PON Monitoring Technique Using Single-FBG Encoders and Wavelength-to-Time Mapping

TL;DR

This paper introduces a new, compact, and cost-effective wavelength-to-time mapping technique using single-FBG encoders for remote monitoring of passive optical networks, demonstrating its feasibility for high-density network supervision.

Contribution

The paper proposes a novel coding-based monitoring method employing single-FBG encoders with unique spectral bandwidths, enabling efficient remote supervision of optical networks.

Findings

Feasibility demonstrated through experiments

Potential for integration into customer terminals

Applicable to high-density network monitoring

Abstract

We present a novel coding-based technique for remote monitoring of passive optical networks which exploits the wavelength-to-time mapping effect of broadband short pulses in a highly dispersive medium. In this scheme, each encoder consists in a single FBG written at the same central wavelength but each one having a unique spectral bandwidth. The ultra-compactness and low-cost of the encoders allow them to be potentially integrated inside the customers' terminal. We experimentally demonstrate the feasibility of the proposed method for the supervision of current and future high-density networks.