International Conference on Optoelectronic Information and Computer Engineering (OICE)最新文献_第2页

High-resolution spectral response measurement based on single sideband modulation 基于单边带调制的高分辨率光谱响应测量

International Conference on Optoelectronic Information and Computer Engineering (OICE) Pub Date : 2023-08-01 DOI: 10.1117/12.2691429

Dengcai Yang, Ling Feng, Feng Yang, Yunxin Wang

{"title":"High-resolution spectral response measurement based on single sideband modulation","authors":"Dengcai Yang, Ling Feng, Feng Yang, Yunxin Wang","doi":"10.1117/12.2691429","DOIUrl":"https://doi.org/10.1117/12.2691429","url":null,"abstract":"The spectral response of passive optical devices reveals the important characteristics of their materials and functions and is an essential evaluation index in the development, production and application of optical devices. In this paper, a broadband and high-resolution spectral response measurement method is proposed based on single sideband modulation technology. The optical carrier emitted by the tunable light source is incident on the dual parallel Mach Zehnder modulator (DPMZM), and the Microwave signal emitted by the frequency source is loaded on the modulator. Combined with the bias voltage and the hybrid couple, carrier suppression single sideband (CS-SSB) modulation is realized. The modulated signal is received by the photodetector after passing through the passive optical device under test, and frequency of the single sideband modulated optical signal can be swept through the frequency source. This signal passes through the optical beam splitter, and the spectral response of the passive optical device is measured by the balance detection of two signals. A broadband high-resolution spectral response measurement system is constructed in the experiment. The experimental results show that the spectral measurement resolution of the system reaches at least 5 MHz, and the measurement range is 1528-1568 nm. This measurement method combines a tunable light source with a single sideband microwave photon scanning frequency. The system structure is simple, the measurement accuracy is high, and the measurement range is large. It can realize the spectrum response measurement of passive optical devices such as narrow linewidth filters and wavelength division multiplexers.","PeriodicalId":114868,"journal":{"name":"International Conference on Optoelectronic Information and Computer Engineering (OICE)","volume":"70 38","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133085623","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

A method for generating reconfigurable photonic arbitrary phase-coded microwave signals with fundamental/double/triple carrier frequencies 一种产生基频/双频/三频载波可重构光子任意相位编码微波信号的方法

International Conference on Optoelectronic Information and Computer Engineering (OICE) Pub Date : 2023-08-01 DOI: 10.1117/12.2691672

Jing Yin, Yan Zhao, Feng Yang, Dengcai Yang, Yunxin Wang

{"title":"A method for generating reconfigurable photonic arbitrary phase-coded microwave signals with fundamental/double/triple carrier frequencies","authors":"Jing Yin, Yan Zhao, Feng Yang, Dengcai Yang, Yunxin Wang","doi":"10.1117/12.2691672","DOIUrl":"https://doi.org/10.1117/12.2691672","url":null,"abstract":"A method for generating reconfigurable photonic arbitrary phase-coded microwave signal with fundamental/double/triple carrier frequencies is proposed and demonstrated. A dual-parallel dual-polarization Mach‒Zehnder modulator (DP-DPMZM) and an optical bandpass filter (OBPF) are cascaded to generate orthogonally polarized optical carrier signals and 1st/2nd/3rd -order sideband signals, which are sent into a polarization-dependent phase modulator (PD-PM), which can realize phase modulation with different polarization state optical signals. The phase modulated signal after PD-PM will be projected into the polarization direction with a polarizer (Pol) and the phase shifting microwave signal will be obtained with a photodetector (PD). This method enables the frequency multiplication factor to be changed by tuning the bias voltage of the modulator alone, which makes the system can work in a wide bandwidth, and it also reduces the frequency requirements of the local oscillator (LO) signal. In the simulation, binary phase-coded signals with center frequencies of 6 GHz, 12 GHz, and 18 GHz are generated, and their performance is verified.","PeriodicalId":114868,"journal":{"name":"International Conference on Optoelectronic Information and Computer Engineering (OICE)","volume":"56 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114052972","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

Dual-branch visible and infrared image fusion transformer 双支路可见光和红外图像融合变压器

International Conference on Optoelectronic Information and Computer Engineering (OICE) Pub Date : 2023-08-01 DOI: 10.1117/12.2691207

Xiao-jing Shi, Zhen Wang, Xinping Pan, Junjie Li, Ke Wang

{"title":"Dual-branch visible and infrared image fusion transformer","authors":"Xiao-jing Shi, Zhen Wang, Xinping Pan, Junjie Li, Ke Wang","doi":"10.1117/12.2691207","DOIUrl":"https://doi.org/10.1117/12.2691207","url":null,"abstract":"The process of combining features from two images of different sources to generate a new image is called image fusion. In order to adapt to different application scenarios, deep learning was widely used. However, existing fusion networks focued on the extraction of local information, neglected the long-term dependencies. In order to improve the defect, a fusion network based on Transformer was proposed. To accommodate our experimental equipment, we made some modifications to Transformer. A dual-branch autoencoder network was designed with detail and semantic branches, the fusion layer consists of CNN and Transformer, and the decoder reconstructs the features to get the fused image. A new loss function was proposed to train the network. Based on the results, an infrared feature compensation network was designed to enhance the fusion effect. In several metrics that we focus on, we compared with several other algorithms. As the experiments on some datasets, our method had improvement on SCD, SSIM and MS-SSIM metrics, and was basically equal to other algorithms on saliency-based structural similarity, weighted quality assessment, and dge-based structural similarity. From the experimental results, we can see that our method was feasible.","PeriodicalId":114868,"journal":{"name":"International Conference on Optoelectronic Information and Computer Engineering (OICE)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131960016","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

