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Long-Term Stability Improvement of Opto-Electronic Oscillators via Laser Driver Current Control
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2024-12-02 DOI: 10.1109/LPT.2024.3509637
Meng Shi;Haitao Wu;Jiayue Shen;Sibo Gui;Zhaolong Li;Jianye Zhao
{"title":"Long-Term Stability Improvement of Opto-Electronic Oscillators via Laser Driver Current Control","authors":"Meng Shi;Haitao Wu;Jiayue Shen;Sibo Gui;Zhaolong Li;Jianye Zhao","doi":"10.1109/LPT.2024.3509637","DOIUrl":"https://doi.org/10.1109/LPT.2024.3509637","url":null,"abstract":"A practical frequency stabilization method for opto-electronic oscillators (OEOs) using an Adaptive Proportional-Integral-Derivative (PID) controller with Trend-based Adjustment (APTA) is proposed and experimentally demonstrated. The method dynamically adjusts the laser driver current of the distributed feedback (DFB), enhancing frequency stability without needing costly tunable lasers. The APTA approach achieves a frequency drift reduction to ±0.005 ppm/K and an Allan deviation of \u0000<inline-formula> <tex-math>$8.5 times ; 10^{-11}$ </tex-math></inline-formula>\u0000 at 1000 s under thermal variations while maintaining phase noise performance.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 2","pages":"89-92"},"PeriodicalIF":2.3,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142858986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
All Optical Fiber Dual WGM Resonators
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2024-11-27 DOI: 10.1109/LPT.2024.3507697
Y. L. Mei;D. N. Wang;Q. B. Wang;Y. Zhang
{"title":"All Optical Fiber Dual WGM Resonators","authors":"Y. L. Mei;D. N. Wang;Q. B. Wang;Y. Zhang","doi":"10.1109/LPT.2024.3507697","DOIUrl":"https://doi.org/10.1109/LPT.2024.3507697","url":null,"abstract":"Whispering gallery mode (WGM) resonator has many advantages such as high quality factor (Q), small mode volume, long photon life time and low power consumption, hence is widely used in optical filters, modulators, micro-lasers, frequency comb generators, nonlinear optics and high-sensitivity sensor devices. However, most of the WGM resonators are discrete optical devices, which cannot be coupled directly with incoming light radiations, and an external coupling scheme by use of tapered fiber, side-polished fiber, waveguide or prism has to be used. This creates a difficulty when applying WGM resonator in the optical fiber system. Here we propose and demonstrate an all optical fiber dual WGM resonator device, which is naturally integrated with optical fiber and being easily coupled by the light traveling in the fiber core. The device consists of an embedded cylinder inside a cylindrical air-cavity within the fiber core, fabricated by use of femtosecond laser micromachining and fast hydrofluoric acid etching technique. When the optical transmission path in the fiber core is tangent to the inner wall of the cylindrical air-cavity, the light is coupled into the cavity via the evanescent field and excites WGM. When light entering the cylindrical air-cavity is tangential to the surface of the embedded cylinder, it is coupled into the cylinder cavity, circulates along the cylinder surface, and excites WGM resonance. Thus a dual WGM operation is generated. The device is compact in size, flexible in construction, simple in fabrication and convenient in operation, and exhibits promising potential applications in photonics.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 1","pages":"33-36"},"PeriodicalIF":2.3,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142777743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Position Characteristics Removing Algorithm for Pattern Recognition in Interferometric DOFS
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2024-11-27 DOI: 10.1109/LPT.2024.3507614
Yunke Du;Rui Jin;Churui Li;Bo Ma;Yuzhe Sun;Chenyue He;Yang Yan;Chao Wang;Bo Jia
{"title":"Position Characteristics Removing Algorithm for Pattern Recognition in Interferometric DOFS","authors":"Yunke Du;Rui Jin;Churui Li;Bo Ma;Yuzhe Sun;Chenyue He;Yang Yan;Chao Wang;Bo Jia","doi":"10.1109/LPT.2024.3507614","DOIUrl":"https://doi.org/10.1109/LPT.2024.3507614","url":null,"abstract":"In distributed optical fiber sensing system, pattern recognition is employed to identify vibration signals. This letter introduces a novel algorithm for removing position characteristics to enhance the pattern recognition accuracy based on single core feedback interference system. The detrimental effects of position characteristics on signal identification are analyzed and simulated. Experiments using a hybrid Mach-Zehnder and Sagnac interferometer combined with a convolutional neural network show a classification accuracy of 98.1% across seven types of position-independent vibration signals. This represents a 1.1% improvement over original signals. Focused on accurately classifying vibration signals from various locations, the position characteristics removing algorithm allows classifier trained solely on data collected from a single point, with enhanced accuracy and the ability to generalize across different signal types and locations.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 1","pages":"45-48"},"PeriodicalIF":2.3,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142777599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stretched-Pulse Mode-Locked Laser Using Post-Cavity Stretching for Ultrahigh-Speed OCT
