Applied Optics and Photonics China最新文献_第8页

Frequency diverse array signal generation based on dual optical frequency combs 基于双光学频率梳的频率多样化阵列信号生成技术

Applied Optics and Photonics China Pub Date : 2023-12-18 DOI: 10.1117/12.3007313

Jiajun Tan, Xirui Zhong, Ruihao Wang, Weile Zhai, Yongsheng Gao

引用次数: 0

Multi-perspective long-focus camera calibration algorithm based on parallel perspective projection model 基于平行透视投影模型的多视角长焦摄像机校准算法

Applied Optics and Photonics China Pub Date : 2023-12-18 DOI: 10.1117/12.3007788

Siyu Ni, Bin Xue, Jin-you Tao

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InP-based uni-travelling-carrier photodiode array monolithically integrated circuit 基于 InP 的单向传输载流子光电二极管阵列单片集成电路

Applied Optics and Photonics China Pub Date : 2023-12-18 DOI: 10.1117/12.3006662

Da-bao Yang, Dong Xing, Bo Liu, Xiang-yang Zhao, Zhihong Feng

引用次数: 0

Study on the impact of grating absorption on substrate temperature under intense laser irradiation 强激光照射下光栅吸收对衬底温度影响的研究

Applied Optics and Photonics China Pub Date : 2023-12-18 DOI: 10.1117/12.3006024

Gaoxiang Xu, Chao-ming Li, Xinrong Chen, Shuncheng Sun, Jiayao Pan, Tao Wu, Lei Sun

引用次数: 0

Design of compact off-axis three-mirror freeform optical system with small F number 设计具有小 F 数的紧凑型离轴三镜自由曲面光学系统

Applied Optics and Photonics China Pub Date : 2023-12-18 DOI: 10.1117/12.3007600

mo ning, Xianglong Mao, Jiadong Yu, Ying Yuan, Jiating Yang, Zhaohan Cai, Yongjun Xie

{"title":"Design of compact off-axis three-mirror freeform optical system with small F number","authors":"mo ning, Xianglong Mao, Jiadong Yu, Ying Yuan, Jiating Yang, Zhaohan Cai, Yongjun Xie","doi":"10.1117/12.3007600","DOIUrl":"https://doi.org/10.1117/12.3007600","url":null,"abstract":"In the field of space optics, the compact freeform optical imaging system with small F number can realize the miniaturization and lightweight of the load, which is beneficial to enhance the ability of target recognition. In this paper, according to the vector aberration theory and the principle of Gaussian brackets, the error evaluation function is constructed by the primary wave aberration coefficients and focal length constraint of the system, and the dynamic weight is used to limit difference in the order of magnitude between various aberrations, which is conducive to rapid convergence in the process of solving the initial structural parameters. In order to achieve the compactness of the system, the circular layout is adopted. The unobstructed initial structure of the off-axis reflective system with conic surfaces is obtained through Particle Swarm Optimization (PSO) algorithm, and the off-axis three-mirror freeform optical system with a highly compact layout is obtained after optimization. In addition, considering the difficulty of freeform surfaces manufacturing, add the manufacturability constraint to the optimization process to control the degree of departure between the aperture edge of the freeform surfaces and the conic surfaces in real time. Compared with the optical system obtained without manufacturability constraints, the difficulty of manufacturing is effectively reduced.","PeriodicalId":502341,"journal":{"name":"Applied Optics and Photonics China","volume":"26 6","pages":"129640E - 129640E-6"},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139174202","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}

引用次数: 0

Research on failure mechanism of high-power tapered semiconductor laser 高功率锥形半导体激光器失效机理研究

Applied Optics and Photonics China Pub Date : 2023-12-18 DOI: 10.1117/12.3001233

Wenyuan Liao, XingMian Chen, Yuebo Liu, ShuWang Li, Shaohua Yang, C. Lai, Guoguang Lu

{"title":"Research on failure mechanism of high-power tapered semiconductor laser","authors":"Wenyuan Liao, XingMian Chen, Yuebo Liu, ShuWang Li, Shaohua Yang, C. Lai, Guoguang Lu","doi":"10.1117/12.3001233","DOIUrl":"https://doi.org/10.1117/12.3001233","url":null,"abstract":"Tapered semiconductor lasers are widely used in space communication due to their high output power and high beam quality. The tapered semiconductor laser structure mainly consists of ridge region, absorption region and tapered region. The tapered semiconductor laser is analyzed by characterization methods such as EMMI, EDS and FIB-SEM in this paper. It is found that the waveguide damage in the ridge region is caused by the enhancement of the local optical power density in the ridge waveguide, and there are failure points inside the waveguide and the sidewall of the device, resulting in photon leakage. The closer to the optical cavity surface, the more holes between the solder and the electrodes, and the presence of oxygen elements near the optical cavity surface, indicating that the interface holes existing in the optical cavity surface would lead to the migration of oxygen elements. The research results reveal that the enhancement of local power density in the ridge waveguide is caused by the optical feedback process. The main failure mechanisms of the device contain the solder holes and the enhancement of local power density, which provide an important reference for the process optimization of high-power tapered semiconductor lasers.","PeriodicalId":502341,"journal":{"name":"Applied Optics and Photonics China","volume":"148 2","pages":"129590B - 129590B-8"},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139174402","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}

