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Real-time in-situ measurement method of marine sliding bearing wear based on chirped fiber Bragg grating 基于啁啾光纤光栅的船舶滑动轴承磨损实时原位测量方法
4区 工程技术
Optical Engineering Pub Date : 2023-10-27 DOI: 10.1117/1.oe.63.3.031002
Bin Liu, Shanshan Zhang, Jiaqi Jing, Bo Tian, Yan Wang, Mingguang Shan, Zhi Zhong
{"title":"Real-time in-situ measurement method of marine sliding bearing wear based on chirped fiber Bragg grating","authors":"Bin Liu, Shanshan Zhang, Jiaqi Jing, Bo Tian, Yan Wang, Mingguang Shan, Zhi Zhong","doi":"10.1117/1.oe.63.3.031002","DOIUrl":"https://doi.org/10.1117/1.oe.63.3.031002","url":null,"abstract":"","PeriodicalId":19561,"journal":{"name":"Optical Engineering","volume":"26 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136317202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Cost-efficient radio over fiber system based on 21-tuple frequency binary phase-shift keying millimeter-wave generation without precoding 基于无预编码的21元频二相移键控毫米波产生的低成本光纤无线电系统
4区 工程技术
Optical Engineering Pub Date : 2023-10-27 DOI: 10.1117/1.oe.62.10.106102
Hui Zhou, Wangman Li, Yuan Tan, Zhigao Deng, Ming Chen
{"title":"Cost-efficient radio over fiber system based on 21-tuple frequency binary phase-shift keying millimeter-wave generation without precoding","authors":"Hui Zhou, Wangman Li, Yuan Tan, Zhigao Deng, Ming Chen","doi":"10.1117/1.oe.62.10.106102","DOIUrl":"https://doi.org/10.1117/1.oe.62.10.106102","url":null,"abstract":"","PeriodicalId":19561,"journal":{"name":"Optical Engineering","volume":"274 1-2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136262618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Spectral demodulation method for high fineness F-P sensors 高精细度F-P传感器的光谱解调方法
4区 工程技术
Optical Engineering Pub Date : 2023-10-27 DOI: 10.1117/1.oe.63.3.031003
Bin Liu, Hanqing Song, Yan Wang, Lei Liu, Mingguang Shan, Zhi Zhong, Lei Yu
{"title":"Spectral demodulation method for high fineness F-P sensors","authors":"Bin Liu, Hanqing Song, Yan Wang, Lei Liu, Mingguang Shan, Zhi Zhong, Lei Yu","doi":"10.1117/1.oe.63.3.031003","DOIUrl":"https://doi.org/10.1117/1.oe.63.3.031003","url":null,"abstract":"We propose a white-light interferometric demodulation algorithm for high-finesse fiber-optic F-P sensors, in order to improve the demodulation accuracy and the dynamic range encountered in traditional demodulation techniques. The interferometric spectral signal of the high-finesse F-P cavity was converted to the frequency domain and then a more accurate cavity length was estimated based on full phase on higher-order components. A detailed theoretical analysis was operated. A high-finesse F-P temperature sensor based on a silicon diaphragm was fabricated and tested to verify the proposed method. The demodulation accuracy increases with the increase of order, and the anti-noise performance is improved. For the third-order component, the optical path difference sensitivity obtained by this algorithm is 0.231 ± 0.0188 μm / ° C, and the average error rate of cavity length demodulation value is 0.0152%. The proposed algorithm is applicable to demodulate the high-finesse F-P cavities in the light source bandwidth of 1525 to 1575 nm, providing high accuracy and improved anti-noise performance.","PeriodicalId":19561,"journal":{"name":"Optical Engineering","volume":"7 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136261788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Expedient hyperspectral reflectance estimation using in situ pavement reference materials 利用现场路面参考材料进行高光谱反射估计
4区 工程技术
Optical Engineering Pub Date : 2023-10-26 DOI: 10.1117/1.oe.62.10.103102
Randall A. Pietersen, Brian M. Robinson, Melissa S. Beauregard, Herbert H. Einstein
{"title":"Expedient hyperspectral reflectance estimation using in situ pavement reference materials","authors":"Randall A. Pietersen, Brian M. Robinson, Melissa S. Beauregard, Herbert H. Einstein","doi":"10.1117/1.oe.62.10.103102","DOIUrl":"https://doi.org/10.1117/1.oe.62.10.103102","url":null,"abstract":"When fielding near-surface hyperspectral imaging systems for computer vision applications, raw data from a sensor are often corrected to reflectance before analysis. This research presents an expedient and flexible methodology for performing spectral reflectance estimation using in situ asphalt cement concrete or Portland cement concrete pavement as a reference material. Then, to evaluate this reflectance estimation method’s utility for computer vision applications, four datasets are generated to train machine learning models for material classification: (1) a raw signal dataset, (2) a normalized dataset, (3) a reflectance