N × N Coupler Uniformity in a CWDM Passive Star Home Network Based on Multimode Fiber: A Time-Effective Calculation Method

Richard, Francis; Guignard, P.; Pizzinat, A.; Tanguy, Éric; Li, H. W.

doi:10.1364/jocn.4.000a48

Cited by 4 publications

(2 citation statements)

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“…This remarkable capability of the CWDM Mux/Demux makes it an efficient and reliable technique for seamlessly integrating communication and an FBG-based sensor system. As a result of this integration, the overall system achieves notable advantages in terms of its cost-effectiveness, high data capacity, and exceptional adaptability, as further evidenced by the aforementioned research references [23]. Thus, employing the CWDM Mux/Demux technology as a vital component in this integrated system not only ensures optimal signal compatibility and functionality but also contributes to the overall efficiency, capacity, and adaptability of the entire system architecture.…”

Section: Introductionmentioning

confidence: 84%

“…The integration aims to enhance reliability and extend the transmission distance of the fiber/FSO communication system with the sensor network, reaching remote optical network units (ONUs) and remote FBG sensing systems. CWDM Mux/Demux technology possesses an impressive capacity when it comes to effectively combining or separating signals that are traditionally considered incompatible, as reported by researchers references [23,24]. This remarkable capability of the CWDM Mux/Demux makes it an efficient and reliable technique for seamlessly integrating communication and an FBG-based sensor system.…”

Section: Introductionmentioning

confidence: 96%

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Integrated Sensor-Optics Communication System Using Bidirectional Fiber and FSO Channels and Hybrid Deep Learning Techniques

Dehnaw,

Manie,

et al. 2023

Sensors

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This paper introduces a new bidirectional integration approach that combines fiber sensor/free space optics (FSO) communication using an intensity and wavelength division multiplexer (IWDM) techniques-based long-distance fiber Bragg grating (FBG) sensor strain-sensing system. By implementing coarse wavelength division multiplexing (CWDM), the system achieves the simultaneous transmission of optical communication and fiber optical sensor (FOS) sensing signals, resulting in a highly capable, flexible, and cost-effective solution. The proposed FSO transmission technique addresses complex fiber cable installation concerns with topographical limitations. This bidirectional structure ensures the reliability and stability of the long-distance FBG sensor system, supported by extensive research and experimentation. A hybrid stacked gated recurrent units and long short-term memory (SGRU-LSTM) model is proposed to enhance strain measurement accuracy by predicting and measuring the central wavelength of overlapped strain-sensing FBG sensor signals. The results demonstrate the superiority of the proposed model in peak wavelength detection accuracy. The primary benefit of integrating communication and sensing is the significant reduction in construction costs by eliminating the requirement for two individual fiber optic systems, as the integration allows for a single system to fulfill both functions, resulting in more efficient and cost-effective implementation. Overall, this paper contributes to advancing long-distance FBG sensor systems by integrating fiber sensor/FSO communication and deep learning techniques, improving transmission distance, multiplexing capacity, measurement accuracy, system survivability, and cost-effectiveness.

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Section: Introductionmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 96%