Optical transmission links are generally composed of optical fibers, optical amplifiers, and
optical filters. In this paper, we present a channel reconstruction method (CRM) that extracts …

Digital twin (DT) has revolutionized optical communication networks by enabling their full life-
cycle management, including planning, prediction, optimization, upgrade, and …

This paper presents analytical results on longitudinal power profile estimation (PPE)
methods, which visualize signal power evolution in optical fibers at a coherent receiver. The …

For any system that follows rigorous mathematical and physical theories like fiber-optic
system, system parameter estimation is crucial for system detection and monitoring. In this …

This paper presents a linear least squares method for fiber-longitudinal power profile
estimation (PPE), which estimates the optical signal power distribution throughout a fiber …

In recent years, optical networks have become more complex due to traffic increase and
service diversification, and it has become increasingly difficult for network operators to …

A new class of digital signal processing (DSP)-based fiber-longitudinal optical power profile
monitor has recently been proposed and demonstrated toward optical network tomography …

A fiber link anomaly detection and estimation approach is proposed. Using signal nonlinear
distortion, signal power profile anomaly and passband narrowing anomaly can be …

The development of optical fiber technology has facilitated the technological innovation in
optical fiber communication and sensing systems over the past decades. Among all the fiber …

In this paper, we identify challenges in developing future optical network infrastructure for
new services based on technologies such as 5G, virtual reality, and artificial intelligence …