Ma Xi, Weigang Zhao, Xiangang Song, Duan Bo, Qinggui Tan
The rapid development of radar technology requires RF transmitters with high working frequency, broad tuning bandwidth, flexible reconfigurability, and the ability of generating large time-bandwidth product signals. In this paper, we reviewed the main architecture and research status of high-frequency, broadband, multi-format radar waveform generation technology based on optical frequency combs (OFCs) in the context of microwave photonics, and we highlighted the technical route and the main problems that exist for the purpose of practical engineering applications. The main challenges and development trends of microwave photonic radar RF front-end based on optical frequency comb in future applications are also presented.
{"title":"High-frequency broadband radar signal generation based on optical frequency comb","authors":"Ma Xi, Weigang Zhao, Xiangang Song, Duan Bo, Qinggui Tan","doi":"10.1117/12.3005263","DOIUrl":"https://doi.org/10.1117/12.3005263","url":null,"abstract":"The rapid development of radar technology requires RF transmitters with high working frequency, broad tuning bandwidth, flexible reconfigurability, and the ability of generating large time-bandwidth product signals. In this paper, we reviewed the main architecture and research status of high-frequency, broadband, multi-format radar waveform generation technology based on optical frequency combs (OFCs) in the context of microwave photonics, and we highlighted the technical route and the main problems that exist for the purpose of practical engineering applications. The main challenges and development trends of microwave photonic radar RF front-end based on optical frequency comb in future applications are also presented.","PeriodicalId":298662,"journal":{"name":"Applied Optics and Photonics China","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138995374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xutao Zhang, Jianfeng Bao, Feng Yang, Ziyang Li, Dengcai Yang
In recent years, lithium niobate (LiNbO3) has been widely used in optical fiber communication, quantum communication, fiber optic gyroscopes and microwave photonics as an important photonic material. Lithium niobate on insulator (LNOI) has attracted much attention as an emerging photonic integrated material. Compared with traditional lithium niobate crystal materials, LNOI materials have the ability to realize miniaturized photonic devices with higher efficiency and lower energy consumption, thus showing great potential in the design and manufacture of photonic devices. However, due to the high hardness and inactive chemical properties of LNOI materials, the traditional semiconductor process cannot process its nanostructures, which limits the optimization of the key performance indicators of the device, thus hindering the further development of high-quality and miniaturized LNOI optoelectronic functional devices. In the preparation process of the LNOI waveguide, the sidewall of the ridge waveguide formed by etching is often not flat enough, which may lead to an increase in light scattering loss. To solve this problem, surface polishing technology, especially chemical mechanical polishing (CMP), has become an important method. Polishing the surface of the LNOI device by CMP can reduce the roughness of the waveguide sidewall after etching, improve the performance and power transmission efficiency of the device, and ensure that the sidewall surface is flat and smooth to achieve the minimum optical coupling loss and maximum power transmission.
{"title":"Experimental study on chemical mechanical polishing of LNOI surfaces","authors":"Xutao Zhang, Jianfeng Bao, Feng Yang, Ziyang Li, Dengcai Yang","doi":"10.1117/12.3004109","DOIUrl":"https://doi.org/10.1117/12.3004109","url":null,"abstract":"In recent years, lithium niobate (LiNbO3) has been widely used in optical fiber communication, quantum communication, fiber optic gyroscopes and microwave photonics as an important photonic material. Lithium niobate on insulator (LNOI) has attracted much attention as an emerging photonic integrated material. Compared with traditional lithium niobate crystal materials, LNOI materials have the ability to realize miniaturized photonic devices with higher efficiency and lower energy consumption, thus showing great potential in the design and manufacture of photonic devices. However, due to the high hardness and inactive chemical properties of LNOI materials, the traditional semiconductor process cannot process its nanostructures, which limits the optimization of the key performance indicators of the device, thus hindering the further development of high-quality and miniaturized LNOI optoelectronic functional devices. In the preparation process of the LNOI waveguide, the sidewall of the ridge waveguide formed by etching is often not flat enough, which may lead to an increase in light scattering loss. To solve this problem, surface polishing technology, especially chemical mechanical polishing (CMP), has become an important method. Polishing the surface of the LNOI device by CMP can reduce the roughness of the waveguide sidewall after etching, improve the performance and power transmission efficiency of the device, and ensure that the sidewall surface is flat and smooth to achieve the minimum optical coupling loss and maximum power transmission.","PeriodicalId":298662,"journal":{"name":"Applied Optics and Photonics China","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138995616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A novel approach to suppressing the time-delayed signature (TDS) in chaotic signals from the semiconductor laser (SCL) is proposed and experimentally demonstrated based on the optoelectronic hybrid feedback. Through combining the distributed feedback in the chirped fiber Bragg grating (CFBG) with the nonlinear optoelectronic feedback provided by the microwave photonic link, a low-TDS chaotic oscillation is successfully built up in the SCI cavity. Thanks to the employment of the nonlinear optoelectronic feedback, the proposed scheme can generate low TDS chaotic signals by using a CFBG with a much smaller grating dispersion coefficient of about 22.3 ps/nm compared with the scheme relying solely on the distributed feedback (i.e., 2000 ps/nm). In addition, different from the broadband optoelectronic oscillator, there is almost no stringent requirement of the extremely high net gain of the microwave photonic link. In the proof-of-concept experiment, the chaotic signal generated by the proposed scheme has a much lower TDS of about 0.05, a higher PE of 0.9978, and a better spectral flatness of 8 dB, compared with the conventional distributed feedback laser.
