Pub Date : 2021-05-01DOI: 10.1364/cleo_si.2021.stu2f.1
Shenyu Zhu, Yong Meng Sua, Patrick Rehain, Yu-Ping Huang
We demonstrated a non-line-of-sight imaging and tracking system with picosecond optical-gated single photon detection. It sees through obscureness while achiev-ing high resolution NLOS 3D imaging and position retrieval.
{"title":"Non-line-of-sight imaging with picosecond optical-gated single photon detection","authors":"Shenyu Zhu, Yong Meng Sua, Patrick Rehain, Yu-Ping Huang","doi":"10.1364/cleo_si.2021.stu2f.1","DOIUrl":"https://doi.org/10.1364/cleo_si.2021.stu2f.1","url":null,"abstract":"We demonstrated a non-line-of-sight imaging and tracking system with picosecond optical-gated single photon detection. It sees through obscureness while achiev-ing high resolution NLOS 3D imaging and position retrieval.","PeriodicalId":384075,"journal":{"name":"2021 Conference on Lasers and Electro-Optics (CLEO)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130397539","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}
Pub Date : 2021-05-01DOI: 10.1364/cleo_qels.2021.fw3n.8
Narayanan Rengaswamy, K. Seshadreesan, S. Guha, H. Pfister
We design a quantum joint-detection receiver for binary-phase-shift-keyed optical communications using belief propagation with quantum messages. For an exemplary tree code, the receiver attains the block-Helstrom limit in discriminating the codewords and achieves superadditive capacity.
{"title":"A Belief Propagation-based Quantum Joint-Detection Receiver for Superadditive Optical Communications","authors":"Narayanan Rengaswamy, K. Seshadreesan, S. Guha, H. Pfister","doi":"10.1364/cleo_qels.2021.fw3n.8","DOIUrl":"https://doi.org/10.1364/cleo_qels.2021.fw3n.8","url":null,"abstract":"We design a quantum joint-detection receiver for binary-phase-shift-keyed optical communications using belief propagation with quantum messages. For an exemplary tree code, the receiver attains the block-Helstrom limit in discriminating the codewords and achieves superadditive capacity.","PeriodicalId":384075,"journal":{"name":"2021 Conference on Lasers and Electro-Optics (CLEO)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130537096","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}
Pub Date : 2021-05-01DOI: 10.1364/cleo_at.2021.jtu3a.50
P. Moroshkin, A. Nagar, Mengqiu Yu, B. Cai, Jimmy Xu
χ(2) is critical to applications, but its value is material-limited. We report on stress tuning and dramatical enhancement of χ(2) in an organic crystal, harvesting the molecular deformation and charge redistribution associated with its plasticity.
{"title":"Stress tuning and enhancement of optical nonlinearity in an organic crystal","authors":"P. Moroshkin, A. Nagar, Mengqiu Yu, B. Cai, Jimmy Xu","doi":"10.1364/cleo_at.2021.jtu3a.50","DOIUrl":"https://doi.org/10.1364/cleo_at.2021.jtu3a.50","url":null,"abstract":"χ(2) is critical to applications, but its value is material-limited. We report on stress tuning and dramatical enhancement of χ(2) in an organic crystal, harvesting the molecular deformation and charge redistribution associated with its plasticity.","PeriodicalId":384075,"journal":{"name":"2021 Conference on Lasers and Electro-Optics (CLEO)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126697903","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}
Pub Date : 2021-05-01DOI: 10.1364/cleo_at.2021.am1s.2
Yun Meng, Kai Zou, Nan Hu, Liang Xu, Xiaojian Lan, S. Steinhauer, S. Gyger, V. Zwiller, Xiaolong Hu
We demonstrate a fractal superconducting nanowire single-photon detector with 84% system efficiency at 1600 nm, 1.02 polarization sensitivity, and 29 ps timing resolution, which have never been simultaneously achieved before.
{"title":"Fractal Superconducting Nanowire Avalanche Photodetectors with 84% System Efficiency at 1600 nm, 1.02 Polarization Sensitivity, and 29 ps Timing Resolution","authors":"Yun Meng, Kai Zou, Nan Hu, Liang Xu, Xiaojian Lan, S. Steinhauer, S. Gyger, V. Zwiller, Xiaolong Hu","doi":"10.1364/cleo_at.2021.am1s.2","DOIUrl":"https://doi.org/10.1364/cleo_at.2021.am1s.2","url":null,"abstract":"We demonstrate a fractal superconducting nanowire single-photon detector with 84% system efficiency at 1600 nm, 1.02 polarization sensitivity, and 29 ps timing resolution, which have never been simultaneously achieved before.","PeriodicalId":384075,"journal":{"name":"2021 Conference on Lasers and Electro-Optics (CLEO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129033729","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}
Pub Date : 2021-05-01DOI: 10.1364/cleo_qels.2021.ftu4g.4
S. U. Shringarpure, C. M. Nunn, T. Pittman, J. Franson
Attenuating a quantum state using a beam splitter will introduce noise and decoherence. Here we show that heralding techniques can be used to attenuate number states or Schrödinger cat states without any noise or decoherence.
{"title":"Noiseless Attenuation of Nonclassical States of Light","authors":"S. U. Shringarpure, C. M. Nunn, T. Pittman, J. Franson","doi":"10.1364/cleo_qels.2021.ftu4g.4","DOIUrl":"https://doi.org/10.1364/cleo_qels.2021.ftu4g.4","url":null,"abstract":"Attenuating a quantum state using a beam splitter will introduce noise and decoherence. Here we show that heralding techniques can be used to attenuate number states or Schrödinger cat states without any noise or decoherence.","PeriodicalId":384075,"journal":{"name":"2021 Conference on Lasers and Electro-Optics (CLEO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123888585","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}
Pub Date : 2021-05-01DOI: 10.1364/cleo_at.2021.jtu3a.164
M. Welsch, Abhishek Singh, S. Winnerl, A. Pashkin, Ming Xu, Mengxia Li, M. Helm, H. Schneider
The efficiency of photoconductive terahertz emitters is improved by increasing the operating bias field and preventing the breakdown. We can apply ~ 120 kV/cm bias field by using external resistances in series to the emitter.