引用次数: 0

Impact of mode instability on polarization extinction ratio in backward pumped fiber amplifiers 模式不稳定性对反向泵浦光纤放大器偏振消光比的影响

Applied Optics and Photonics China Pub Date : 2023-12-18 DOI: 10.1117/12.3008002

Qiuhui Chu, Chun Zhang, Q. Shu, Chao Guo, Haoyu Zhang, Rumao Tao, Hong-huan Lin

引用次数: 0

Effect of SrO, ZrO2 on ion bombardment-resistant for the lead-silicate glass-based microchannel plate SrO、ZrO2 对硅酸铅玻璃基微通道板抗离子轰击性的影响

Applied Optics and Photonics China Pub Date : 2023-12-18 DOI: 10.1117/12.3008037

Hua Cai, Shangtong Li, Hui Liu, Jing Ma, Liying Wei, Wenjing Qin, Tiezhu Bo, Shiyong Xie, Jiao Lian, Jinsheng Jia, S. Li

引用次数: 0

Design of a multi-laser module for optical pumping in compact atomic gyroscopes 设计用于紧凑型原子陀螺仪光学泵浦的多激光器模块

Applied Optics and Photonics China Pub Date : 2023-12-18 DOI: 10.1117/12.2692791

Yuchen Jia, Yan Liu, Chaoji Chen, Ruixun Chen

{"title":"Design of a multi-laser module for optical pumping in compact atomic gyroscopes","authors":"Yuchen Jia, Yan Liu, Chaoji Chen, Ruixun Chen","doi":"10.1117/12.2692791","DOIUrl":"https://doi.org/10.1117/12.2692791","url":null,"abstract":"In the compact atomic gyroscopes, the vertical-cavity surface-emitting laser (VCSEL) is usually utilized as the laser source. However, the power of VCSEL is not sufficient to polarize the nuclear spin efficiently. To solve this problem, we put forward a multi-laser module design for optical pumping in compact atomic gyroscopes. In this module, several lasers are integrated in one module and utilized together for pumping. We fabricated and tested a laser module with two VCSELs for demonstration. First of all, the beam collimation system is simulated, and it is concluded that the two lasers can be integrated on the same micro-heater and collimated by the same lens. This is proved experimentally by beam profile measurement. Furthermore, the polarization distribution is simulated and investigated, and the results indicate that the polarization and its homogeneity can be increased significantly when pumping with two lasers. Finally, the nuclear polarization is measured experimentally, and it is demonstrated that the nuclear polarization when pumping with two 1 mW lasers is increased from 3.71% to 5.52%, and the proportion of the increase is more than 48% compared to that when pumping with a single 1 mW laser. These results prove the feasibility of the design, and this multi-laser pumped regime provides new inspirations for the development of compact atomic gyroscopes.","PeriodicalId":502341,"journal":{"name":"Applied Optics and Photonics China","volume":"74 ","pages":"1295905 - 1295905-10"},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139175244","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}

引用次数: 0

Optoelectronic integrated circuits co-simulation in Verilog-A 用 Verilog-A 进行光电集成电路协同仿真

Applied Optics and Photonics China Pub Date : 2023-12-18 DOI: 10.1117/12.3006027

Hao Fang, Lingxiao Wu, Xiao Xu, L. Du, Jia Zhao

{"title":"Optoelectronic integrated circuits co-simulation in Verilog-A","authors":"Hao Fang, Lingxiao Wu, Xiao Xu, L. Du, Jia Zhao","doi":"10.1117/12.3006027","DOIUrl":"https://doi.org/10.1117/12.3006027","url":null,"abstract":"As the complexity of optoelectronic integrated circuits (OEICs) develop, the need for an accurate and efficient compatible simulation environment that supports both photonics and electronics becomes increasingly critical. This paper addresses the demand by proposing an approach that leverages Verilog-A language to build equivalent circuit models and compact models for photonic devices. Passive components, including couplers and waveguides, are modeled using compact models. Active components, such as CW lasers, are realized through the adoption of equivalent circuit models. Additionally, a depletion-type phase shifter is separated in two parts: the electrical part for parasitic parameters and the p-n junction are presented with RC components, while the optical characteristics, influenced by electrical modulation, are achieved through the use of compact models. The proposed compatible system design scheme, which consists of Verilog-A models, can be analyzed in the frequency-domain using EDA software. The simulation results demonstrate a mean absolute percentage error (MAPE) of less than 0.003% when compared to those obtained from commercial interoperable design software. Therefore, this study effectively addresses the challenge of incompatible design and simulation for OEIC, and providing strong evidence that OEIC design can be achieved in a unified EDA platform.","PeriodicalId":502341,"journal":{"name":"Applied Optics and Photonics China","volume":"128 ","pages":"129660T - 129660T-6"},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139175445","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}

引用次数: 0