Arrayed waveguide gratings(AWGs) are extensively employed in fiber Bragg grating(FBG) interrogation systems due to their compact size, lightweight nature, and excellent interrogation performance. The resolution and to...
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Arrayed waveguide gratings(AWGs) are extensively employed in fiber Bragg grating(FBG) interrogation systems due to their compact size, lightweight nature, and excellent interrogation performance. The resolution and total measurement range of AWG-based FBG interrogation systems are constrained by the output properties of AWG. We proposed an AWG-based large dynamic range interrogation system. The temperature dependence of AWG is exploited to achieve continuous interrogation. The test results show that the interrogation system has a dynamic range of 28.67 nm, an interrogation accuracy better than 25 pm, and a wavelength resolution of 6 pm.
This article demonstrates a simultaneous detection of multiple radio frequency (RF) information and visualization coding method based on nitrogen vacancy (NV) centers. By applying an external magnetic field gradient t...
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We present a 16-channel thin film lithium niobate optical phased array working at the near-infrared wavelengths. We utilize electro-optic modulation and wavelength tuning to realize beam steering of 24°and 8°...
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In the new industrial revolution, the market demands integrated talents in new engineering fields. To meet the requirements of the new era for cultivating high-level talents in integrated disciplines, this paper takes...
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A holographic near-eye display based on the phase-space synthesis technique is proposed. An optimization-free algorithm for hologram generation is developed. Realistic 3D display accompanied by natural defocus blur ar...
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作者：
Wang, XinZhang, ChengyuanWang, YafeiLi, Xuehua
Key Laboratory of Information and Communication Systems Ministry of Information Industry Key Laboratory of Modern Measurement & Control Technology Beijing China
A LSTM based viewpoint rotation prediction enabled resource-efficient holographic type communication is investigated in EON enabled 6G RAN. The CensNet enhanced PPO is used for feature extraction based DU-CU deploymen...
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We present a one-shot 3D spectral interferometry technique using a digital micromirror device. By encoding the distribution of the spatial light field, this approach enables 3D imaging of step structures within 27 ms....
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In this work, we have developed a hologram encoder using a deep neural network. To effectively train this neural encoder, a novel training dataset composed of three-dimensional (3D) Fourier basis functions is adopted....
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A compact and highly sensitive gas pressure and temperature sensor based on Fabry-Pérot interferometer(FPI) and fiber Bragg grating(FBG) is proposed and demonstrated experimentally in this paper. The theoretical ...
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A compact and highly sensitive gas pressure and temperature sensor based on Fabry-Pérot interferometer(FPI) and fiber Bragg grating(FBG) is proposed and demonstrated experimentally in this paper. The theoretical model for pressure and temperature sensing is established. Building on this foundation, a novel micro silicon cavity sensor structure sensitive to pressure is devised downstream of an FBG. The concept of separate measurement and the mechanisms enhancing pressure sensitivity are meticulously analyzed, and the corresponding samples are fabricated. The experimental results indicate that the pressure sensitivity of the sensor is -747.849 nm/MPa in 0—100 k Pa and its linearity is 99.7% and it maintains good stability in 150 min. The sensor offers the advantages of compact size, robust construction, easy fabrication, and high sensitivity, making it potentially valuable for micro-pressure application.
We present a 16-channel thin film lithium niobate optical phased array working at the near-infrared wavelengths. We utilize electro-optic modulation and wavelength tuning to realize beam steering of 24°and 8°...
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