The integration of high-speed opticalcommunication and distributed sensing could bring intelligent functionalities to ubiquitous optical fibre networks,such as urban structure imaging,ocean seismic detection,and safe...
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The integration of high-speed opticalcommunication and distributed sensing could bring intelligent functionalities to ubiquitous optical fibre networks,such as urban structure imaging,ocean seismic detection,and safety monitoring of underground embedded *** work demonstrates a scheme of integrated sensing and communication in an optical fibre(ISAC-OF)using the same wavelength channel for simultaneous data transmission and distributed vibration *** scheme not only extends the intelligent functionality for optical fibre communicationsystem,but also improves its transmission performance.A periodic linear frequency modulation(LFM)light is generated to act as the optical carrier and sensing probe in PAM4 signal transmission and phase-sensitive optical time-domain reflectometry(Φ-OTDR),*** a 24.5 km fibre transmission,the forward PAM4 signal and the carriercorrespondence Rayleigh backscattering signal are detected and *** results show that the integrated solution achieves better transmission performance(~1.3 dB improvement)and a larger launching power(7 dB enhancement)at a 56 Gbit/s bit rate compared to a conventional PAM4 signal ***,a 4m spatial resolution,4.32-nε/√Hz strain resolution,and over 21 kHz frequency response for the vibration sensing are *** proposed solution offers a new path to further explore the potential of existing or future fibre-optic networks by the convergence of data transmission and status *** addition,such a scheme of using shared spectrum in communication and distributed optical fibre sensing may be used to measure non-linear parameters in coherent opticalcommunications,offering possible benefits for data transmission.
A low Self-noise giant interferometric fiber optic gyroscope system has been built for geophysical rotation sensing. The gyroscope 24-hour stability test shows that sensitivity can reach 1.65 × 10-9 rad/s/√Hz. &...
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We report on a high-precision fiber-optic time transfer system over single optical fiber utilizing the same wavelength in both directions based on bidirectional frequency division multiplexing and cross correlation pr...
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We propose a silicon multi-functional photonic processing chip for multiply-accumulate computation (MAC), which is capable for high-speed data encoding and flexible weight control. Experimental results verify a 6-bit ...
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We propose a silicon multi-functional photonic processing chip for multiply-accumulate computation (MAC), which is capable for high-speed data encoding and flexible weight control. Experimental results verify a 6-bit ...
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A low Self-noise giant interferometric fiber optic gyroscope system has been built for geophysical rotation sensing. The gyroscope 24-hour stability test shows that sensitivity can reach 1.65 × 10-9 rad/s/√Hz. &...
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A four-channel silicon photonic MDM-WDM transmitter chiplet is demonstrated with 4×56-Gbps signaling, based on high-speed MRMs and an equalized dual-mode grating coupler over 1.65 mm2 footprint, indicating signif...
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We propose a coreless fiber-melted ball-lens structure for low-loss interconnection between SMF and NANF. In experiment, we achieved an insertion loss of less than 0.24 dB per connection and a return loss about -43 dB...
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Inorganic micro light-emitting diodes(micro-LEDs)based on II-V compound semiconductors have been widely studied for self-emissive *** chips to applications,integration technology plays an indispensable role in micro-L...
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Inorganic micro light-emitting diodes(micro-LEDs)based on II-V compound semiconductors have been widely studied for self-emissive *** chips to applications,integration technology plays an indispensable role in micro-LED displays.
In this work, we propose a novel phase noise compensation (PNC) method aiming at mitigating impact of the laser phase noise on DAS, by deploying an auxiliary interferometer together with an appropriate two-step compen...
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