Performance analysis of incoherent multi-wavelength OCDMA systems under the impact of four-wave mixing

Dang, Ngoc T.; Pham, Anh T.

doi:10.1364/oe.18.009922

Cited by 17 publications

(10 citation statements)

References 18 publications

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“…The performance degradation of a MW-OCDMA system due to FWM effect is reported by Dang et al [18]. This system uses a broadband light source and on-off keying (OOK) modulation to transmit data upon an optical channel.…”

Section: Four Wave Mixingmentioning

confidence: 99%

“…BER worsen with the decrease of chip spacing; thus, system using larger chip spacing barely suffers from FWM. It is also shown that at error-free threshold of 10 −9 BER, the operational power increases by 6 dB to 13 dB for 25 GHz and 100 GHz chip spacing, respectively.Dang et al[18] also investigated FWM in 2-D MW-OCDMA which applies temporal encoding to the previous system (SAC-OCDMA). To better analyze FWM effect, two cases are considered; users with same time spreading (TS) patterns and with different TS patterns.…”

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confidence: 99%

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Fiber Non-linear Effects in Multiple-wavelengths Optical CDMA Systems

Seyedzadeh¹,

Sahbudin²,

Abas³

et al. 2013

IETE Tech Rev

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Multi-wavelength Optical Code Division Multiple Access (OCDMA) systems suffer from fiber impairments including non-linear effects (NLE), especially when the number of wavelengths and input power level increase. In this paper, a review of NLE, including self-phase modulation, cross-phase modulation, four wave mixing (FWM), stimulated Brillouin scattering and stimulated Raman scattering on the system performance of OCDMA systems is presented. As some of the non-linearities may have correlated effects on the performance of the system, the relations between these effects are also investigated. Bit error rate results reveal that the most important unwanted effect was caused by FWM.

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Section: Four Wave Mixingmentioning

confidence: 99%

mentioning

confidence: 99%

Fiber Non-linear Effects in Multiple-wavelengths Optical CDMA Systems

Seyedzadeh¹,

Sahbudin²,

Abas³

et al. 2013

IETE Tech Rev

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show abstract

“…In fact, the effect of coherent crosstalk degrades system performance much more severely. However, there have been limited reports on the influence of FWM in OCDMA systems and its impact was not yet investigated in details [6][7]. This paper will give more understanding on the behavior of FWM in 2-D TW OCDMA systems.…”

Section: Introductionmentioning

confidence: 94%

Understanding of FWM Behavior in 2-D Time-Spreading Wavelength-Hopping OCDMA Systems

Bazan

2016

The International Conference on Mathematics and Engineering Phy

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The behavior of four-wave mixing (FWM) in 2-D time-spreading wavelength-hopping (TW) optical code-division multiple-access (OCDMA) systems with coherent light sources is introduced. The analysis is performed in terms of several key system parameters, in particular, transmitted power per chip, wavelength spacing, number of active users, code weight,fiber type, and transmission length. To accomplish such study, the number of generated FWM components should be calculated first. Thus, for the first time, a general form for the FWM power generated in 2-D TW OCDMA systems is presented and explicit formulas for the number of FWM products that fall on each signal chip for symmetric codes are given.

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“…Where i 2 OBIb , i 2 RIN b , i 2 shb and i 2 th are the variance of noises related to optical beat interference (OBI), relative intensity noise (RIN), shot noise, and thermal noise, respectively. It should be noted that OBI occurs only because of beating between desired and interfering pulses as well as between interfering pulses themselves, on the same photodetector [22,23]. In DD detection, only desired pulses hit the photodetector, therefore; OBI is avoided in this technique (i 2 OBIb = 0).…”

Section: Theoretial Analysys With Direct Detection Decodingmentioning

confidence: 99%

“…then considering the case that I D is optimum. 19) the total probability of error can be summarized as [22] BER…”

Section: Theoretial Analysys With Direct Detection Decodingmentioning

confidence: 99%

DW-ZCC code based on SAC–OCDMA deploying multi-wavelength laser source for wireless optical networks

et al. 2017

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In this paper, double weight zero cross correlation (DW-ZCC) code is proposed for spectral amplitude coding optical code division multiple access (SAC-OCDMA) system. DW-ZCC takes the advantages of two previously proposed SAC-codes namely modified double weight (MDW) and zero-cross correlation (ZCC) codes, while providing optimized code length and maximum cross-correlation of zero. Although the proposed code can be utilized in SAC-OCDMA system with any optical medium, this research work focuses on outdoor wireless optical networks (WON) deploying multi-wavelength laser (MWL) source, where optical bandwidth is much limited. The mathematical and simulation analysis of proposed system employing direct decoding (DD) is developed, considering the influences of turbulence and system noises including relative intensity noise, optical beat interference (OBI) and receiver noises. It is shown that employing DD detection; it is possible to completely avoid OBI which enhances system capability. The results show that SAC-OCDMA-WON system is noticeably improved using DW-ZCC in term of transmission distance by at least 200 m in comparison with MDW and conventional ZCC codes.

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Performance analysis of incoherent multi-wavelength OCDMA systems under the impact of four-wave mixing

Cited by 17 publications

References 18 publications

Fiber Non-linear Effects in Multiple-wavelengths Optical CDMA Systems

Fiber Non-linear Effects in Multiple-wavelengths Optical CDMA Systems

Understanding of FWM Behavior in 2-D Time-Spreading Wavelength-Hopping OCDMA Systems

DW-ZCC code based on SAC–OCDMA deploying multi-wavelength laser source for wireless optical networks

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