Analysis of capacity upgrading in L-band using power control strategy

Jing Zhou, Jianing Lu, Chao Lu, Changyuan Yu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review


To further increase the capacity of optical communication systems and networks with currently installed fibers, the L-band transmission needs to be exploited because the C-band spectral resource is going to be exhausted. From the perspective of network planning by operators, efficient estimation of increased capacity brought by added L-band channels is indispensable to evaluate the overall performance and cost. However, stimulated Raman scattering (SRS) arises for ultra-wideband transmission, which induces power transfer between low- and high-frequency channels. Moreover, the number of added L-band channels has an influence on the overall system performance through fiber nonlinearity. Above factors render the analysis of capacity upgrading beyond the mature C-band-only transmission a nontrivial task. In this letter, an analysis of capacity upgrading in L-band is provided using power control strategies including the local optimization global optimization (LOGO) algorithm and power offset and tilt control by OAs. It is found that with power control based on the LOGO results, not only quasi-linear capacity increase with the L-band channel number is provided, but higher overall capacity can be achieved compared with that with LOGO-only scheme.

Original languageEnglish
Title of host publicationProceedings of 2022 IEEE Region 10 International Conference, TENCON 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665450959
Publication statusPublished - Nov 2022
Event2022 IEEE Region 10 International Conference, TENCON 2022 - Virtual, Online, Hong Kong
Duration: 1 Nov 20224 Nov 2022

Publication series

NameIEEE Region 10 Annual International Conference, Proceedings/TENCON
ISSN (Print)2159-3442
ISSN (Electronic)2159-3450


Conference2022 IEEE Region 10 International Conference, TENCON 2022
Country/TerritoryHong Kong
CityVirtual, Online


  • GN model
  • L-band
  • LOGO
  • Power Control

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering


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