Ghost imaging LiDAR via sparsity constraints using push-broom scanning

Ma, Shuang; Liu, Zhentao; Wang, Chenglong; Hu, Chenyu; Li, Enrong; Gong, Wenlin; Tong, Zhishen; Wu, Jiang; Shen, Xia; Han, Shensheng

doi:10.1364/oe.27.013219

Cited by 35 publications

(19 citation statements)

References 34 publications

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“…Quantum entanglement possesses unique characteristics within the maximum entangled state of all degrees of freedom, and perform quantum dense coding [10], ghost imaging [11], quantum teleportation [12], [13], energy-efficient and low-latency communication and computation, and other important applications [14], [15]. Quantum information processing based on entanglement photon pairs can achieve quantum key distribution (QKD), which has outstanding features of large capacity and strong confidentiality.…”

Section: Development Of Intelligent Iov Is Based On Communication Tecmentioning

confidence: 99%

Hybrid Entangled States With Multi-Degree of Freedom and High Purity for Internet of Vehicles

Guo

Wang

et al. 2020

IEEE Access

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The development of intelligent Internet of vehicles (IoV) is based on communication technology, especially the quantum communication of hybrid entangled states based on orbital angular momentum (OAM). The quantum key distribution (QKD) method is demonstrated using hybrid entangled states with multi-degree of freedom and high purity based on OAM. First, the polarization entangled photon pairs are produced by two type I BBO crystals by means of spontaneous parametric down-conversion (SPDC). The polarization-OAM hybrid entangled states are created by q-plate (QP) to realize QKD. It is found that the polarization entangled photon pairs have the characteristics of OAM. A single mode fiber (SMF) is proposed to filter the topological charge non-zero photons and purify the polarization entangled photon pairs. Then the purification setup with M-Z interferometer and beam rotator (BR) is presented which can purify the polarization-OAM hybrid entangled states. The high purity polarization-OAM hybrid entangled states are implemented, and the QP conversion rate of 3 secondary feedbacks is 99.84% theoretically. Analysis indicates that precise purity polarization-OAM hybrid entangled state can increase the fidelity of information and improve the anti-interference ability in this program without mutually unbiased bases (MUBs). The photon utilization rate, energy-efficient and low-latency communication can be greatly improved by using the OAM carrying information. INDEX TERMS Internet of vehicles (IoV), low-latency, orbital angular momentum (OAM), high purity, hybrid entanglement, coincidence measurement.

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Section: Development Of Intelligent Iov Is Based On Communication Tecmentioning

confidence: 99%

Hybrid Entangled States With Multi-Degree of Freedom and High Purity for Internet of Vehicles

Guo

Wang

et al. 2020

IEEE Access

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“…INGLE-PIXEL imaging has gained growing attention recently [1][2][3][4][5][6][7][8][9][10] and has been successfully implemented in numerous applications [9], including multi-spectral imaging [10,11], light-detection-and-ranging (LiDAR) [12][13][14], ophthalmoscope [15], terahertz imaging [16,17], threedimensional (3D) imaging [18][19][20], and flow cytometry [21]. By using pseudo-random speckle illumination patterns to image the target, it provides several advantages compared with the beam-scanning method, such as the reduced number of illuminations with the help of the compressed sensing algorithm [22][23][24] and robustness against background noises.…”

Section: Introductionmentioning

confidence: 99%

Single-Pixel Imaging Using Carrier-Depletion Optical Phased Array With Reduced Phase Shift Requirement

et al. 2021

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The optical-phased array (OPA) has gained special interest in recent years as a high-speed and compact imaging device. While large-scale OPAs have been demonstrated in singlepixel imaging, the complexity of the driver circuit is becoming a crucial problem as the number of phase shifters increases. Here, we investigate the phase shift requirement of OPA for single-pixel imaging and demonstrate, for the first time, that full 2 phase shifts are not mandatory to generate a set of illumination patterns with a sufficient degree of randomness required to reconstruct the image. Using a silicon photonic OPA chip with 128 carrierdepletion-based phase shifters, we experimentally confirm this property by successfully retrieving an image under a maximum phase shift of only 1.5 without affecting the quality of the image. Consequently, the input voltage can be reduced significantly. Since the carrier-depletion phase shifters generally require high driving voltages, this finding paves the way to high-speed OPA-based imaging with a minimum device requirement.

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“…In recent years, ghost imaging with pseudothermal light sources has been investigated extensively [13][14][15][16] to overcome the limitations of image quality, which depends on detection contrast. Many strategies significantly improve the image quality in pseudothermal ghost imaging.…”

Section: Introductionmentioning

confidence: 99%

Improving the Contrast of Pseudothermal Ghost Images Based on the Measured Signal Distribution of Speckle Fields

2021

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In this study, we examine the quality of microscale ghost images as a function of the measured histographic signal distribution of the speckle fields from a nonuniform pseudothermal light source. This research shows that the distribution of the detected signal level on each pixel of the camera plays a significant role in improving the contrast-to-noise ratio (CNR) of pseudothermal ghost imaging. To our knowledge, the scaling of CNR with different pixel intensity distributions of the speckle fields is observed for the first time in the field of pseudothermal microscale ghost imaging. The experimental observations are in very good agreement with numerical analysis. Based on these findings, we can predict the settings for light sources that will maximize the CNR of microscale ghost images.

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Ghost imaging LiDAR via sparsity constraints using push-broom scanning

Cited by 35 publications

References 34 publications

Hybrid Entangled States With Multi-Degree of Freedom and High Purity for Internet of Vehicles

Hybrid Entangled States With Multi-Degree of Freedom and High Purity for Internet of Vehicles

Single-Pixel Imaging Using Carrier-Depletion Optical Phased Array With Reduced Phase Shift Requirement

Improving the Contrast of Pseudothermal Ghost Images Based on the Measured Signal Distribution of Speckle Fields

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