Summary
Asia-Pacific Network Operations and Management Symposium
2022
Session Number:PS4
Session:
Number:PS4-14
An Optical DWDM Transmission Architecture for High Capacity Based on Heterogeneous Submarine Cable System
Kuan-Heng Shen, Seng-Da Tu , Jian-Kai Huang ,
pp.-
Publication Date:2022/09/28
Online ISSN:2188-5079
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Summary:
Several of the Taiwan-to-island submarine cable systems constructed in the early days consisted of dispersion-shifted fiber (DSF; G.653), which was designed for 10G single-wavelength system without dispersion accumulation. However, as service demand grows, single-wavelength system doesn遯ｶ蜀ｲ apply to the current submarine system. In order to reuse the existing submarine cable and fulfill the demand of capacity, we use DSF to carry multi-wavelength signals. However, the four-wave mixing effect causes serious impacts on density wavelength division multiplexing (DWDM) system for the reason that the dispersion of DSF in C-band is close to zero. In this paper we propose high-capacity submarine transmission system architecture based on a heterogeneous submarine system, with the use of wavelength selection, power adjustment, and system design, we overcome the four-wave mixing effect and validate the capacity of the submarine system can reach 1.6T bit/s, re-open a new life for the dispersion-shifted submarine cable.