dataset corrected with a standard reference material (polytetrafluoroethylene), and (4) a reflectance dataset corrected with a pavement reference material. Various machine learning algorithms are trained on each of the four datasets and all converge to excellent training accuracy (>94 % ). Models trained on the raw or normalized signals, however, did not exceed 70% accuracy when tested against new data captured under different illumination conditions, while models trained using either reflectance dataset saw almost no drop between training and testing accuracy. These results quantify the importance of reflectance correction in machine learning workflows using hyperspectral data, while also confirming practical viability of the proposed reflectance correction method for computer vision applications.","PeriodicalId":19561,"journal":{"name":"Optical Engineering","volume":"41 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136381919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Hybrid-structured photonic crystal fiber for propagating vortex beams by multiple-core channels 多芯通道传输涡旋光束的混合结构光子晶体光纤
4区 工程技术
Optical Engineering Pub Date : 2023-10-26 DOI: 10.1117/1.oe.62.10.106101
Xiaohui Wang, Yongze Yu, Haoyu Gu, Dongdong Deng, Yang Wang, Shuai Mao, Yingxiong Song, Fufei Pang, Liyun Zhuang, Song Yang, Xiaofeng He, Chao Wang, Tiezhu Zhu, Yudong Yang
{"title":"Hybrid-structured photonic crystal fiber for propagating vortex beams by multiple-core channels","authors":"Xiaohui Wang, Yongze Yu, Haoyu Gu, Dongdong Deng, Yang Wang, Shuai Mao, Yingxiong Song, Fufei Pang, Liyun Zhuang, Song Yang, Xiaofeng He, Chao Wang, Tiezhu Zhu, Yudong Yang","doi":"10.1117/1.oe.62.10.106101","DOIUrl":"https://doi.org/10.1117/1.oe.62.10.106101","url":null,"abstract":"","PeriodicalId":19561,"journal":{"name":"Optical Engineering","volume":"24 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134907201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Interleaved bidirectional angled multimode interferometer for wavelength division (de)multiplexings 用于波分(解)复用的交错双向角度多模干涉仪
4区 工程技术
Optical Engineering Pub Date : 2023-10-23 DOI: 10.1117/1.oe.62.10.107101
Zanyun Zhang, Jiaming Xing, Beiju Huang, Tianjun Liu, Kaixin Zhang, Meixin Li, Hao Jiang, Qixin Wang
{"title":"Interleaved bidirectional angled multimode interferometer for wavelength division (de)multiplexings","authors":"Zanyun Zhang, Jiaming Xing, Beiju Huang, Tianjun Liu, Kaixin Zhang, Meixin Li, Hao Jiang, Qixin Wang","doi":"10.1117/1.oe.62.10.107101","DOIUrl":"https://doi.org/10.1117/1.oe.62.10.107101","url":null,"abstract":"We propose and experimentally demonstrate a bidirectional angled multimode interferometer (Bi-AMMI) for interleaved wavelength division multiplexing applications. The spectral response of the 2 × 4 Bi-AMMI is obtained using an eigenmode expansion method, including the cross coupling between the input and output ports at the same side of the multimode waveguide. To verify our design, both the standalone and interleaved Bi-AMMIs were fabricated and measured. The Bi-AMMI exhibits an insertion loss of 0.99 to 1.21 dB, and the unwanted cross coupling is lower than −20 dB. The interleaved device exhibits a measured optical loss of 4.77 to 5.02 dB, and the average crosstalk is calculated to be −18 dB.","PeriodicalId":19561,"journal":{"name":"Optical Engineering","volume":"55 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135367198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Opto-thermo-mechanical phenomena in satellite free-space optical communications: survey and challenges 卫星自由空间光通信中的光热力学现象:综述与挑战
4区 工程技术
Optical Engineering Pub Date : 2023-10-19 DOI: 10.1117/1.oe.63.4.041206
Mario Badás, Pierre Piron, Jasper Bouwmeester, Jérôme Loicq, Hans Kuiper, Eberhard Gill
{"title":"Opto-thermo-mechanical phenomena in satellite free-space optical communications: survey and challenges","authors":"Mario Badás, Pierre Piron, Jasper Bouwmeester, Jérôme Loicq, Hans Kuiper, Eberhard Gill","doi":"10.1117/1.oe.63.4.041206","DOIUrl":"https://doi.org/10.1117/1.oe.63.4.041206","url":null,"abstract":"Growing interest in free-space optical communication, due to the high bandwidth and security provided by these links, has generated the necessity of designing high-performance satellite terminals. In order to develop these terminals, the opto-thermo-mechanical phenomena that appear in the space environment and their effect on optical communication links have to be understood in detail. A review of the opto-thermo-mechanical phenomena occurring in spaceborne terminals is presented, describing the relevance of each of them. The methods found to compute the impact on the communication performance due to opto-thermo-mechanical phenomena are collected by building the bridge between the optical and communication performance parameters. Finally, techniques available to mitigate the detrimental effects of these phenomena are classified, and the relevant research challenges are identified.","PeriodicalId":19561,"journal":{"name":"Optical Engineering","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135779067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Optical design of a multiscale imager in 8 to 12 μm spectral band using monocentric lens 单心透镜8 ~ 12 μm波段多尺度成像仪的光学设计