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2024-11-27 DOI: 10.1109/LPT.2024.3508541
Jongyoon Joo;Seungwan Cho;Benjamin J. Vakoc;Wang-Yuhl Oh
{"title":"Stretched-Pulse Mode-Locked Laser Using Post-Cavity Stretching for Ultrahigh-Speed OCT","authors":"Jongyoon Joo;Seungwan Cho;Benjamin J. Vakoc;Wang-Yuhl Oh","doi":"10.1109/LPT.2024.3508541","DOIUrl":"https://doi.org/10.1109/LPT.2024.3508541","url":null,"abstract":"We demonstrate a chirped fiber Bragg grating (CFBG) based stretched-pulse mode-locked (SPML) wavelength-swept laser that uses both intra-cavity and post-cavity stretching. The SPML laser with complementary post-cavity stretching offers versatility in OCT imaging speed and eliminates the need for optical buffering. Using an SPML laser with a 5-m intra-cavity CFBG and a 5-m post-cavity CFBG, providing a wavelength sweep rate of 1075 nm/\u0000<inline-formula> <tex-math>$mu $ </tex-math></inline-formula>\u0000s, we achieved OCT imaging with a sensitivity of 97.4 dB and a single-sided 6-dB coherence length of 5.6 mm. This demonstrated more than two-fold increase in coherence length with a slight sensitivity drop of 0.6 dB compared to an SPML laser with the same wavelength sweep rate using intra-cavity stretching only. The CFBG-SPML laser with post-cavity stretching offers a compelling option for OCT systems, particularly when long imaging range is required.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 1","pages":"49-52"},"PeriodicalIF":2.3,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142777675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multifunctional Metasurfaces for Multispectral Infrared Detection With Radiative Cooling
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2024-11-27 DOI: 10.1109/LPT.2024.3507693
Yaoyao Xu;Pengfei Zhang;Yao Ma;Jun Liu;Liyan Zhu;Lifeng Wang;Xiaodong Huang
{"title":"Multifunctional Metasurfaces for Multispectral Infrared Detection With Radiative Cooling","authors":"Yaoyao Xu;Pengfei Zhang;Yao Ma;Jun Liu;Liyan Zhu;Lifeng Wang;Xiaodong Huang","doi":"10.1109/LPT.2024.3507693","DOIUrl":"https://doi.org/10.1109/LPT.2024.3507693","url":null,"abstract":"Infrared detection is promising for aircraft surveillance. The stealth aircraft displays intense radiation characteristics in the two long-wave infrared frequency ranges (8.02-\u0000<inline-formula> <tex-math>$8.58~mu $ </tex-math></inline-formula>\u0000m and 9.24-\u0000<inline-formula> <tex-math>$9.96~mu $ </tex-math></inline-formula>\u0000m). Therefore, it is quite important to enhance the detection precision in these two ranges. In addition, camouflage of the infrared detector itself requires low emissivity in the long-wave-infrared range. Moreover, in order to cool down the infrared detector, it is desirable to increase emissivity in the 5-\u0000<inline-formula> <tex-math>$8~mu $ </tex-math></inline-formula>\u0000m non-atmospheric window. In this work, a multifunctional metasurface with the Au/SiO2/Au thin film structure is designed and prepared. The structure exhibits high emissivity of 0.65 and 0.72 in the aircraft detection windows (8.02-\u0000<inline-formula> <tex-math>$8.58~mu $ </tex-math></inline-formula>\u0000m and 9.24-\u0000<inline-formula> <tex-math>$9.96~mu $ </tex-math></inline-formula>\u0000m) while maintaining low emissivity of 0.23 outside the detection windows for IR stealth. It also achieves high emissivity, with a maximum value of 0.65 and an average value of 0.38, in the non-atmospheric window (5-\u0000<inline-formula> <tex-math>$8~mu $ </tex-math></inline-formula>\u0000m) for thermal management. Exploration in the physical mechanisms of the compatible metasurface is conducted and discussed that the periodic array metal structure at the top layer allows the frequency selectivity while the metal/insulator/metal (MIM) structure localizes the incident wave under the synergistic effect of the intrinsic properties of materials and local surface plasmon, resulting in resistance losses. This work might bring more opportunities in military fields for optimizing multispectral infrared detection, device camouflage and radiation transmission signal processing.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 1","pages":"53-56"},"PeriodicalIF":2.3,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142777676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A 226.875-Gbit/s/λ Optical Receiver Based on a High-Frequency Integration by Flip-Chip Mounting