{"title":"Preventing the breakdown of photoconductive terahertz emitter at high bias-field operation","authors":"M. Welsch, Abhishek Singh, S. Winnerl, A. Pashkin, Ming Xu, Mengxia Li, M. Helm, H. Schneider","doi":"10.1364/cleo_at.2021.jtu3a.164","DOIUrl":"https://doi.org/10.1364/cleo_at.2021.jtu3a.164","url":null,"abstract":"The efficiency of photoconductive terahertz emitters is improved by increasing the operating bias field and preventing the breakdown. We can apply ~ 120 kV/cm bias field by using external resistances in series to the emitter.","PeriodicalId":384075,"journal":{"name":"2021 Conference on Lasers and Electro-Optics (CLEO)","volume":"147 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123334193","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}
Pub Date : 2021-05-01DOI: 10.1364/cleo_si.2021.sm3a.3
Reagan R. D. Weeks, Yu Zhang, C. Lecaplain, J. Yeak, S. S. Harilal, M. Phillips, R. Jones
A laser-induced plasma plume containing multiple atomic species is probed using dual-comb spectroscopy, and quantitative analysis is performed by fitting modelled absorption spectra to experimental spectra to obtain number densities and excitation temperatures.
{"title":"Time-Resolved Multispecies Analysis of a Laser-Induced Plasma using Dual-Comb Spectroscopy","authors":"Reagan R. D. Weeks, Yu Zhang, C. Lecaplain, J. Yeak, S. S. Harilal, M. Phillips, R. Jones","doi":"10.1364/cleo_si.2021.sm3a.3","DOIUrl":"https://doi.org/10.1364/cleo_si.2021.sm3a.3","url":null,"abstract":"A laser-induced plasma plume containing multiple atomic species is probed using dual-comb spectroscopy, and quantitative analysis is performed by fitting modelled absorption spectra to experimental spectra to obtain number densities and excitation temperatures.","PeriodicalId":384075,"journal":{"name":"2021 Conference on Lasers and Electro-Optics (CLEO)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123454897","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}
Pub Date : 2021-05-01DOI: 10.1364/cleo_at.2021.jtu3a.42
A. Rastegari, J. Diels
The plume produced by a ps UV laser is analyzed, with the aim of understanding the ultra-narrow (isotopically resolvable) re-absorption lines that we observed with this type of irradiation.
{"title":"Investigation of the plume generated in LIBS process induced by a ps UV laser","authors":"A. Rastegari, J. Diels","doi":"10.1364/cleo_at.2021.jtu3a.42","DOIUrl":"https://doi.org/10.1364/cleo_at.2021.jtu3a.42","url":null,"abstract":"The plume produced by a ps UV laser is analyzed, with the aim of understanding the ultra-narrow (isotopically resolvable) re-absorption lines that we observed with this type of irradiation.","PeriodicalId":384075,"journal":{"name":"2021 Conference on Lasers and Electro-Optics (CLEO)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123649875","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}
Pub Date : 2021-05-01DOI: 10.1364/cleo_si.2021.sw3d.2
Vahideh Ebrahimi, Jialei Tang, K. Y. Han
We demonstrate that non-diffracting light-sheet can be generated instantaneously by dispersing wavelengths of diode lasers or supercontinuum light source.
我们证明了通过分散二极管激光器或超连续光源的波长可以瞬间产生无衍射光片。
{"title":"Single-Shot Non-Diffracting Light-Sheet Microscopy by Dispersion of Light","authors":"Vahideh Ebrahimi, Jialei Tang, K. Y. Han","doi":"10.1364/cleo_si.2021.sw3d.2","DOIUrl":"https://doi.org/10.1364/cleo_si.2021.sw3d.2","url":null,"abstract":"We demonstrate that non-diffracting light-sheet can be generated instantaneously by dispersing wavelengths of diode lasers or supercontinuum light source.","PeriodicalId":384075,"journal":{"name":"2021 Conference on Lasers and Electro-Optics (CLEO)","volume":"15 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114199266","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}
Pub Date : 2021-05-01DOI: 10.1364/cleo_si.2021.sth1f.2
Yuchuan Fan, A. Udalcovs, X. Pang, C. Natalino, R. Schatz, M. Furdek, S. Popov, O. Ozolins
We exploit deep supervised learning and amplitude histograms of coherent optical signals captured before carrier phase recovery (CPR) to perform time-sensitive and accurate error vector magnitude (EVM) estimation for 32 Gbaud mQAM signal monitoring purposes.
{"title":"Deep Learning Assisted Pre-Carrier Phase Recovery EVM Estimation for Coherent Transmission Systems","authors":"Yuchuan Fan, A. Udalcovs, X. Pang, C. Natalino, R. Schatz, M. Furdek, S. Popov, O. Ozolins","doi":"10.1364/cleo_si.2021.sth1f.2","DOIUrl":"https://doi.org/10.1364/cleo_si.2021.sth1f.2","url":null,"abstract":"We exploit deep supervised learning and amplitude histograms of coherent optical signals captured before carrier phase recovery (CPR) to perform time-sensitive and accurate error vector magnitude (EVM) estimation for 32 Gbaud mQAM signal monitoring purposes.","PeriodicalId":384075,"journal":{"name":"2021 Conference on Lasers and Electro-Optics (CLEO)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114551392","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}