Optical performance monitoring (OPM) involves measuring and estimating different physical parameters of transmitted signals and components in an optical network either at the receiver or at an intermediate node along the path (Dong et al. FS optical transmission link monitoring solution integrates OPD, OTDR, and OSW monitoring cards to deliver enhanced optical performance, enabling real-time fault detection, precise fault location, and proactive network maintenance, which reduces downtime and operational costs. In this paper, we present a channel reconstruction method (CRM) that extracts physical characteristics of multiple link components such as longitudinal fiber losses, chromatic. In fiber-optic communication systems, it is crucial for operators to accurately monitor various physical parameters along optical links to fully leverage the potential transmission capacity and conduct fault analysis. The primary objective of this project is to determine how accurately the.
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