Analysis of the four wave mixing effect (FWM) in a dispersion decreasing fiber (DDF) for a WDM system

Wehmann, Claus Franz; Fernandes, L.M.; Sobrinho, C. S.; Lima, J.L.S.; Silva, M.G. da; Almeida, E.F. de; Neto, J. A. Medeiros; Sombra, A. S. B.

doi:10.1016/j.yofte.2005.01.003

Cited by 14 publications

(7 citation statements)

References 20 publications

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“…The efficiency ( η ) of four-wave mixing is given by [ 3 ]

where Δ β represents the phase mismatch and may be expressed in terms of signal frequency differences:

where D C is the fiber chromatic dispersion and dD / dλ is a derivative dispersion coefficient of the optical fiber. The right term of ( 6 ) and ( 7 ) has small and negligible values.…”

Section: System Description and Theoretical Backgroundmentioning

confidence: 99%

“…Four-wave mixing (FWM) is one of the phenomena that may lower the effectiveness of the transmitted signal in wavelength division multiplexing (WDM) systems under dense channel spacing and low chromatic dispersion. In a WDM system with equally spaced channels, the new frequencies generated by FWM will drop at the channel frequencies and will introduce crosstalk [ 1 – 3 ]. The FWM effect is a result of the change in the intensity dependence of the refractive index of optical fiber.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Four-Wave Mixing Crosstalk Suppression Based on the Pairing Combinations of Differently Linear-Polarized Optical Signals

Abd

Din

Al-Mansoori

et al. 2014

The Scientific World Journal

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A new approach to suppressing the four-wave mixing (FWM) crosstalk by using the pairing combinations of differently linear-polarized optical signals was investigated. The simulation was conducted using a four-channel system, and the total data rate was 40 Gb/s. A comparative study on the suppression of FWM for existing and suggested techniques was conducted by varying the input power from 2 dBm to 14 dBm. The robustness of the proposed technique was examined with two types of optical fiber, namely, single-mode fiber (SMF) and dispersion-shifted fiber (DSF). The FWM power drastically reduced to less than −68 and −25 dBm at an input power of 14 dBm, when the polarization technique was conducted for SMF and DSF, respectively. With the conventional method, the FWM powers were, respectively, −56 and −20 dBm. The system performance greatly improved with the proposed polarization approach, where the bit error rates (BERs) at the first channel were 2.57 × 10−40 and 3.47 × 10−29 at received powers of −4.90 and −13.84 dBm for SMF and DSF, respectively.

show abstract

“…The efficiency ( η ) of four-wave mixing is given by [ 3 ]

where Δ β represents the phase mismatch and may be expressed in terms of signal frequency differences:

where D C is the fiber chromatic dispersion and dD / dλ is a derivative dispersion coefficient of the optical fiber. The right term of ( 6 ) and ( 7 ) has small and negligible values.…”

Section: System Description and Theoretical Backgroundmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Four-Wave Mixing Crosstalk Suppression Based on the Pairing Combinations of Differently Linear-Polarized Optical Signals

Abd

Din

Al-Mansoori

et al. 2014

The Scientific World Journal

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show abstract

“…In addition, the variation of dispersion of the Bragg PCF is only AE1.3 ps$(nm$km) -1 , which is much smaller than the dispersion variation of the G.656 fibers. Moreover, enough positive dispersion of the Bragg PCF can depress nonlinear effects in the DWDM systems, such as four waves mixing (FWM) effects and cross-phase-modulation (XPM) [17][18][19][20] effects. Figure 4 shows the dispersion slope curves of Bragg PCF, G.656 and G.652 fibers.…”

Section: Measurements and Analysismentioning

confidence: 99%

Dispersion-flattened Bragg photonic crystal fiber for large capacity optical communication system

Chen

2009

Front. Optoelectron. China

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A novelty dispersion ultra-flattened Bragg photonic crystal fiber (PCF) has been fabricated in this paper. The fiber is composed of compound cores and periodical claddings with 11 coaxial rings. It has flattened dispersion of 8.5AE1.3 ps$(nm$km) -1 in the communication wavelength range of 1460-1625 nm. Its dispersion slope alters from -0.0428 to 0.0392 ps$nm -2 $km -1 . The low attenuation of 0.52 dB/km and low bending loss of 0.09 dB at 1550 nm of the fiber are also achieved. The Bragg PCF has enormously potential application in the fields of dense wavelength division multiplexing systems because of its superior dispersion properties and easy splicing performances.

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“…When the total light power inside a fiber is increased, the nonlinear effect becomes uncontrolled and may affect signal efficiency and degrade system performance [2]. One of the major factors that possibly cause crosstalk in WDM systems, which has equally spaced channels, is the four-wave mixing (FWM) [3][4][5][6][7][8][9][10][11]. For optical communication systems, suppressing FWM efficiency is ideal.…”

Section: Introductionmentioning

confidence: 99%

Four-Wave Mixing Suppression Method Based on Odd-Even Channels Arrangement Strategy

Salim¹,

Haider²,

Aljamal³

et al. 2018

PIER M

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In this work, a new technique in suppressing the effect of four-wave mixing (FWM) by Odd-Even Channels Arrangement (OEC) is presented. The proposed technique is verified mathematically and by simulations with other recent techniques which are input power and channel spacing under the same input parameters. Simulation was done with the power variation effect, and the bit rate was 100 Gb/s. Based on theoretical and simulation analyses, FWM power was drastically reduced by more than 10 dB when OEC was conducted. In terms of system performance, OEC offered better performance than previous techniques in both theoretical and simulation analyses.

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Analysis of the four wave mixing effect (FWM) in a dispersion decreasing fiber (DDF) for a WDM system

Cited by 14 publications

References 20 publications

Four-Wave Mixing Crosstalk Suppression Based on the Pairing Combinations of Differently Linear-Polarized Optical Signals

Four-Wave Mixing Crosstalk Suppression Based on the Pairing Combinations of Differently Linear-Polarized Optical Signals

Dispersion-flattened Bragg photonic crystal fiber for large capacity optical communication system

Four-Wave Mixing Suppression Method Based on Odd-Even Channels Arrangement Strategy

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