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1

Liu, Qiankun, Tom Smy, Ahmad Atieh, Pavel Cheben, Alejandro Sánchez-Postigo, and Winnie N. Ye. "Integrated circular optical phased array." EPJ Web of Conferences 255 (2021): 01004. http://dx.doi.org/10.1051/epjconf/202125501004.

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Анотація:
Existing OPAs are typically based on 2D rectangular arrays or 1D linear arrays. Both approaches present a limited field-of-view (FOV) due to the presence of the grating lobes when the element spacing is larger than λ/2. To address the need for an increased steering range, we propose a new design strategy of an OPA system utilizing a 2D circular phased array, with a substantially increased FOV. We present a circular OPA using a demonstrated antenna element design, with an 820-element array. A steering range ΩSR calculated as a solid angle of 0.51π sr, and an angular beamwidth of 0.22°, was achi
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2

Wang, Zheng, Yibo Yang, Ruiting Wang, et al. "Improved SPGD Algorithm for Optical Phased Array Phase Calibration." Applied Sciences 12, no. 15 (2022): 7879. http://dx.doi.org/10.3390/app12157879.

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Анотація:
A chip-level optical beam steerer is an inevitable choice for next-generation light detection and ranging (LiDAR). The research on optical phased array (OPA) is the most intriguing. However, the complexity of control and calibration speed limit the full potential as the number of channels increases. In this paper, an improved stochastic parallel gradient-descent algorithm combined with the Nesterov accelerated gradient method (NSPGD) is presented and applied in a 512-channel OPA. This algorithm can reduce the phase calibration time of large-scale OPA and demonstrates a better convergence perfo
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3

Yue, Jian, Anqi Cui, Fei Wang, et al. "Design of Monolithic 2D Optical Phased Arrays Heterogeneously Integrated with On-Chip Laser Arrays Based on SOI Photonic Platform." Micromachines 13, no. 12 (2022): 2117. http://dx.doi.org/10.3390/mi13122117.

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Анотація:
In this work, heterogeneous integration of both two-dimensional (2D) optical phased arrays (OPAs) and on-chip laser arrays based on a silicon photonic platform is proposed. The tunable multi-quantum-well (MQW) laser arrays, active switching/shifting arrays, and grating antenna arrays are used in the OPA module to realize 2D spatial beam scanning. The 2D OPA chip is composed of four main parts: (1) tunable MQW laser array emitting light signals in the range of 1480–1600 nm wavelengths; (2) electro-optic (EO) switch array for selecting the desired signal light from the on-chip laser array; (3) E
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4

Nguyen, Anh-Hang, and Hyuk-Kee Sung. "Improving the Performance of Optical Phased Array by Reducing Relative Intensity Noise of Optically Injection-Locked Laser Array." Photonics 9, no. 11 (2022): 868. http://dx.doi.org/10.3390/photonics9110868.

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Анотація:
Relative intensity noise (RIN) is an important factor that determines the performance of optical phased arrays (OPA) that are configured using semiconductor lasers as light emission sources. This study proposes a method of improving the optical signal-to-noise ratio (OSNR) of an OPA by reducing the RIN and using high coherence of optically injection-locked (OIL) laser arrays. We numerically demonstrated a laser RIN reduction of 22.7 dB by the OIL laser compared to a free-running laser. We achieved an OPA RIN reduction of 13.2 dB by combining the coherent outputs with the uncorrelated noise of
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5

Lei, Yufang, Lingxuan Zhang, Yulong Xue, et al. "Suppressing grating lobes of large-aperture optical phased array with circular array design." Applied Optics 62, no. 15 (2023): 4110. http://dx.doi.org/10.1364/ao.488916.