{"title":"Suppression of time-delayed signature in chaotic signals based on optoelectronic hybrid feedbacks","authors":"Ziwei Xu, Zhen Zeng, Zhiyao Zhang, Yong Liu","doi":"10.1117/12.3007457","DOIUrl":"https://doi.org/10.1117/12.3007457","url":null,"abstract":"A novel approach to suppressing the time-delayed signature (TDS) in chaotic signals from the semiconductor laser (SCL) is proposed and experimentally demonstrated based on the optoelectronic hybrid feedback. Through combining the distributed feedback in the chirped fiber Bragg grating (CFBG) with the nonlinear optoelectronic feedback provided by the microwave photonic link, a low-TDS chaotic oscillation is successfully built up in the SCI cavity. Thanks to the employment of the nonlinear optoelectronic feedback, the proposed scheme can generate low TDS chaotic signals by using a CFBG with a much smaller grating dispersion coefficient of about 22.3 ps/nm compared with the scheme relying solely on the distributed feedback (i.e., 2000 ps/nm). In addition, different from the broadband optoelectronic oscillator, there is almost no stringent requirement of the extremely high net gain of the microwave photonic link. In the proof-of-concept experiment, the chaotic signal generated by the proposed scheme has a much lower TDS of about 0.05, a higher PE of 0.9978, and a better spectral flatness of 8 dB, compared with the conventional distributed feedback laser.","PeriodicalId":298662,"journal":{"name":"Applied Optics and Photonics China","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138963553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yuan Ye, Jingguo Zhu, Chenghao Jiang, Zhihong Hu, Yuhua Jiang, Ru-qing Liu, Zhonghe Liu
Aiming at the problem that the laser coherent detection system is easy to be annihilated in the noise in the long-distance and complex environment, resulting in the system unable to extract effective information, In this paper, the pulse compression theory and matched filter principle are analyzed, and a target high-precision matched filter LFM system model suitable for laser coherent detection is proposed, by transmitting a linear frequency modulation signal, combined with the matched filter algorithm to process the echo signal, realizes the target distance solution under the condition of low signal-to-noise ratio. At the same time, the influence of FM bandwidth on the multi-target extractionability under different SNR is studied, and the FM bandwidth-ranging accuracy model is established. Compared with the ordinary windowing algorithm, by increasing the system FM bandwidth, it can be effective in extremely low signal-to-noise ratios. Extract multi-target distance values. The simulation results show that under the condition of -40 dB signal-to-noise ratio, setting the frequency modulation bandwidth to 4 GHz can effectively achieve multi-target detection, and the ranging accuracy can reach 4.5 mm.