1.7μm modulated digital signal transmission through water fog using a pump-modulated fiber laser 利用泵浦调制光纤激光器通过水雾传输1.7μm调制数字信号

International Conference on Optoelectronic Information and Computer Engineering (OICE) Pub Date : 2023-08-01 DOI: 10.1117/12.2691304

Shuang He, Peng Zhang, Qi Li, Y. Ning, Yang Liu, Hao Yu, Tong Wu, Shoufeng Tong, Huilin Jiang

引用次数: 0

CotNet target tracking algorithm based on attention mechanism and context-awareness 基于注意机制和上下文感知的CotNet目标跟踪算法

International Conference on Optoelectronic Information and Computer Engineering (OICE) Pub Date : 2023-08-01 DOI: 10.1117/12.2691214

Xinping Pan, Zhen Wang, Xiao Shi, Jianing Li

{"title":"CotNet target tracking algorithm based on attention mechanism and context-awareness","authors":"Xinping Pan, Zhen Wang, Xiao Shi, Jianing Li","doi":"10.1117/12.2691214","DOIUrl":"https://doi.org/10.1117/12.2691214","url":null,"abstract":"In recent years, Siamese network algorithms based on deep learning classes have achieved better tracking accuracy and speed and become one of the research hotspots in the field of target tracking. However, the traditional Siamese network algorithm lacks a holistic view of the target and extracts shallow features, making it easy to lose track of the target in complex environments. The paper proposes a Contextual transformer network for visual recognition (CotNet) target tracking algorithm based on attentional mechanisms and contextual awareness to address this. The paper innovatively uses the CotNet50 network as the backbone network and adopts a residual network variant design scheme with a self-attention mechanism, which can enhance the feature representation capability of the network model and improve the performance of the algorithm. In addition, to handle changes in appearance during target tracking, an efficient channel attention module, and a global contextual feature module are embedded in the backbone network branch to enhance the network's overall perception of the target and improve the algorithm's tracking accuracy. The experimental results of this paper's algorithm on the VOT2018 data show that the accuracy, robustness, and EAO (Expected Average Overlap) are improved by 7.3%, 13.95%, and 11.9% respectively compared to SiamFC. It has good tracking results when dealing with complex scenes on the OTB100 dataset.","PeriodicalId":114868,"journal":{"name":"International Conference on Optoelectronic Information and Computer Engineering (OICE)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130297092","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

An active mmWave antenna based on tunable zero-mode resonances 一种基于可调谐零模共振的有源毫米波天线

International Conference on Optoelectronic Information and Computer Engineering (OICE) Pub Date : 2023-08-01 DOI: 10.1117/12.2691191

Ji-gang Cao, Yunlong Gu, Yong Luo

引用次数: 0

Development of new ultra-large aperture optical remote sensing imaging technology 新型超大孔径光学遥感成像技术的发展

International Conference on Optoelectronic Information and Computer Engineering (OICE) Pub Date : 2023-08-01 DOI: 10.1117/12.2691298

Ruize Niu, Xiyang Zhi, Shikai Jiang, Wei Zhang, J. Gong

引用次数: 0

Signal analysis of bistatic arc array SAR data with an accelerated moving transmitter 加速移动发射机下双基地弧阵SAR数据的信号分析

International Conference on Optoelectronic Information and Computer Engineering (OICE) Pub Date : 2023-08-01 DOI: 10.1117/12.2691284

Zhen Qin, Wei Xu, Pingping Huang, W. Tan, Yaolong Qi, Zhiqi Gao

引用次数: 0

Illumination analysis and optimization for a fast detection device of lube oil wear debris 润滑油磨损碎片快速检测装置的照明分析与优化

International Conference on Optoelectronic Information and Computer Engineering (OICE) Pub Date : 2023-08-01 DOI: 10.1117/12.2691280

Hong Xiao, Xu Fan, Song Feng, Jun Tan

引用次数: 0

Design of monitoring thickness and speed of cylindrical part based on laser self-mixing interference in a single-channel system during external grinding 基于激光自混合干涉的单通道外圆磨削厚度和速度监测系统的设计

International Conference on Optoelectronic Information and Computer Engineering (OICE) Pub Date : 2023-08-01 DOI: 10.1117/12.2691325

Wu Sun, Zhuo Yang, Guo Feng, Zeqing Guo

{"title":"Design of monitoring thickness and speed of cylindrical part based on laser self-mixing interference in a single-channel system during external grinding","authors":"Wu Sun, Zhuo Yang, Guo Feng, Zeqing Guo","doi":"10.1117/12.2691325","DOIUrl":"https://doi.org/10.1117/12.2691325","url":null,"abstract":"We design a simultaneous measurement of the thickness and speed to monitor mechanical cylindrical parts during external grinding based on a laser self-mixing interference in a single-channel system. If the wavelength is modulated via the laser-injecting-current to generate a frequency shifting corresponding to the rising- and falling- edge of the triangular modulated function. The Doppler frequency caused by the cylindrical part is split into rising- and falling- edge frequencies by the frequency shifting due to wavelength variations. The expressions of the measurement are derived via the derivative of the phase’s polynomial based on the emission-intensity expressions. The frequency shifting is related to the modulation function and the thickness of the cylindrical part. The rising- and falling- edge frequencies of the laser self-mixing interference obtained from the spectrum are used for calculating the Doppler frequency and the frequency shifting for estimating the thickness and the rotation speed of a cylindrical part during external grinding and the results show a good standard derivation less than 10−3 .","PeriodicalId":114868,"journal":{"name":"International Conference on Optoelectronic Information and Computer Engineering (OICE)","volume":"08 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125009084","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