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2024-11-27 DOI: 10.1109/LPT.2024.3508539
Shohei Kosuga;Shigeru Kanazawa;Toshihide Yoshimatsu;Yasuhiko Nakanishi;Takuya Kanai;Takahiro Nakamura;Shoko Tatsumi;Mingchen Chen;Hirotaka Nakamura
{"title":"A 226.875-Gbit/s/λ Optical Receiver Based on a High-Frequency Integration by Flip-Chip Mounting","authors":"Shohei Kosuga;Shigeru Kanazawa;Toshihide Yoshimatsu;Yasuhiko Nakanishi;Takuya Kanai;Takahiro Nakamura;Shoko Tatsumi;Mingchen Chen;Hirotaka Nakamura","doi":"10.1109/LPT.2024.3508539","DOIUrl":"https://doi.org/10.1109/LPT.2024.3508539","url":null,"abstract":"A high-speed optical receiver for IM-DD 226.875-Gbit/s/\u0000<inline-formula> <tex-math>$lambda $ </tex-math></inline-formula>\u0000 transmission was designed and fabricated by using high-frequency, integrated flip-chip (FC) mounting. Thanks to the developed FC-mounting technique, the optical receiver exhibited high 3-dB bandwidth and less-fluctuation optical-to-electrical (O/E) frequency response. The fabricated optical receiver demonstrated 3-dB bandwidth of 55.1 GHz with less-fluctuation O/E frequency response up to 50 GHz (i.e., Nyquist frequency under 100-Gbaud operation at 4-PAM modulation frequency). The simulated transmission performance of the optical receiver reveals that its link budget for 226.875-Gbit/s/\u0000<inline-formula> <tex-math>$lambda $ </tex-math></inline-formula>\u0000 transmission is expanded by 3.7 dB by using the developed FC-mounting technique. The fabricated optical receiver also experimentally demonstrated transmission of a 226.875-Gbit/s signal over 20-km SSMF.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 1","pages":"57-60"},"PeriodicalIF":2.3,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Millimeter-Wave Bandpass Filter Using Rectangular Waveguide and SSPP With a Notched Band
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2024-11-27 DOI: 10.1109/LPT.2024.3507696
Ruijiao Qin;Dapeng Guo;Qinlong Li;Anxue Zhang;Xi Liu;Kai-Da Xu
{"title":"Millimeter-Wave Bandpass Filter Using Rectangular Waveguide and SSPP With a Notched Band","authors":"Ruijiao Qin;Dapeng Guo;Qinlong Li;Anxue Zhang;Xi Liu;Kai-Da Xu","doi":"10.1109/LPT.2024.3507696","DOIUrl":"https://doi.org/10.1109/LPT.2024.3507696","url":null,"abstract":"A millimeter-wave bandpass filter for Ka-band applications is proposed, which uses a rectangular waveguide and spoof surface plasmon polariton (SSPP) with a notched band. This filter incorporates SSPP, and double grating (DG) combined with two coupled split ring resonators (SRRs). The proposed SSPP and DG can provide the lower and upper cut-off frequencies of the bandpass filter (BPF). Two coupled SRRs are embedded into the waveguide to form a notched band, whose center frequency and bandwidth can be independently tuned by adjusting the parameters of SRRs. The dispersion curves of the SSPP and DG are calculated to determine the lower and upper cut-off frequencies. The bandwidth and notched band of the proposed filter can be controlled by varying the geometric parameters of SSPP, DG, and SRR. For demonstration, a Ka-band BPF with a notched band was fabricated and characterized. The measurement results agree well with the simulation, verifying the feasibility of the proposed design.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 1","pages":"29-32"},"PeriodicalIF":2.3,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142777817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Orientation Detection Method Based on Non-Imaging Concentrator System and Hyperparameter Search
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2024-11-25 DOI: 10.1109/LPT.2024.3505895
Tianqi Chen;Zhiwei Xie;Qiao Qiu;Zhanqiang Ru;Fei Wang;Shengli Chang