针对激光相干探测系统在长距离复杂环境中容易被噪声湮没，导致系统无法提取有效信息的问题，本文分析了脉冲压缩理论和匹配滤波器原理，提出了一种适合激光相干探测的目标高精度匹配滤波器低频调制系统模型，通过发射线性频率调制信号，结合匹配滤波器算法处理回波信号，实现了低信噪比条件下的目标距离解算。同时，研究了不同信噪比下调频带宽对多目标提取能力的影响，建立了调频带宽-测距精度模型。与普通开窗算法相比，通过增加系统调频带宽，可以在极低信噪比下有效地提取多目标距离值。仿真结果表明，在信噪比为-40 dB 的条件下，将频率调制带宽设置为 4 GHz 可以有效实现多目标检测，测距精度可达 4.5 mm。
{"title":"Simulation research on coherent detection of pulsed laser based on LFM","authors":"Yuan Ye, Jingguo Zhu, Chenghao Jiang, Zhihong Hu, Yuhua Jiang, Ru-qing Liu, Zhonghe Liu","doi":"10.1117/12.3002148","DOIUrl":"https://doi.org/10.1117/12.3002148","url":null,"abstract":"Aiming at the problem that the laser coherent detection system is easy to be annihilated in the noise in the long-distance and complex environment, resulting in the system unable to extract effective information, In this paper, the pulse compression theory and matched filter principle are analyzed, and a target high-precision matched filter LFM system model suitable for laser coherent detection is proposed, by transmitting a linear frequency modulation signal, combined with the matched filter algorithm to process the echo signal, realizes the target distance solution under the condition of low signal-to-noise ratio. At the same time, the influence of FM bandwidth on the multi-target extractionability under different SNR is studied, and the FM bandwidth-ranging accuracy model is established. Compared with the ordinary windowing algorithm, by increasing the system FM bandwidth, it can be effective in extremely low signal-to-noise ratios. Extract multi-target distance values. The simulation results show that under the condition of -40 dB signal-to-noise ratio, setting the frequency modulation bandwidth to 4 GHz can effectively achieve multi-target detection, and the ranging accuracy can reach 4.5 mm.","PeriodicalId":298662,"journal":{"name":"Applied Optics and Photonics China","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138963590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yao Xie, Na Li, Wei Li, Peili He, Zhongshuai Feng, Hua Zhang, Chaonan Yao
In this paper, we experimentally demonstrated the transmission of 112 Gb/s PAM-4 and PAM-6 signals over standard single-mode fibers for 2 km and 10 km based on a 30GHz-EML. We have used three algorithms, of which MLSE has best BER performance. In consideration of algorithm complexity, FFE is cascaded before MLSE. For PAM-4 signal, the sensitivity is improved by 1 dB when using MLSE compared to FFE.
{"title":"Demonstration of 112Gb/s PAM4/6 signal transmission in IM/DD systems using MLSE","authors":"Yao Xie, Na Li, Wei Li, Peili He, Zhongshuai Feng, Hua Zhang, Chaonan Yao","doi":"10.1117/12.3005746","DOIUrl":"https://doi.org/10.1117/12.3005746","url":null,"abstract":"In this paper, we experimentally demonstrated the transmission of 112 Gb/s PAM-4 and PAM-6 signals over standard single-mode fibers for 2 km and 10 km based on a 30GHz-EML. We have used three algorithms, of which MLSE has best BER performance. In consideration of algorithm complexity, FFE is cascaded before MLSE. For PAM-4 signal, the sensitivity is improved by 1 dB when using MLSE compared to FFE.","PeriodicalId":298662,"journal":{"name":"Applied Optics and Photonics China","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138963646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The continuous exploration of the ocean boosts an increasing use of optical means to guide underwater object grasping or underwater docking. In this paper, an underwater wide working distance lens is designed, which is suitable when accurate guidance by machine vision at close range is needed. The lens is adaptable for underwater manipulator grabbing the target, docking of unmanned underwater vehicles and so on. The commonly used sonar guidance methods for underwater long-distance work are difficult to meet the accuracy of close-range work. The method of optical guidance is also affected by factors such as water's absorption and scattering of light, and can only work at close distances. Combining the limitations of both, the designed working distance of this system is within the range of 0.1-10 m, and the use of polarization can further improve the effectiveness of underwater imaging. In view of the effects of seawater refractive index, water pressure, total length limit, and water temperature in the seawater use environment, this paper designs an underwater lens with the maximum working depth of 1500 meters and the working water temperature of 0-30 degrees. The lens is designed with flat underwater optical window and 10 spherical elements in 8 groups. The diagonal field of view (FoV) in water is 35 degrees, F-number (F/#) of 1.8, and the total length is less than 70mm, which is used with the polarization image sensors of 2/3inch optical format. The good imaging quality of the lens satisfies the MTF greater than 0.4@145lp/mm in the whole working distance.
