Sliceable transponders for metro-access transmission links

Wagner, Christoph; Madsen, Peter Hauge; Spolītis, Sandis; Olmos, J. J. Vegas; Monroy, Idelfonso Tafur

doi:10.1117/12.2079079

Cited by 1 publication

(3 citation statements)

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“…The electrical signal with N GHz frequency bandwidth can be sliced into multiple slices. The number of slices depends on the electrical signal data rate and the signal is sliced in the exact number of slices for each slice to match the transceiver bandwidth [5], [6]. Signal slices are transmitted simultaneously over different WDM channels in an optical distribution network (ODN).…”

Section: Spectrum Slicing Using Dsp Blockmentioning

confidence: 99%

“…Therefore, we can slice M-PAM optical signal bandwidth in a smaller number of slices to transmit higher bit rate signals (e.g., doubled or quadrupled) compared to previous research, where NRZ is used [1], [2], [4]- [6]. The authors in [2] achieved maximum transmission rate of 56 Gbit/s and in [5] the maximal reach of 40 km for 10 Gbit/s. In addition, [8] shows that potential energy consumption reduction is measured in hundreds of wats if spectrum slicing using DSP is applied.…”

Section: Introductionmentioning

confidence: 95%

“…The next consideration is the multiplexing scheme for transmitting slices over the network. It depends on the application typenon-real-time and real-time [5]. Non-realtime applications can be supported by timedivision-multiplexing (TDM).…”

Section: Introductionmentioning

confidence: 99%

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Extending Transceiver Capacity with a Scalable Spectrum Slicing Technique for Optical Access Networks

Skladova,

Murnieks,

Kurbatska

et al. 2024

Latvian Journal of Physics and Technical Sciences

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The paper demonstrates a spectrum slicing technique applied to PAM-4 modulated signal spectrum at 40 Gbaud baudrate for optical access networks. The spectrum slicing is shown in VPIphotonics simulation environment, where characteristics of key components are measured in the laboratory and loaded into the corresponding elements of the simulation setup. The spectrum of electrical baseband signal is sliced in four slices introducing an additional degree of freedom – higher data rate signals can be transmitted by re-using already-existing lower bandwidth transceiver components in an optical access network. This tackles the electronic bottleneck enabling the on-demand variable bandwidth allocation and extends the life span of opto-electrical components during network upgrades. Furthermore, the use of the proposed spectrum slicing technique has a positive side-effect when it comes to security concerns, as the signal spectrum is divided into slices. All slices are necessary to obtain the reconstructed signal and even if an eavesdropper gets most of the slices it is still not enough. The simulation results show that the proposed spectrum slicing and stitching approach is a viable solution to overcome the problem of limited frequency bandwidth of electrical components.

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Section: Spectrum Slicing Using Dsp Blockmentioning

confidence: 99%