literature [2][3][4][5][6][7][8]. These techniques use multiple pumps, around five to eight, to achieve an 80 nm bandwidth with a ripple better than 0.1dB. The drawback of such approaches is the high power consumption in the Raman amplification module, and the use of complex and time consuming numerical optimization routines to find the best combination of pump power and wavelengths [9][10]. Table I shows previous works reported in the literature regarding the number of pumps lasers, total power consumption and ripple for Raman amplifiers with approximately 80 nm bandwidth.A simple strategy to design broadband low power consumption distributed Raman amplifier Renan S. Santos, Maria Aparecida G. Martinez, Centro Federal de Educação Tecnológica Celso Suckow da Fonseca, Photonics Lab, Electrical Engineering Department, Avenida Maracanã, 229, Rio de Janeiro, Brazil, 20271-110, renansilvasantos@gmail.com, magmartinez@gmail.com Maria Thereza M. R. Giraldi Instituto Militar de Engenharia, Photonics Lab,Electrical Engineering Department, Praça General Tibúrcio, 80, Rio de Janeiro, Brazil, 22290-270, mtmrocco@ime.eb.br Journal of Microwaves, Optoelectronics and Electromagnetic Applications, Vol. 16, No. 3, September 2017 In addition, since the interest concerning environmental issues is intensifying, the use of low power consumption devices and systems will be a necessity in the near future. Consequently, future networks should have the capacity to provide a massive quantity of bandwidth in an energy efficient way [1]. Another concern in modern long-haul broadband fiber optic communication systems using wavelength division multiplexing (WDM) is the minimization of the amplifier ripple [11][12]. In this work...

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Numerical achievement of high and flat gain using Er-Yb co-doped fiber/Raman hybrid optical amplifier

Obaid

Shahid

2019

Optik

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Gain flattening of DWDM channels for the entire C & L bands

Cited by 5 publications

References 17 publications

Achieving high gain using Er-Yb codoped waveguide/fiber optical parametric hybrid amplifier for dense wavelength division multiplexed system

Achieving high gain using Er-Yb codoped waveguide/fiber optical parametric hybrid amplifier for dense wavelength division multiplexed system

A simple strategy to design broadband low power consumption distributed Raman amplifier

Numerical achievement of high and flat gain using Er-Yb co-doped fiber/Raman hybrid optical amplifier

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