{"title":"Optical design of an underwater wide working distance robot vision lens","authors":"Ruikang Li, Da Mu, Yongjun Hao, Peng Chen","doi":"10.1117/12.3005306","DOIUrl":"https://doi.org/10.1117/12.3005306","url":null,"abstract":"The continuous exploration of the ocean boosts an increasing use of optical means to guide underwater object grasping or underwater docking. In this paper, an underwater wide working distance lens is designed, which is suitable when accurate guidance by machine vision at close range is needed. The lens is adaptable for underwater manipulator grabbing the target, docking of unmanned underwater vehicles and so on. The commonly used sonar guidance methods for underwater long-distance work are difficult to meet the accuracy of close-range work. The method of optical guidance is also affected by factors such as water's absorption and scattering of light, and can only work at close distances. Combining the limitations of both, the designed working distance of this system is within the range of 0.1-10 m, and the use of polarization can further improve the effectiveness of underwater imaging. In view of the effects of seawater refractive index, water pressure, total length limit, and water temperature in the seawater use environment, this paper designs an underwater lens with the maximum working depth of 1500 meters and the working water temperature of 0-30 degrees. The lens is designed with flat underwater optical window and 10 spherical elements in 8 groups. The diagonal field of view (FoV) in water is 35 degrees, F-number (F/#) of 1.8, and the total length is less than 70mm, which is used with the polarization image sensors of 2/3inch optical format. The good imaging quality of the lens satisfies the MTF greater than 0.4@145lp/mm in the whole working distance.","PeriodicalId":298662,"journal":{"name":"Applied Optics and Photonics China","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138964325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper delves into the investigation of morphing capabilities in a unimorph deformable mirror within the context of Active Optics applications, specifically when exposed to environmental factors in space. The study encompasses an array of factors that contribute to disturbances, encompassing intricate thermal and mechanical conditions that impact the ferroelectric properties of strain actuation. The study also focuses on the effects of stress-induced geometric stiffness on the mirror's structural rigidity. In addition, the paper envisions the potential utilization of these mirrors in lightweight satellite systems.
{"title":"Morphing behavior of a piezoelectric deformable mirror under complex environment for space active optics","authors":"Yuxuan Gong, Yian Yu, Kainan Wang","doi":"10.1117/12.3007900","DOIUrl":"https://doi.org/10.1117/12.3007900","url":null,"abstract":"This paper delves into the investigation of morphing capabilities in a unimorph deformable mirror within the context of Active Optics applications, specifically when exposed to environmental factors in space. The study encompasses an array of factors that contribute to disturbances, encompassing intricate thermal and mechanical conditions that impact the ferroelectric properties of strain actuation. The study also focuses on the effects of stress-induced geometric stiffness on the mirror's structural rigidity. In addition, the paper envisions the potential utilization of these mirrors in lightweight satellite systems.","PeriodicalId":298662,"journal":{"name":"Applied Optics and Photonics China","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138964408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Over the past decade, numerous types of launch vehicles, exceeding a dozen in total, have achieved their maiden flights. Through a meticulous analysis and evaluation of these launch vehicles. The global space industry has ushered in a new era marked by complete commercialization, innovation-driven advancements, and the integration of military and civilian efforts. Taking into account the evolving demands of commercial satellites worldwide, particularly the deployment of space station cargo supplies, low-orbit Internet constellations, and flight transportation, there is an urgent need to augment the payload capacity and carrying efficiency of launch vehicles. Enhancing launch efficiency is also paramount. Consequently, it is imperative to construct a series of launch vehicles that possess comprehensive mission capabilities and exhibit a first-class technological standard. These endeavors will effectively cater to the ever-increasing requirements of the industry.
