[1] T. J. Xia, G. A. Wellbrock, M. F. Huang et al. Field trial of abnormal activity detection and threat level assessment with fiber optic sensing for telecom infrastructure protection. Optical Fiber Communications Conference and Exhibition (OFC), Th4H.3(2021).

[2] Z. Zhao, Z. Zhang, H. Shi et al. Field trail of shared risk optical fiber links detection based on OTDR and AI algorithm. Asia Communications and Photonics Conference (ACP), 1942(2022).

[3] E. E. Elsayed, D. Kakati, M. Singh et al. Design and analysis of a dense wavelength-division multiplexed integrated PON-FSO system using modified OOK/DPPM modulation schemes over atmospheric turbulences. Opt. Quantum Electron., 54, 768(2022).

[4] P. Sebos, J. Yates, G. Hjalmtysson et al. Auto-discovery of shared risk link groups. Optical Fiber Communication Conference and International Conference on Quantum Information, WDD3(2001).

[5] M. R. Fernández-Ruiz, A. Garcia-Ruiz, H. F. Martins et al. Protecting fiber-optic links from third party intrusion using distributed acoustic sensors. 19th International Conference on Transparent Optical Networks (ICTON), 1(2017).

[6] M. Yang, Y. Jiang, B. Zhou et al. Communication optical cable patrol management system based on RFID + GIS. Communications, Signal Processing, and Systems, 818(2021).

[7] Z. He, Q. Liu. Optical fiber distributed acoustic sensors: a review. J. Lightwave Technol., 39, 3671(2021).

[8] H. He, L. Jiang, Y. Pan et al. Integrated sensing and communication in an optical fibre. Light Sci. Appl., 12, 25(2023).

[9] Y. Li, C. Li, Z. Liu et al. Research and experiment on AI-based co-cable and co-trench optical fibre detection. European Conference on Optical Communication (ECOC), We4B.2(2022).

[10] Y. Li, D. Zhang, Z. Wang et al. Field trial of concurrent co-cable and co-trench optical fiber online identification based on ensemble learning. Opt. Express, 31, 42850(2023).

[11] E. E. Elsayed, B. B. Yousif. Performance evaluation and enhancement of the modified OOK based IM/DD techniques for hybrid fiber/FSO communication over WDM-PON systems. Opt. Quantum Electron., 52, 385(2020).

[12] Y. Yan, H. Zheng, Z. Zhao et al. Distributed optical fiber sensing assisted by optical communication techniques. J. Lightwave Technol., 39, 3654(2021).

[13] Y. Yan, F. N. Khan, B. Zhou et al. Forward transmission based ultra-long distributed vibration sensing with wide frequency response. J. Lightwave Technol., 39, 2241(2021).

[14] P. Boffi. Sensing applications in deployed telecommunication fiber infrastructures. European Conference on Optical Communication (ECOC), Mo4A.4(2022).

[15] P. S. Westbrook, T. Kremp, B. Zhu et al. Enhanced backscatter fibers for sensing in telecom networks. J. Lightwave Technol., 41, 1010(2023).

[16] Y. Yan, L. Lu, X. Wu et al. Simultaneous communications and vibration sensing over a single 100-km deployed fiber link by fiber interferometry. Optical Fiber Communication Conference (OFC), W1J.4(2023).

[17] E. Ip, Y.-K. Huang, G. Wellbrock et al. Vibration detection and localization using modified digital coherent telecom transponders. J. Lightwave Technol., 40, 1472(2022).

[18] H. Zhou, W. Zuo, Y. Qiao et al. Linear fitting-based residual frequency offset compensation in simultaneous transmitting and sensing system using coherent transponders. Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings (ACP/POEM), 1(2023).

[19] W. Zuo, H. Zhou, Y. Qiao et al. Investigation of co-cable identification based on ultrasonic sensing in coherent systems. IEEE Photon. Technol. Lett., 35, 1155(2023).

[20] A. Masoudi, T. P. Newson. Analysis of distributed optical fibre acoustic sensors through numerical modelling. Opt. Express, 25, 32021(2017).

[21] M. S. Faruk, S. J. Savory. Digital signal processing for coherent transceivers employing multilevel formats. J. Lightwave Technol., 35, 1125(2017).

[22] S. J. Savory. Digital coherent optical receivers: algorithms and subsystems. IEEE J. Sel. Top. Quantum Electron., 16, 1164(2010).

[23] A. Leven, N. Kaneda, U.-V. Koc et al. Frequency estimation in intradyne reception. IEEE Photon. Technol. Lett., 19, 366(2007).

[24] A. J. Viterbi, A. M. Viterbi. Nonlinear estimation of PSK-modulated carrier phase with application to burst digital transmission. IEEE Trans. Inf. Theory, 29, 543(1983).

[25] H. Gabai, A. Eyal. On the sensitivity of distributed acoustic sensing. Opt. Lett., 41, 5648(2016).

[26] C. Xing, Q. Zang, R. He et al. Phase stability control of optical fiber partial discharge ultrasonic sensing system. Sensors, 22, 8495(2022).