Повний текст джерела
Анотація:
An optical phased array (OPA), especially a two-dimensional (2D) OPA, suffers from the trade-off among steering range, beam width, and the number of antennas. Aperiodic 2D array designs currently aimed to reduce the number of antennas and reduce grating lobes within a wide range fall short when an aperture approaches millimeter size. A circular OPA design is proposed to address this issue. The circular design substantially reduces the number of antennas while achieving the same wide steering range and narrow beam width of optimized aperiodic 2D OPA designs. Its efficient suppression of grating
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6

Chen, Jingye, Shi Zhao, Wenlei Li, Xiaobin Wang, Xiang’e Han, and Yaocheng Shi. "Silicon Optical Phased Array Hybrid Integrated with III–V Laser for Grating Lobe-Free Beam Steering." Photonics 11, no. 10 (2024): 952. http://dx.doi.org/10.3390/photonics11100952.

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Анотація:
A silicon photonics-based optical phased array (OPA) is promising for realizing solid-state and miniature beam steering. In our work, a 1 × 16 silicon optical phased array (OPA) hybrid integrated with a III–V laser is proposed and demonstrated. The III–V laser chip is vertically coupled with a silicon OPA chip based on a chirped grating coupler with a large bandwidth. The coupling efficiency reaches up to 90% through utilizing the metal reflector underneath the silicon oxide layer. The one-dimensional antenna array comprising silicon waveguides with half-wavelength spacing enables beam steerin
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7

Wang, Zhicheng, Junbo Feng, Haitang Li, et al. "Ultra-Compact and Broadband Nano-Integration Optical Phased Array." Nanomaterials 13, no. 18 (2023): 2516. http://dx.doi.org/10.3390/nano13182516.

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Анотація:
The on-chip nano-integration of large-scale optical phased arrays (OPAs) is a development trend. However, the current scale of integrated OPAs is not large because of the limitations imposed by the lateral dimensions of beam-splitting structures. Here, we propose an ultra-compact and broadband OPA beam-splitting scheme with a nano-inverse design. We employed a staged design to obtain a T-branch with a wavelength bandwidth of 500 nm (1300–1800 nm) and an insertion loss of −0.2 dB. Owing to the high scalability and width-preserving characteristics, the cascaded T-branch configuration can signifi
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8

Nguyen, Anh-Hang, Jun-Hyung Cho, and Hyuk-Kee Sung. "Theoretical Demonstration of Security Improvement of Optical Phased Array Based on Optically Injection-Locked Lasers." Photonics 8, no. 11 (2021): 469. http://dx.doi.org/10.3390/photonics8110469.

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Анотація:
The high security of optical phased array (OPA) signals is an important requirement for OPA-based optical wireless communication (OWC). We propose a method for improving the security of OPA-based OWC systems using optically injection-locked (OIL) semiconductor lasers. We theoretically demonstrate the amplitude and phase modulation of OIL-OPA elements by controlling the injection-locking parameters of the OIL lasers. When a Taylor window function is applied as the amplitude profile of the OPA transmitter, the sidelobe level decreases by 22 dB and the unsecured distance reduces 10 times compared
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9

Liu, Qiankun, Daniel Benedikovic, Tom Smy, Ahmad Atieh, Pavel Cheben, and Winnie N. Ye. "Circular Optical Phased Arrays with Radial Nano-Antennas." Nanomaterials 12, no. 11 (2022): 1938. http://dx.doi.org/10.3390/nano12111938.

Повний текст джерела
Анотація:
On-chip optical phased arrays (OPAs) are the enabling technology for diverse applications, ranging from optical interconnects to metrology and light detection and ranging (LIDAR). To meet the required performance demands, OPAs need to achieve a narrow beam width and wide-angle steering, along with efficient sidelobe suppression. A typical OPA configuration consists of either one-dimensional (1D) linear or two-dimensional (2D) rectangular arrays. However, the presence of grating sidelobes from these array configurations in the far-field pattern limits the aliasing-free beam steering, when the a
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10

Zhao, Shi, Jingye Chen, and Yaocheng Shi. "All-Solid-State Beam Steering via Integrated Optical Phased Array Technology." Micromachines 13, no. 6 (2022): 894. http://dx.doi.org/10.3390/mi13060894.