{"title":"Orientation Detection Method Based on Non-Imaging Concentrator System and Hyperparameter Search","authors":"Tianqi Chen;Zhiwei Xie;Qiao Qiu;Zhanqiang Ru;Fei Wang;Shengli Chang","doi":"10.1109/LPT.2024.3505895","DOIUrl":"https://doi.org/10.1109/LPT.2024.3505895","url":null,"abstract":"The concentrator system is widely used in photovoltaic power generation technology. This letter introduces the concentrator system into orientation detection. It proposes an innovative method combining a non-imaging concentrator system, a data collection electronic system, and a deep residual network(ResNet) algorithm optimized through hyperparameter search. The concentrator system comprises a primary optical element(POE) and a secondary optical element(SOE) array, while the electronic system is built around a PIN photodiode array. Experimental results validate the feasibility of this novel orientation detection method for the first time. This research offers a fresh perspective and technical foundation for orientation detection and identification.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 1","pages":"25-28"},"PeriodicalIF":2.3,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142777816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fabry-Perot Interferometer Curvature Sensor Based on Microwave Photonic Filter Technique
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2024-11-22 DOI: 10.1109/LPT.2024.3504850
Tongqun Zhang;Xiaozhong Tian;Lanju Liang;Minghong Wang;Dianguo Ma;Jintao Wu;Yunquan Sun;Junbao Wang
{"title":"Fabry-Perot Interferometer Curvature Sensor Based on Microwave Photonic Filter Technique","authors":"Tongqun Zhang;Xiaozhong Tian;Lanju Liang;Minghong Wang;Dianguo Ma;Jintao Wu;Yunquan Sun;Junbao Wang","doi":"10.1109/LPT.2024.3504850","DOIUrl":"https://doi.org/10.1109/LPT.2024.3504850","url":null,"abstract":"In this letter, we propose and experimentally demonstrate an approach to performing high-resolution and temperature-insensitive idea of a Fabry-Perot interferometer (FPI) curvature sensor utilizing microwave photonic filter (MPF) technique. A section of the capillary fiber is spliced between a single-mode fiber and a core-less fiber to form the air-gap FPI. The bending deformation of the FPI leads to changes in the fringe visibility (V) and free spectral range (FSR) of the interference pattern, which are converted into the changes in peak power and central frequency of the corresponding MPF. Consequently, the bending curvature can be recovered by tracking the frequency shift or the magnitude change. The experimental results show that the peak of the MPF decreases non-linearly with the increased curvature and a second-degree polynomial curve is fitted to predict the relationship. Compared with the fringe visibility change in optical domain, the peak power change of the MPF is enhanced by ~5 times. Meanwhile, the wavelength shift has a linear relationship with the curvature, and the sensitivity of 19.5 pm/m−1 is achieved in the curvature range of 3.3065-9.0552 m\u0000<inline-formula> <tex-math>$^{mathrm {-1}}$ </tex-math></inline-formula>\u0000 with a resolution of 1.026 m−1. The central frequency shifts linearly with the increase of curvature, and the sensitivity is 0.86 MHz/m\u0000<inline-formula> <tex-math>$^{mathrm {-1}}$ </tex-math></inline-formula>\u0000 with a resolution of \u0000<inline-formula> <tex-math>$1.16times 10 ^{-3}$ </tex-math></inline-formula>\u0000m−1, which is much larger than that obtained by tracking the wavelength shift.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 1","pages":"21-24"},"PeriodicalIF":2.3,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142777600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fixed Focus Grating Reflector Based on Hybrid Optimization Method
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2024-11-22 DOI: 10.1109/LPT.2024.3504824
Junjing Huang;Xiaofeng Duan;Kai Liu;Yongqing Huang;Xiaomin Ren
{"title":"Fixed Focus Grating Reflector Based on Hybrid Optimization Method","authors":"Junjing Huang;Xiaofeng Duan;Kai Liu;Yongqing Huang;Xiaomin Ren","doi":"10.1109/LPT.2024.3504824","DOIUrl":"https://doi.org/10.1109/LPT.2024.3504824","url":null,"abstract":"In this letter, we proposed a hybrid design method based on rigorous coupled wave analysis (RCWA) and velocity varying climbing particle swarm optimization (VVCPSO) to realize a focal shift eliminating grating reflector. we proved that the focusing reflector obtained by the hybrid design method can eliminate the focal shift of \u0000<inline-formula> <tex-math>$5mu $ </tex-math></inline-formula>\u0000m (the focal length is \u0000<inline-formula> <tex-math>$100mu $ </tex-math></inline-formula>\u0000m), improve the reflectivity and focusing efficiency by 14% and 17%, and achieve a full width at half maxima (FWHM) of \u0000<inline-formula> <tex-math>$0.52mu $ </tex-math></inline-formula>\u0000m, which is considerably smaller than the \u0000<inline-formula> <tex-math>$3.5mu $ </tex-math></inline-formula>\u0000m of the focusing reflector obtained solely through RCWA. Therefore, this method has a far-reaching influence on the design of fixed focus grating structure.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 1","pages":"13-16"},"PeriodicalIF":2.3,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142761538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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