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实验演示100 Gbaud Delta-Sigma调制信号O波段传输 实验演示100 Gbaud Delta-Sigma调制信号O波段传输
4区 物理与天体物理
Acta Optica Sinica Pub Date : 2023-01-01 DOI: 10.3788/aos230765
杨雄伟 Yang Xiongwei, 魏怡 Wei Yi, 龙健宇 Long Jianyu, 余建军 Yu Jianjun
{"title":"实验演示100 Gbaud Delta-Sigma调制信号O波段传输","authors":"杨雄伟 Yang Xiongwei, 魏怡 Wei Yi, 龙健宇 Long Jianyu, 余建军 Yu Jianjun","doi":"10.3788/aos230765","DOIUrl":"https://doi.org/10.3788/aos230765","url":null,"abstract":"为了解决传输高阶正交幅度调制（QAM）信号时的非线性损伤问题，提出了一种基于Delta-Sigma调制（DSM）的高阶QAM传输系统。通过采用1-bit量化的DSM，成功将携带有高阶QAM的离散多音调制（DMT）信号量化编码为开关键控（OOK）信号，实现了高阶QAM信号在O波段强度调制/直接检测（IM/DD）系统中的传输。由于DSM拥有较高的量化信噪比，系统最高支持满足软判决2.4×10-2阈值的4096QAM信号的传输。特别地，通过采用预均衡技术，成功实现了50/100 Gbaud DSM信号分别在O波段的50/15 km的传输。实验演示了高速DSM信号在O波段的传输系统，为高阶QAM信号在IM/DD链路的传输提供了解决方案，同时也为未来基于DSM技术的高速移动前传方案设计提供了参考。","PeriodicalId":7103,"journal":{"name":"Acta Optica Sinica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135659740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
基于双步符合计数的纠缠光量子成像方法 基于双步符合计数的纠缠光量子成像方法
4区 物理与天体物理
Acta Optica Sinica Pub Date : 2023-01-01 DOI: 10.3788/aos230439
周牧 Zhou Mu, 嵇长银 Ji Changyin, 王勇 Wang Yong, 曹静阳 Cao Jingyang
{"title":"基于双步符合计数的纠缠光量子成像方法","authors":"周牧 Zhou Mu, 嵇长银 Ji Changyin, 王勇 Wang Yong, 曹静阳 Cao Jingyang","doi":"10.3788/aos230439","DOIUrl":"https://doi.org/10.3788/aos230439","url":null,"abstract":"为了提高纠缠光量子成像效率，本文采用双步符合计数法快速获取目标成像信息，降低纠缠光量子成像的时间开销。首先，利用透镜和波片组合对激光器产生的泵浦光进行调制，提高周期极化磷酸氧钛钾（PPKTP）晶体自发参量下转换的效率；然后，通过数字微镜器件（DMD）选取测距区域，构造单光子时间脉冲序列差值；其次，利用该差值完成局部符合计数以得到信号和参考光路的延时差；再次，通过控制DMD选取成像区域，对单光子时间脉冲序列进行修正，并利用修正后的序列完成全局符合计数；最后，将符合计数值与灰度值进行映射，得到目标的量子图像。此外，通过与经典量子成像结果相比较，分析了目标距离、测距区域大小和单像素曝光时间对成像结果的影响，同时搭建了实际的量子成像光路以验证本文方法的有效性。","PeriodicalId":7103,"journal":{"name":"Acta Optica Sinica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135659742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
衍射多焦点人工晶状体的设计与优化 衍射多焦点人工晶状体的设计与优化
4区 物理与天体物理
Acta Optica Sinica Pub Date : 2023-01-01 DOI: 10.3788/aos230610
董博 Dong Bo, 杨迎 Yang Ying, 薛常喜 Xue Changxi
{"title":"衍射多焦点人工晶状体的设计与优化","authors":"董博 Dong Bo, 杨迎 Yang Ying, 薛常喜 Xue Changxi","doi":"10.3788/aos230610","DOIUrl":"https://doi.org/10.3788/aos230610","url":null,"abstract":"衍射光学设计已经成为人工晶状体设计领域的新兴技术。本文首先分析了衍射多焦点人工晶状体的具体设计流程，提出了联合非球面衍射基底矫正像质的衍射多焦点人工晶状体设计；其次针对多焦点衍射光学元件相位结构提出并分析了基底参数对衍射效率的影响的数学模型；最后通过实例对人工晶状体设计中非球面衍射基底的影响作出了优化。结果表明，设计流程可用于设计高成像质量多焦点人工晶状体，基底影响模型可用于分析并优化衍射基底参数对衍射效率的影响。","PeriodicalId":7103,"journal":{"name":"Acta Optica Sinica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135662140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
少模光纤模式反射迈克尔孙干涉仪及其游标增敏应用 少模光纤模式反射迈克尔孙干涉仪及其游标增敏应用
4区 物理与天体物理
Acta Optica Sinica Pub Date : 2023-01-01 DOI: 10.3788/aos230520
武瑞妮 Wu Ruini, 林国辉 Lin Guohui, 吕海飞 Haifei Lü, 黎敏 Li Min, 李明钰 Li Mingyu, 王嘉赋 Wang Jiafu, 文晓艳 Wen Xiaoyan