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Анотація:
Light detection and ranging (LiDAR), combining traditional radar technology with modern laser technology, has much potential for applications in navigation, mapping, and so on. Benefiting from the superior performance, an all-solid-state beam steering realized by integrated optical phased array (OPA) is one of the key components in the LiDAR system. In this review, we first introduce the basic principle of OPA for beam steering. Then, we briefly review the detailed advances of different solutions such as micro-electromechanical system OPA, liquid crystal OPA, and metasurface OPA, where our mai
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11

Yi, Yasha, Dachuan Wu, Venus Kakdarvishi, Bowen Yu, Yating Zhuang, and Alireza Khalilian. "Photonic Integrated Circuits for an Optical Phased Array." Photonics 11, no. 3 (2024): 243. http://dx.doi.org/10.3390/photonics11030243.

Повний текст джерела
Анотація:
Optical phased arrays (OPAs) are renowned for their exceptional ability to manipulate and direct light beams, positioning them as an ideal choice for solid-state light detection and ranging (LiDAR) technologies. This review provides a comprehensive examination of the current research landscape for photonic integrated circuit (PIC)-based OPAs. It begins by addressing the critical design elements at the component level necessary for optimal functionality. This review then delves into phase calibration techniques and the overarching architecture of OPAs. It concludes by emphasizing the innovative
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12

Nguyen, Anh Hang, Jun-Hyung Cho, Ho-Jun Bae, and Hyuk-Kee Sung. "Side-lobe Level Reduction of an Optical Phased Array Using Amplitude and Phase Modulation of Array Elements Based on Optically Injection-Locked Semiconductor Lasers." Photonics 7, no. 1 (2020): 20. http://dx.doi.org/10.3390/photonics7010020.

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Анотація:
The side-lobe level (SLL) in optical phased array (OPA) systems should be reduced to ensure their high performance. We investigate theoretically the performance of an OPA based on optically injection-locked (OIL) semiconductor lasers. The phase and amplitude of the OIL laser are modulated by controlling the injection-locking parameters to reduce the SLL as well as to achieve beam steering. We successfully achieved an SLL reduction of >16 dB when compared with the uniform amplitude profile based on the application of the Taylor window function profile to the injection-locked OPA elements. Th
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13

Kim, Youngin, Hyeonho Yoon, Jong-Bum You, Minchul Kim, and Hyo-Hoon Park. "Wide-Angle Beam-Steering Using an Optical Phased Array with Non-Uniform-Width Waveguide Radiators." Photonics 7, no. 3 (2020): 56. http://dx.doi.org/10.3390/photonics7030056.

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Анотація:
We demonstrate wide-angle beam-steering using an optical phased array (OPA) with waveguide radiators designed with non-uniform widths to reduce the crosstalk between waveguides. The OPA consists of a silicon based 1 × 16 array of electro-optic phase shifters and end-fire radiators. The 16 radiators were configured with four different widths and a half-wavelength spacing, which can remove the higher-order diffraction patterns in free space. The waveguides showed a low crosstalk of −10.2 dB at a wavelength of 1540 nm. With phase control, the OPA achieved wide beam-steering of over ±80° with a si
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14

Xue, Yulong, Qihao Zhang, Yangming Ren, Yufang Lei, Xiaochen Sun, and Lingxuan Zhang. "Two-dimensional single-lobe Si photonic optical phased array with minimal antennas using a non-uniform large spacing array design." Applied Optics 61, no. 24 (2022): 7158. http://dx.doi.org/10.1364/ao.463542.

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Анотація:
We report a two-dimensional Si photonic optical phased array (OPA) optimized for a large optical aperture with a minimal number of antennas while maintaining single-lobe far field. The OPA chip has an optical aperture of ∼ 200 µ m by 150 µm comprising a 9 × 9 antenna array. The two-dimensional spacings between these antennas are much larger than the wavelength and are highly non-uniform optimized by the genetic deep learning algorithm. The phase of each antenna is independently tunable by a thermo-optical phase shifter. The experimental results validate the design and exhibit a 0.39 ∘ × 0.41 ∘
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15

Wang, Jinyu, Ruogu Song, Xinyu Li, et al. "Beam Steering Technology of Optical Phased Array Based on Silicon Photonic Integrated Chip." Micromachines 15, no. 3 (2024): 322. http://dx.doi.org/10.3390/mi15030322.