4区 工程技术
Optical Engineering Pub Date : 2023-10-19 DOI: 10.1117/1.oe.62.10.105104
Manish Uniyal, Ranabir Mandal, Pramod Kumar Sharma
{"title":"Optical design of a multiscale imager in 8 to 12 μm spectral band using monocentric lens","authors":"Manish Uniyal, Ranabir Mandal, Pramod Kumar Sharma","doi":"10.1117/1.oe.62.10.105104","DOIUrl":"https://doi.org/10.1117/1.oe.62.10.105104","url":null,"abstract":"Long-wave infrared (LWIR) imagers utilize self emission in 8 to 12 μm spectral band to image objects passively even during night time when the reflected radiation is not available. These are mostly used for surveillance purpose requiring large field of view (FOV). Achieving wide FOV and high-resolution image of megapixel (MP) order requires higher format detectors that are not readily available in LWIR. Further, the optical performance gets limited by fundamental limits of space bandwidth factor. An LWIR monocentric multiscale imager is proposed. The designed lens operates at f / 1.5 with effective focal length (EFL) of 50 mm and effective pixel count of 3.9 MP. It covers 80 deg × 16 deg FOV over five detector arrays. We discuss the basics of multiscale imaging, the specific issues in LWIR band and their mitigation, optical design approach and finally analyze the optical performance of the designed lens.","PeriodicalId":19561,"journal":{"name":"Optical Engineering","volume":"161 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135730467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 reversible PNOR logic gate using semiconductor optical amplifiers at 100 Gb/s 全光可逆PNOR逻辑门采用半导体光放大器，速度为100gb /s
4区 工程技术
Optical Engineering Pub Date : 2023-10-19 DOI: 10.1117/1.oe.62.10.108101
Amer Kotb, Kyriakos E. Zoiros, Eng Hwa Yap
{"title":"All-optical reversible PNOR logic gate using semiconductor optical amplifiers at 100 Gb/s","authors":"Amer Kotb, Kyriakos E. Zoiros, Eng Hwa Yap","doi":"10.1117/1.oe.62.10.108101","DOIUrl":"https://doi.org/10.1117/1.oe.62.10.108101","url":null,"abstract":"The loss of one bit of information causes energy dissipation in traditional logic gates at ambient temperature, but when the number of bits is greater, as in high-speed networks, the heat released by them is so great that it impacts performance and shortens component lifetime. Using reversible logic gates, which ideally result in zero energy dissipation, these problems in ordinary Boolean functions can be solved. At 100 Gb/s, an all-optical three-input-output reversible PNOR logic gate is numerically simulated in this article using semiconductor optical amplifiers (SOAs)-based switching units. The quality factor (Q-factor) and the bit error rate (BER) are the metrics against which the performance of reversible PNOR operation is assessed. The results indicate the feasibility of realizing all-optically the PNOR gate at 100 Gb/s since the SOA-based scheme, along with correct logic operation, manages to achieve more than acceptable Q-factor and BER.","PeriodicalId":19561,"journal":{"name":"Optical Engineering","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135731794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Infrared lens units using chalcogenide glass with high transmission properties (Erratum) 红外透镜单元采用具有高透射性能的硫系玻璃(勘误)
4区 工程技术
Optical Engineering Pub Date : 2023-10-18 DOI: 10.1117/1.oe.62.10.109801
Yoshimasa Matsushita, Fumio Sato, Noriaki Masuda, Masafumi Kimata
{"title":"Infrared lens units using chalcogenide glass with high transmission properties (Erratum)","authors":"Yoshimasa Matsushita, Fumio Sato, Noriaki Masuda, Masafumi Kimata","doi":"10.1117/1.oe.62.10.109801","DOIUrl":"https://doi.org/10.1117/1.oe.62.10.109801","url":null,"abstract":"Abstract. Erratum corrects misspelling in an author name.","PeriodicalId":19561,"journal":{"name":"Optical Engineering","volume":"183 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135888305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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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