{"title":"少模光纤模式反射迈克尔孙干涉仪及其游标增敏应用","authors":"武瑞妮 Wu Ruini, 林国辉 Lin Guohui, 吕海飞 Haifei Lü, 黎敏 Li Min, 李明钰 Li Mingyu, 王嘉赋 Wang Jiafu, 文晓艳 Wen Xiaoyan","doi":"10.3788/aos230520","DOIUrl":"https://doi.org/10.3788/aos230520","url":null,"abstract":"提出了一种少模光纤迈克尔孙干涉仪（MI）级联法布里-珀罗干涉仪（FPI）的游标增敏折射率传感器。少模光纤MI用作参考干涉仪，开放腔FPI作为传感干涉仪，解决了传统双FPI传感器的参考干涉仪制备复杂、可控性差的问题。仿真研究了单模-少模光纤错位量对少模光纤模式激发效率的影响，以及少模光纤长度对增敏倍数的影响。基于仿真优化参数制备了少模光纤MI-FPI传感器，并测试了其折射率响应特性，分析了增敏极限及限制因素。该传感器在1.3384~1.3412的折射率范围内的折射率灵敏度达到12466.956 nm/RIU（灵敏度单位），相对于无MI级联的单个FPI传感器提升了12.29倍，放大倍数可基于少模光纤长度灵活控制。该方法使传感器的增敏效果显著、增敏倍数可控、制备方法简单且光谱稳定性好，在折射率传感领域具有潜在的应用价值。","PeriodicalId":7103,"journal":{"name":"Acta Optica Sinica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135662324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
再现域模型相位补偿法提高液晶空间光调制器全息再现像质量研究 再现域模型相位补偿法提高液晶空间光调制器全息再现像质量研究
4区 物理与天体物理
Acta Optica Sinica Pub Date : 2023-01-01 DOI: 10.3788/aos230527
胡驰 Hu Chi, 张锦 Zhang Jin, 孙国斌 Sun Guobin, 蒋世磊 Jiang Shilei, 刘严严 Liu Yanyan
{"title":"再现域模型相位补偿法提高液晶空间光调制器全息再现像质量研究","authors":"胡驰 Hu Chi, 张锦 Zhang Jin, 孙国斌 Sun Guobin, 蒋世磊 Jiang Shilei, 刘严严 Liu Yanyan","doi":"10.3788/aos230527","DOIUrl":"https://doi.org/10.3788/aos230527","url":null,"abstract":"针对液晶空间光调制器（LC-SLM）全息再现结果受零级衍射光斑和本身黑栅效应影响，导致再现像光能利用率低和均匀性较差的问题，本文提出一种利用数字闪耀光栅对再现像进行偏离并结合全息再现域模型的相位补偿法，有效提高了再现像的均匀性。其主要原理为：在设计的相位全息图上加载一定周期的数字闪耀光栅后，根据再现区域的光强分布情况反推出补偿量，并将其和原物光波进行合成，重新计算相位全息图实现对再现结果的调整，在避免了零级衍射光斑影响的同时，提高了全息像的再现效果。通过对相位补偿量进行优化计算和仿真验证，并搭建全息再现光路，将补偿计算后的相位加载到空间光调制器（SLM）上进行再现实验验证和测试，实验结果表明，补偿后的再现像均匀性提高为原来的2倍，且光能利用率也有一定的提高。研究结果表明，本文所提出的再现域模型相位补偿法能有效提高SLM全息再现像的均匀性和光能利用率。因此该方法对基于SLM的全息再现或光场调控质量的提高具有一定的应用价值。","PeriodicalId":7103,"journal":{"name":"Acta Optica Sinica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135662325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
基于多层感知机的金属表面光度-结构光测量数据融合方法 基于多层感知机的金属表面光度-结构光测量数据融合方法
4区 物理与天体物理
Acta Optica Sinica Pub Date : 2023-01-01 DOI: 10.3788/aos230497
杨沅松 Yang Yuansong, 王晰 Wang Xi, 任明俊 Ren Mingjun
{"title":"基于多层感知机的金属表面光度-结构光测量数据融合方法","authors":"杨沅松 Yang Yuansong, 王晰 Wang Xi, 任明俊 Ren Mingjun","doi":"10.3788/aos230497","DOIUrl":"https://doi.org/10.3788/aos230497","url":null,"abstract":"提出一种基于多层感知机的金属表面光度-结构光测量数据融合算法。设计了融合面结构光与光度立体视觉两种测量原理的复合传感器，分别获得同一相机坐标系下的缺失点云及完整法向量多模态数据。为有效融合两种数据，设计了基于位置编码的多层感知机网络，以点云为形状约束，以法向量为纹理约束，实现金属表面完整的高精度三维重建。通过仿真和实验验证了所提方法的有效性。实验结果表明：该方法有效避免了法向量积分累计误差的问题，在获取完整点云的同时，测量精度相较于结构光测量系统提升了50.4%。","PeriodicalId":7103,"journal":{"name":"Acta Optica Sinica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135662347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
基于喷墨打印的银/纸复合结构拉曼增强研究 基于喷墨打印的银/纸复合结构拉曼增强研究
4区 物理与天体物理
Acta Optica Sinica Pub Date : 2023-01-01 DOI: 10.3788/aos221837
汤智谋 Tang Zhimou, 孙宁 Sun Ning, 张洁 Zhang Jie