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Анотація:
Light detection and ranging (LiDAR) is widely used in scenarios such as autonomous driving, imaging, remote sensing surveying, and space communication due to its advantages of high ranging accuracy and large scanning angle. Optical phased array (OPA) has been studied as an important solution for achieving all-solid-state scanning. In this work, the recent research progress in improving the beam steering performance of the OPA based on silicon photonic integrated chips was reviewed. An optimization scheme for aperiodic OPA is proposed.
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16

Mohammad, Tarek, Siyuan He, and Ridha Ben Mrad. "Analysis of Optical Diffraction Profiles Created by Phase-Modulating MEMS Micromirror Arrays." Micromachines 12, no. 8 (2021): 891. http://dx.doi.org/10.3390/mi12080891.

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Анотація:
This paper presents modeling and analysis of light diffraction and light-intensity modulation performed by an optical phased array (OPA) system based on metal-coated silicon micromirrors. The models can be used in the design process of a microelectromechanical system (MEMS)-based OPA device to predict its optical performance in terms of its field of view, response, angular resolution, and long-range transmission. Numerical results are derived using an extended model for the 1st-order diffracted light intensity modulation due to phase shift. The estimations of the optical characteristics are ut
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17

He, Xinyu, Tao Dong, Jingwen He, and Yue Xu. "A Design Approach of Optical Phased Array with Low Side Lobe Level and Wide Angle Steering Range." Photonics 8, no. 3 (2021): 63. http://dx.doi.org/10.3390/photonics8030063.

Повний текст джерела
Анотація:
In this paper, a new design approach of optical phased array (OPA) with low side lobe level (SLL) and wide angle steering range is proposed. This approach consists of two steps. Firstly, a nonuniform antenna array is designed by optimizing the antenna spacing distribution with particle swarm optimization (PSO). Secondly, on the basis of the optimized antenna spacing distribution, PSO is further used to optimize the phase distribution of the optical antennas when the beam steers for realizing lower SLL. Based on the approach we mentioned, we design a nonuniform OPA which has 1024 optical antenn
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18

Wang, Xiangru, Liang Wu, Man Li, Shuanghong Wu, Jiyang Shang, and Qi Qiu. "Theoretical and Experimental Demonstration on Grating Lobes of Liquid Crystal Optical Phased Array." International Journal of Optics 2016 (2016): 1–6. http://dx.doi.org/10.1155/2016/7175809.

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Анотація:
High deflection efficiency is one of the urgent requirements for practical liquid crystal optical phased array (LC-OPA). In this paper, we demonstrate that high order grating lobes induced from fringe effect are the most important issue to reduce occupation of main lobe. A novel theoretical model is developed to analyze the feature of grating lobes when the device of LC-OPA is working on the scheme of variable period grating (VPG) or variable blazing grating (VBG). Subsequently, our experiments present the relevant results showing a good agreement with the theoretical analysis.
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19

Nguyen, Anh-Hang, Hyo-Sang Jeong, Hyungsik Shin, and Hyuk-Kee Sung. "Theoretical Study on Dual-Function Optical Phased Array of LiDAR and Optical Wireless Communication Based on Optically Injection-Locked Semiconductor Lasers." Photonics 10, no. 5 (2023): 498. http://dx.doi.org/10.3390/photonics10050498.

Повний текст джерела
Анотація:
Light detection and ranging (LiDAR) and optical wireless communication (OWC) are in high demand and rapidly developing owing to the explosive growth of smart systems that require automotive and mobile devices. Optical phased arrays (OPA) have become a key technology in LiDAR and OWC owing to their nonmechanical beam steering capabilities. However, using separate LiDAR and OWC platforms in one system creates problems, such as spectrum congestion, resource consumption, and high complexity. We propose a dual-function OPA that enables LiDAR and OWC to function on a single platform based on the sim
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20

Chi, Hsun-Yuan, Wei Hong, Hsuan Lai, Shih-Hsiang Hsu, and Che-Chang Chang. "Silicon Ribbon-Based Dual-Beam Optical Phased Array with Low Crosstalk and Large FoV." Applied Sciences 12, no. 1 (2022): 505. http://dx.doi.org/10.3390/app12010505.

