Reflections and Multiple Rayleigh Backscattering in WDM Single-Fiber Loopback Access Networks

Arellano, C.; Langer, Klaus-Dieter; Prat, Josep

doi:10.1109/jlt.2008.929411

Cited by 61 publications

(36 citation statements)

References 14 publications

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“…To improve the performance, one could in principle increase the G RONU , but there are technological component issues that limit the maximum reachable gain of optical amplifiers; in addition, another issue can arise from the Rayleigh backscattering that is generated at the ONU side, as depicted in Figure 12 and explained in details in [32]. This means that, in order to satisfy the NG-PON2 requirements with a reflective PON architecture, direct-detection at the OLT side is out of question.…”

Section: Transmission Issues In Reflective Ponmentioning

confidence: 99%

Self-Coherent Reflective Passive Optical Networks

Straullu¹,

Abrate²,

Gaudino³

2015

Advances in Optical Fiber Technology: Fundamental Optical Phenomena and Applications

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Section: Transmission Issues In Reflective Ponmentioning

confidence: 99%

Self-Coherent Reflective Passive Optical Networks

Straullu¹,

Abrate²,

Gaudino³

2015

Advances in Optical Fiber Technology: Fundamental Optical Phenomena and Applications

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“…On the contrary, some previous research reports on dedicated fibers allocated for DL and UL with the wavelength reuse scheme [10][11][12][13]. A full duplex system with dedicated DL and UL optical fibers is the logical solution to avoid Rayleigh backscattering and optical interference as these are the major performance-limiting factors [14,15]. It is important to state that Rayleigh backscattering distortion is independent of an optical modulator but is optical fiber dependent.…”

Section: Proposed Full Duplex Lte Systemmentioning

confidence: 99%

Experimental Full Duplex Simultaneous Transmission of LTE Over a DWDM Directly Modulated RoF System

Kanesan¹,

Ng²,

Ghassemlooy³

et al. 2013

J. Opt. Commun. Netw.

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Abstract-In this paper, we experimentally demonstrate the seamless integration of full duplex system frequency division duplex (FDD) long-term evolution (LTE) technology with radio over fiber (RoF) for eNodeB (eNB) coverage extension. LTE is composed of quadrature phase-shift keying (QPSK), 16-quadrature amplitude modulation (16-QAM) and 64-QAM, modulated onto orthogonal frequency division multiplexing (OFDM) and single-carrier-frequency division multiplexing for downlink (DL) and uplink (UL) transmissions, respectively. The RoF system is composed of dedicated directly modulated lasers for DL and UL with dense wavelength division multiplexing (DWDM) for instantaneous connections and for Rayleigh backscattering and nonlinear interference mitigation. DL and UL signals have varying carrier frequencies and are categorized as broad frequency spacing (BFS), intermediate frequency spacing (IFS), and narrow frequency spacing (NFS). The adjacent channel leakage ratio (ACLR) for DL and UL with 64-QAM are similar for all frequency spacings while cross talk is observed for NFS. For the best case scenario for DL and UL transmissions we achieve error vector magnitude (EVM) values of ∼2.30%, ∼2.33%, and ∼2.39% for QPSK, 16-QAM, and 64-QAM, respectively, while for the worst case scenario with a NFS EVM is increased by 0.40% for all schemes.

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“…Data RB will comprise of the consequence of a reflection in the direction of the ONU, the same situation as Carrier RE . It can also lead to a re-alimented loop which is still worse in this situation due to the signal that reflects has larger power [8]. The expression of ' r P is:…”

Section: Rayleigh Backscattering Of the Upstream Datamentioning

confidence: 99%