{"title":"基于喷墨打印的银/纸复合结构拉曼增强研究","authors":"汤智谋 Tang Zhimou, 孙宁 Sun Ning, 张洁 Zhang Jie","doi":"10.3788/aos221837","DOIUrl":"https://doi.org/10.3788/aos221837","url":null,"abstract":"","PeriodicalId":7103,"journal":{"name":"Acta Optica Sinica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135686297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
神光-Ⅱ U装置的SBS背向散射角分辨诊断系统 神光-Ⅱ U装置的SBS背向散射角分辨诊断系统
4区 物理与天体物理
Acta Optica Sinica Pub Date : 2023-01-01 DOI: 10.3788/aos221987
赵闯 Zhao Chuang, 袁鹏 Yuan Peng, 李欣焱 Li Xinyan, 郑坚 Zheng Jian
{"title":"神光-Ⅱ U装置的SBS背向散射角分辨诊断系统","authors":"赵闯 Zhao Chuang, 袁鹏 Yuan Peng, 李欣焱 Li Xinyan, 郑坚 Zheng Jian","doi":"10.3788/aos221987","DOIUrl":"https://doi.org/10.3788/aos221987","url":null,"abstract":"","PeriodicalId":7103,"journal":{"name":"Acta Optica Sinica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135686299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
空间光学模拟计算的发展与应用 空间光学模拟计算的发展与应用
4区 物理与天体物理
Acta Optica Sinica Pub Date : 2023-01-01 DOI: 10.3788/aos231152
刘勇良 Liu Yongliang, 刘文玮 Liu Wenwei, 程化 Cheng Hua, 陈树琪 Chen Shuqi
{"title":"空间光学模拟计算的发展与应用","authors":"刘勇良 Liu Yongliang, 刘文玮 Liu Wenwei, 程化 Cheng Hua, 陈树琪 Chen Shuqi","doi":"10.3788/aos231152","DOIUrl":"https://doi.org/10.3788/aos231152","url":null,"abstract":"空间光学模拟计算具有大规模并行计算、低功耗和超快响应速度的信息处理优势，在图像处理、边缘检测和机器学习方面显示出巨大的应用潜力。本文回顾了空间光学模拟计算的发展，着重阐述了空间光学模拟计算结合超表面在不同理论模型及体系中的研究进展与应用，通过引入人工微结构替代传统大尺寸光学元件，推动空间光学模拟计算器件向微型化、集成化发展；总结了基于自旋轨道耦合、拓扑等物理效应的新型空间光学模拟计算最新进展，为实现超带宽高速信息处理提供了新思路；对空间光学模拟计算现有挑战和研究前景进行了分析和讨论。","PeriodicalId":7103,"journal":{"name":"Acta Optica Sinica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135152245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
干燥方法对人工制备生物气溶胶消光性能的影响 干燥方法对人工制备生物气溶胶消光性能的影响
4区 物理与天体物理
Acta Optica Sinica Pub Date : 2023-01-01 DOI: 10.3788/aos230942
王新宇 Wang Xinyu, 胡以华 Hu Yihua, 杨星 Yang Xing, 顾有林 Gu Youlin, 何海浩 He Haihao, 丁婉莹 Ding Wanying, 王鹏 Wang Peng
{"title":"干燥方法对人工制备生物气溶胶消光性能的影响","authors":"王新宇 Wang Xinyu, 胡以华 Hu Yihua, 杨星 Yang Xing, 顾有林 Gu Youlin, 何海浩 He Haihao, 丁婉莹 Ding Wanying, 王鹏 Wang Peng","doi":"10.3788/aos230942","DOIUrl":"https://doi.org/10.3788/aos230942","url":null,"abstract":"通过建立具有丰富结构细节的生物颗粒形态模型，利用Kramers-Kronig算法、离散偶极子近似方法和蒙特卡罗算法计算了冷冻干燥和热风烘干两种干燥方法对BB0819生物气溶胶消光性能的影响，并通过傅里叶变换和红外光谱方法分析了由两种干燥方法所得孢子形成的生物气溶胶内部组成和蛋白质结构的差异，进一步解释了消光性能变化的原因。通过气溶胶室实验证明了仿真结果的可靠性，实验结果显示：在中红外波段，选用冷冻干燥孢子所形成的生物气溶胶可在3 min内将平均透过率从11.95%降至9.14%；在远红外波段，选用热风烘干孢子所形成的生物气溶胶可在3 min内将平均透过率从34.38%降至26.03%。研究结果阐明了干燥方法对人工制备生物气溶胶消光性能的影响，为在制备过程中提升生物气溶胶消光性能提供了有效参考。","PeriodicalId":7103,"journal":{"name":"Acta Optica Sinica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135152254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","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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