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Анотація:
In this paper, a silicon ribbon (SR)-based microstructure is developed and added to a 32-channel optical phased array (OPA) to reduce the crosstalk between the antennas of grating waveguides. The spacing between the chirped grating antennas can be as close as 600 nm to effectively improve the field of view (FoV) of the OPA in the horizontal direction to 95 degrees. This SR-based approach substantially reduces the side lobe by 10 dB, effectively suppressing the noise and increasing the main lobe by 6 dB and considerably expanding the grating length with linear energy decay. The full width at th
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21

Benedikovic, Daniel, Qiankun Liu, Alejandro Sanchez-Postigo, et al. "Integrated optical phased arrays with circular architecture on a silicon platform." EPJ Web of Conferences 266 (2022): 01002. http://dx.doi.org/10.1051/epjconf/202226601002.

Повний текст джерела
Анотація:
Optical phased arrays (OPAs) are now at the forefront of photonic research as a key beam steering technology for myriad of photonic applications, including in light detection and ranging (LIDAR), communications, and metrology, among others. Integrated OPAs with narrow beam widths and wide-angle steering are in critical need, especially for LIDARs in autonomous vehicle, drone and airplane navigation, or satellites. In this work, we numerically study the performances of OPAs having a circular layout arrangement. Compared to recently available solutions with 1D linear or 2D rectangular arrays, th
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22

Yoon, Hyeonho, Hyun-Woo Rhee, Nam-Hyun Kwon, et al. "Demonstration of Two-Dimensional Beam Steering through Wavelength Tuning with One-Dimensional Silicon Optical Phased Array." Photonics 9, no. 11 (2022): 812. http://dx.doi.org/10.3390/photonics9110812.

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Анотація:
We demonstrate two-dimensional beam steering through wavelength control using a one-dimensional optical phased array (OPA) in which a path difference is built up in each channel to allocate a phase delay sequentially. Prior to the beam steering through wavelength tuning, phase initialization was performed to form a single beam using electro-optic p-i-n phase shifters to compensate for the phase error due to fabrication imperfections. With a 79.6 μm path difference in the phase-feeding lines and a 2 μm pitch in the grating radiators, we achieved a continuous transversal steering of about 46° th
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23

Wang, Chenxi, Hongliang Li, Jinke Li, and Sang-Shin Lee. "Compact On-Chip Metalens-Assisted Optical Switch Enabling Efficient and Scalable Beam Switching." Photonics 11, no. 7 (2024): 611. http://dx.doi.org/10.3390/photonics11070611.

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Анотація:
We propose and demonstrate an integrated optical switch that leverages an optical phased array (OPA) and an on-chip metalens, highlighting its potential for efficient and scalable beam switching across multiple ports within a compact footprint. The device consists of an input multimode interference (MMI) coupler, a phase modulator (PM) array, a beam-transformation region featuring an on-chip metalens layer, and a tapered waveguide array serving as the output ports. The PM array, engineered to effectively manipulate multiple phases for a waveguide array using a single voltage, utilizes metal st
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24

Shekel, Eyal. "Dynamic beam shaping with coherent beam combining." PhotonicsViews 21, no. 3 (2024): 26–29. http://dx.doi.org/10.1002/phvs.202400023.