{"title":"Development trend and integrated design of liquid launch vehicle","authors":"Haoliang Yang","doi":"10.1117/12.3008122","DOIUrl":"https://doi.org/10.1117/12.3008122","url":null,"abstract":"Over the past decade, numerous types of launch vehicles, exceeding a dozen in total, have achieved their maiden flights. Through a meticulous analysis and evaluation of these launch vehicles. The global space industry has ushered in a new era marked by complete commercialization, innovation-driven advancements, and the integration of military and civilian efforts. Taking into account the evolving demands of commercial satellites worldwide, particularly the deployment of space station cargo supplies, low-orbit Internet constellations, and flight transportation, there is an urgent need to augment the payload capacity and carrying efficiency of launch vehicles. Enhancing launch efficiency is also paramount. Consequently, it is imperative to construct a series of launch vehicles that possess comprehensive mission capabilities and exhibit a first-class technological standard. These endeavors will effectively cater to the ever-increasing requirements of the industry.","PeriodicalId":298662,"journal":{"name":"Applied Optics and Photonics China","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138965233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Haiqin Deng, Qiang Yu, Zixin Yang, Jian Wu, Pu Zhou
Recently, 2D layered MnBi2Te4 has been a promising candidate for discovering the exotic topological quantum phenomena for the coexisting topology and magnetism. In particular, the layered structure of MnBi2Te4 with a small bandgap possesses excellent ultrafast nonlinear response and broadband saturable absorption, which indicates that they can be applied in the field of ultrafast photonics. Despite tremendous research on magnetism and topology, the nonlinear optical properties of MnBi2Te4 have been underexplored. Herein, we have successfully synthesized the high-quality MnBi2Te4 by the self-flux method. By using MnBi2Te4 nanosheets as a saturable absorber (SA), a passive mode-locking erbium-doped fiber (EDF) laser centered at 1560 nm was obtained with a pulse duration of 331 fs. This work suggests that magnetic topological insulators possess great potential for ultrafast photonics.
{"title":"Ultrafast pulse generation via magnetic topological insulator MnBi2Te4 nanosheets","authors":"Haiqin Deng, Qiang Yu, Zixin Yang, Jian Wu, Pu Zhou","doi":"10.1117/12.3005487","DOIUrl":"https://doi.org/10.1117/12.3005487","url":null,"abstract":"Recently, 2D layered MnBi2Te4 has been a promising candidate for discovering the exotic topological quantum phenomena for the coexisting topology and magnetism. In particular, the layered structure of MnBi2Te4 with a small bandgap possesses excellent ultrafast nonlinear response and broadband saturable absorption, which indicates that they can be applied in the field of ultrafast photonics. Despite tremendous research on magnetism and topology, the nonlinear optical properties of MnBi2Te4 have been underexplored. Herein, we have successfully synthesized the high-quality MnBi2Te4 by the self-flux method. By using MnBi2Te4 nanosheets as a saturable absorber (SA), a passive mode-locking erbium-doped fiber (EDF) laser centered at 1560 nm was obtained with a pulse duration of 331 fs. This work suggests that magnetic topological insulators possess great potential for ultrafast photonics.","PeriodicalId":298662,"journal":{"name":"Applied Optics and Photonics China","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138965246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xueqi Chen, Lurui Xia, Sen Li, Yi Liu, Xuanwen Yang, Jijian Hu, Yan Lu
In this paper, a monolithic polarizing metalens is used to extract multiple polarization information of the target at the same time. The i1maging receiver uses a general detector easily available on the market, which can obtain the intensity information image of multiple polarization components. The polarization measurement speed is fast, and the number of modules in the optical system is reduced The monocular 3D imaging system based on polarization-sensitive metalens collects diffuse reflected light from the surface of the target, and uses different polarimetric sub-images obtained by the metalens to carry out 3D reconstruction of the target.
{"title":"A monocular 3D imaging system based on polarization-sensitive metalens","authors":"Xueqi Chen, Lurui Xia, Sen Li, Yi Liu, Xuanwen Yang, Jijian Hu, Yan Lu","doi":"10.1117/12.3002537","DOIUrl":"https://doi.org/10.1117/12.3002537","url":null,"abstract":"In this paper, a monolithic polarizing metalens is used to extract multiple polarization information of the target at the same time. The i1maging receiver uses a general detector easily available on the market, which can obtain the intensity information image of multiple polarization components. The polarization measurement speed is fast, and the number of modules in the optical system is reduced The monocular 3D imaging system based on polarization-sensitive metalens collects diffuse reflected light from the surface of the target, and uses different polarimetric sub-images obtained by the metalens to carry out 3D reconstruction of the target.","PeriodicalId":298662,"journal":{"name":"Applied Optics and Photonics China","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138994643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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