Publication detail

Coherent Data System and Slow Data Transmission in a Single Fiber with ITU Grid Spacing

HORVÁTH, T. ŠÍMA, J. RADIL, J. VOJTĚCH, J.

Original Title

Coherent Data System and Slow Data Transmission in a Single Fiber with ITU Grid Spacing

Type

conference paper

Language

English

Original Abstract

In the period following the COVID-19 outbreak, there continues to be a demand for high-speed data services and sufficient bandwidth. From a transport network perspective, a coherent system transmits data independent of the specific transmission wavelengths . However, it is desirable to address the transmission of slow signals (e.g., OOK) in the same fiber and their interaction between transmissions. Here, we assess the effect of a slow signal with a low modulation rate in a DWDM network on high-speed (super channel) 800G transmission. To evaluate the effect on high-speed transmission, the Q factor and ESNR parameters provided by the Ciena transmission system were analyzed. For the test setup and the combination of the coherent 800G signal with the standard DFB transceiver signal and 100 GHz spacing. The 800G signal required 112 GHz bandwidth for its transmission. For a path length of 200 km and for modulation rates of the OOK signal ranging from 100 Mbit to 4 Gbit, we found no significant effect on the evaluated parameters of the Q factor and ESNR of the transmitted 800 G signal. The more significant effect on the 800G signal is, the mutual power level of neighboring channels with different modulation types. To limit the mutual influence of adjacent signals, these signals must also be balanced according to their maximum (peak) power level in the transmitted spectrum.

Keywords

Coherent system; high-speed data transmission; OOK; ITU grid; interference

Authors

HORVÁTH, T.; ŠÍMA, J.; RADIL, J.; VOJTĚCH, J.

Released

27. 9. 2023

Publisher

SPIE

Location

USA

ISBN

9781510665422

Book

SPIE Optical Engineering + Applications

Pages from

1

Pages to

6

Pages count

6

URL

https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12664/2676743/Coherent-data-system-and-slow-data-transmission-in-a-single/10.1117/12.2676743.full

BibTex

@inproceedings{BUT184835,
  author="Tomáš {Horváth} and Jaromír {Šíma} and Jan {Radil} and Josef {Vojtěch}",
  title="Coherent Data System and Slow Data Transmission in a Single Fiber with ITU Grid Spacing",
  booktitle="SPIE Optical Engineering + Applications",
  year="2023",
  pages="1--6",
  publisher="SPIE",
  address="USA",
  doi="10.1117/12.2676743",
  isbn="9781510665422",
  url="https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12664/2676743/Coherent-data-system-and-slow-data-transmission-in-a-single/10.1117/12.2676743.full"
}