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Анотація:
AbstractCoherent beam combining (CBC) is a method of enhancing laser power. It has recently transitioned to industrial applications, unveiling new possibilities in laser technology. CBC merges multiple laser channels from a single source, controlling their phase to create constructive or destructive interference. The optical phased array (OPA) and filled aperture methods exemplify CBC's advancements, enabling dynamic and precise beam manipulation. This technological evolution opens avenues for versatile applications in various industries, significantly advancing our capability to harness laser
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25

Wei, Jinmei, Yan Li, Yuejun Zhang, et al. "High-Directionality Silicon Nitride Antenna Based on Distributed Bragg Reflector for Optical Phased Array." Photonics 10, no. 8 (2023): 871. http://dx.doi.org/10.3390/photonics10080871.

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Анотація:
Optical phased arrays (OPAs) have great potential in the fields of integrated solid-state light detection and ranging. The ranging distance of an OPA can be further enlarged by improving the directionality of the grating antenna. A high-directionality silicon nitride grating antenna with a distributed Bragg reflector (DBR) is proposed. The DBR consists of a stack of silicon nitride and silicon dioxide layers, which are utilized as the bottom reflectors to further reduce downward radiation. In a simulation, the directionality of the antenna exceeded 71.6% within the wavelength range of 1420–174
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26

Sun, Xiaochen, Lingxuan Zhang, Qihao Zhang, and Wenfu Zhang. "Si Photonics for Practical LiDAR Solutions." Applied Sciences 9, no. 20 (2019): 4225. http://dx.doi.org/10.3390/app9204225.

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Анотація:
In the article the authors discuss light detection and ranging (LiDAR) for automotive applications and the potential roles Si photonics can play in practice. The authors review published research work on Si photonics optical phased array (OPA) and other relevant devices in the past decade with in-depth technical analysis with respect to practical system design considerations. The commercialization status of certain LiDAR technologies is briefly introduced.
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27

Wang, Yue, Yu Wang, Guohui Yang, et al. "All-Solid-State Optical Phased Arrays of Mid-Infrared Based Graphene-Metal Hybrid Metasurfaces." Nanomaterials 11, no. 6 (2021): 1552. http://dx.doi.org/10.3390/nano11061552.

Повний текст джерела
Анотація:
Optical phased arrays (OPAs) are essential optical elements in applications that require the ability to manipulate the light-wavefront, such as beam focusing and light steering. To miniaturize the optical components, active metasurfaces, especially graphene metasurfaces, are used as competent alternatives. However, the metasurface cannot achieve strong resonance effect and phase control function in the mid-infrared region only relying on a single-layer graphene. Here we present a graphene-metal hybrid metasurface that can generate a specific phase or a continuous sweep in the range of a 275°-b
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28

Wang, Peiyang, Jialin Ai, Wenbin Yan, and Yudian An. "Generation Method Of Laser Beam Riding Guidance Information Field Based On Optical Phased Array." MATEC Web of Conferences 232 (2018): 04045. http://dx.doi.org/10.1051/matecconf/201823204045.

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Анотація:
Laser beam riding guidance was a new concept of guidance technology put forward in 1970s. It is widely used in various laser guided weapon systems. The technology of generating information field in the laser beam riding guidance system is the key of the system. However, the traditional laser beam riding guidance technology needs complex mechanical devices for the generation of guidance information field, optical zoom control and so on. There are many problems, such as the complex structure and it is difficult to guarantee the precision. In this paper, Optical Phased Array (OPA) is used to expl
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29

Lei, Yufang, Lingxuan Zhang, Zhiyuan Yu, Yulong Xue, Yangming Ren, and Xiaochen Sun. "Si Photonics FMCW LiDAR Chip with Solid-State Beam Steering by Interleaved Coaxial Optical Phased Array." Micromachines 14, no. 5 (2023): 1001. http://dx.doi.org/10.3390/mi14051001.

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Анотація:
LiDAR has attracted increasing attention because of its strong anti-interference ability and high resolution. Traditional LiDAR systems rely on discrete components and face the challenges of high cost, large volume, and complex construction. Photonic integration technology can solve these problems and achieve high integration, compact dimension, and low-cost on-chip LiDAR solutions. A solid-state frequency-modulated continuous-wave LiDAR based on a silicon photonic chip is proposed and demonstrated. Two sets of optical phased array antennas are integrated on an optical chip to form a transmitt
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30

Lee, Eun-Su, Kwon-Wook Chun, Jinung Jin, and Min-Cheol Oh. "Frequency Response of Thermo-Optic Phase Modulators Based on Fluorinated Polyimide Polymer Waveguide." Polymers 14, no. 11 (2022): 2186. http://dx.doi.org/10.3390/polym14112186.

