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Coherent transceiver architecture enabling data transmission and optical identification

Stella Civelli, Marco Secondini, Pantea Nadimi Goki, Luca Potì

TL;DR

The work addresses enhancing optical network security by combining data transmission with optical identification (OI) of subsystems. It introduces a coherent transceiver (C-TRX) architecture that can temporarily suspend data transmission to perform OI using coherent optical frequency domain reflectometry (C-OFDR) and Rayleigh backscatter, leveraging a pigtail-based PUF. Reliability is demonstrated through simulations showing very low false identification rates (WWI) that improve with larger sweep ranges $\Delta F$ and adequate SNR, enabling secure operation in standard link scenarios. The approach offers a practical, low-disruption method to authenticate network elements and monitor security, without requiring additional identification hardware on subsystems.

Abstract

We propose a coherent transceiver architecture able to transmit information and enhance the security of the optical network by identifying other optical systems and subsystems. Simulations show that identification is obtained with sufficient reliability in standard operating conditions.

Coherent transceiver architecture enabling data transmission and optical identification

TL;DR

The work addresses enhancing optical network security by combining data transmission with optical identification (OI) of subsystems. It introduces a coherent transceiver (C-TRX) architecture that can temporarily suspend data transmission to perform OI using coherent optical frequency domain reflectometry (C-OFDR) and Rayleigh backscatter, leveraging a pigtail-based PUF. Reliability is demonstrated through simulations showing very low false identification rates (WWI) that improve with larger sweep ranges and adequate SNR, enabling secure operation in standard link scenarios. The approach offers a practical, low-disruption method to authenticate network elements and monitor security, without requiring additional identification hardware on subsystems.

Abstract

We propose a coherent transceiver architecture able to transmit information and enhance the security of the optical network by identifying other optical systems and subsystems. Simulations show that identification is obtained with sufficient reliability in standard operating conditions.
Paper Structure (5 sections, 1 equation, 2 figures)

This paper contains 5 sections, 1 equation, 2 figures.

Figures (2)

  • Figure 1: Alice (C-TRX A) can either transmit information or identify Bob (C-TRX B) through its pigtail using C-OFDR. DAC: digital-to-analog converter.
  • Figure 2: (a) Estimated SNR versus measure time, (b) Probability of false positive and false negative versus SNR for different sweep ranges $\Delta F$.