TY - GEN
T1 - Simplified Linewidth-Tolerance OFDR based on Embedded-Referencing Phase Noise Compensation
AU - Chen, Shuyan
AU - He, Huan
AU - Lu, Chao
AU - Zhao, Zhiyong
AU - Tang, Ming
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025/11
Y1 - 2025/11
N2 - We propose a novel linewidth-tolerant OFDR system that eliminates the need for separate auxiliary interferometers through an innovative embedded-referencing phase noise compensation scheme. By implementing a customized optical path design, our system achieves simultaneous acquisition of both laser phase noise (LPN) and sensing signals through a single receiver. Building on this architecture, we demonstrate a modified deskew filter method that utilizes the embedded reference within the acquired sensing signal to enable precise phase noise compensation. Experimental results show the system achieves 13.8 mm spatial resolution over a 1.9 km sensing distance using only a 200 kHz-linewidth tunable laser source and a single integrated coherent receiver.
AB - We propose a novel linewidth-tolerant OFDR system that eliminates the need for separate auxiliary interferometers through an innovative embedded-referencing phase noise compensation scheme. By implementing a customized optical path design, our system achieves simultaneous acquisition of both laser phase noise (LPN) and sensing signals through a single receiver. Building on this architecture, we demonstrate a modified deskew filter method that utilizes the embedded reference within the acquired sensing signal to enable precise phase noise compensation. Experimental results show the system achieves 13.8 mm spatial resolution over a 1.9 km sensing distance using only a 200 kHz-linewidth tunable laser source and a single integrated coherent receiver.
KW - distributed fiber sensors
KW - OFDR
KW - phase noise compensation
UR - https://www.scopus.com/pages/publications/105034107429
U2 - 10.1109/ACP66871.2025.11349842
DO - 10.1109/ACP66871.2025.11349842
M3 - Conference article published in proceeding or book
AN - SCOPUS:105034107429
T3 - Asia Communications and Photonics Conference, ACP
SP - 1
EP - 4
BT - 2025 Asia Communications and Photonics Conference, ACP 2025
PB - Optica Publishing Group (formerly OSA)
T2 - 2025 Asia Communications and Photonics Conference, ACP 2025
Y2 - 5 November 2025 through 8 November 2025
ER -