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Анотація:
Polymer waveguide phase modulators exhibit stable low-power phase modulation owing to their exceptional thermal confinement and high thermo-optic effect, and thus, have the merit of thermal isolation between channels, which is crucial for an optical phased array (OPA) beam scanner device. In this work, a waveguide phase modulator was designed and fabricated based on a high-refractive-index fluorinated polyimide. The propagation loss of the polyimide waveguide and the temporal response of the phase modulator were characterized. Moreover, the transfer function of the phase modulator including mu
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31

Calò, Giovanna, Gaetano Bellanca, Franco Fuschini, et al. "4 × 4 Integrated Switches Based on On-Chip Wireless Connection through Optical Phased Arrays." Photonics 10, no. 4 (2023): 367. http://dx.doi.org/10.3390/photonics10040367.

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Анотація:
Optical Wireless Networks on-Chip are an emerging technology recently proposed to improve the interconnection between different processing units in densely integrated computing architectures. In this work, we propose a 4 × 4 optical wireless switch (OWS) based on optical phased arrays (OPAs) for broadband reconfigurable on-chip communication. The OPA and OWS design criteria are reported. Moreover, the performances of the OWS are analyzed and optimized considering the electromagnetic propagation in on-chip multilayer structures, with different thicknesses of the cladding layer. The effect on th
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32

Qin, Siyi, Chen Liu, Jinyao Wang, et al. "Liquid crystal-optical phased arrays (LC-OPA)-based optical beam steering with microradian resolution enabled by double gratings." Applied Optics 58, no. 15 (2019): 4091. http://dx.doi.org/10.1364/ao.58.004091.

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33

NIU Qi-feng, 牛启凤, 王春阳 WANG Chun-yang, 张广平 ZHANG Guang-ping, and 史红伟 SHI Hong-wei. "Solution of liquid crystal phased array director and its beam deflection." Optics and Precision Engineering 26, no. 12 (2018): 2894–901. http://dx.doi.org/10.3788/ope.20182612.2894.

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34

LIU Gui-xiong, 刘桂雄, 唐文明 TANG Wen-ming, and 谭大基 TAN Da-ji. "Focusing time delay of ultrasonic phased array based on multistage half-band filter." Optics and Precision Engineering 22, no. 6 (2014): 1571–76. http://dx.doi.org/10.3788/ope.20142206.1571.

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35

TONG, Xin, Youyang QU, Jiebing LIU, Xinyu SONG, and Lu DAI. "Sunlight avoidance planning method for data transmission with phased array of low-earth orbit optical satellites." Optics and Precision Engineering 32, no. 6 (2024): 822–32. http://dx.doi.org/10.37188/ope.20243206.0822.

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36

Xin, Yifan, Wenyuan Liao, Lei Yu, et al. "Analysis of the Influence of Fabrication Errors on the Far-Field Performance of Si and Si3N4 Antennas." Photonics 11, no. 1 (2024): 81. http://dx.doi.org/10.3390/photonics11010081.

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Анотація:
Antennas are important components in optical phased arrays. However, their far-field performance deteriorates when random phase noise is introduced because of fabricating errors. For the first time, we use a finite-difference time-domain solution to quantitatively analyze the far-field characteristics of Si and Si3N4 antennas considering process errors. Under rough surface conditions based on a fishbone structure, we find that the quality of the main lobe of the Si antenna deteriorates badly, with −0.87 dB and −0.51 dB decreases in the sidelobe level and 5.78% and 3.74% deteriorations in the m
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37

Sanyal, G. S. "Optical Phased Array." IETE Journal of Research 45, no. 5-6 (1999): 355–58. http://dx.doi.org/10.1080/03772063.1999.11416121.

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38

Montoya, Juan, Antonio Sanchez-Rubio, Robert Hatch, and Harold Payson. "Optical phased-array ladar." Applied Optics 53, no. 31 (2014): 7551. http://dx.doi.org/10.1364/ao.53.007551.

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39

McManamon, P. F., T. A. Dorschner, D. L. Corkum, et al. "Optical phased array technology." Proceedings of the IEEE 84, no. 2 (1996): 268–98. http://dx.doi.org/10.1109/5.482231.

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40

Fukui, Taichiro, Ryota Tanomura, Kento Komatsu, et al. "Non-redundant optical phased array." Optica 8, no. 10 (2021): 1350. http://dx.doi.org/10.1364/optica.437453.

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41

Bowman, David J., Malcolm J. King, Andrew J. Sutton, et al. "Internally sensed optical phased array." Optics Letters 38, no. 7 (2013): 1137. http://dx.doi.org/10.1364/ol.38.001137.

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42

Zheng, Yingjing, Hooi Sing Lee, Sascha Meyne, Alexander Yu Petrov, and Manfred Eich. "Waveguide-Based Optical Phased Array." IEEE Photonics Technology Letters 25, no. 18 (2013): 1826–28. http://dx.doi.org/10.1109/lpt.2013.2276746.

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43

Yu, Lei, Pengfei Ma, Guangzhen Luo, et al. "Adoption of large aperture chirped grating antennas in optical phase array for long distance ranging." Optics Express 30, no. 15 (2022): 28112. http://dx.doi.org/10.1364/oe.464358.

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Анотація:
Optical phased array can be widely used in many fields benefiting from its superior performance. We designed and fabricated chirped grating antennas and uniform grating antennas for the optical phased array. The effective aperture of the chirped grating antennas is about twice that of the uniform grating antennas. The chirped grating optical phased array can receive the reflected signal of the object at a distance of 100 m, while the uniform grating optical phased array can only receive 50 m under the same conditions. Additionally, a ranging distance of 25 m is achieved when two chirped gratin
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44

Fukui, Taichiro, Ryota Tanomura, Kento Komatsu, et al. "Non-redundant optical phased array: erratum." Optica 9, no. 2 (2022): 159. http://dx.doi.org/10.1364/optica.453419.

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45

Ren, Yangming, Lingxuan Zhang, Wei Zhao, et al. "Compact 2D serpentine optical phased array." Applied Optics 60, no. 24 (2021): 7158. http://dx.doi.org/10.1364/ao.431942.

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46

Tsui, Jing M., Charles Thompson, and Jeffrey M. Roth. "Optical phased array power penalty analysis." Optics Express 15, no. 8 (2007): 5179. http://dx.doi.org/10.1364/oe.15.005179.

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47

Shi, Jianru. "Broadband optical phased-array beam steering." Optical Engineering 44, no. 12 (2005): 128004. http://dx.doi.org/10.1117/1.2149374.

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48

Wang, Y., and M. C. Wu. "An Optical Phased Array for LIDAR." Journal of Physics: Conference Series 772 (November 2016): 012004. http://dx.doi.org/10.1088/1742-6596/772/1/012004.

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49

Zuev, V. S., and G. Ya Zueva. "Nanodipoles for an optical phased array." Journal of Russian Laser Research 28, no. 3 (2007): 272–78. http://dx.doi.org/10.1007/s10946-007-0016-5.

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50

Vidal, B., T. Mengual, and J. Martí. "Fast Optical Beamforming Architectures for Satellite-Based Applications." Advances in Optical Technologies 2012 (October 15, 2012): 1–5. http://dx.doi.org/10.1155/2012/385409.

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Анотація:
Photonic technology offers an alternative implementation for the control of phased array antennas providing large time bandwidth products and low weight, flexible feeding networks. Measurements of an optical beamforming network for phased array antennas with fast beam steering operation for space scenarios are presented. Experimental results demonstrate fast beam steering between 4 and 8 GHz without beam squint.
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