Pub Date : 2021-09-26DOI: 10.23919/MOC52031.2021.9598115
Keiichiro Shoda, Xiao He, Keiichiro Kozu, Haisong Jiang, K. Hamamoto
MMI like power coupler using nano-pixel exhibits unique “equivalent” input of, not only intensity, phase. The simulated results show equivalent input (intensity and phase) coupling capability, with 1/500 times compact foot-print.
{"title":"Demonstration of Equal Input (Intensity and Phase) MMI Like Power Coupler by using Nano-Pixel Structure","authors":"Keiichiro Shoda, Xiao He, Keiichiro Kozu, Haisong Jiang, K. Hamamoto","doi":"10.23919/MOC52031.2021.9598115","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598115","url":null,"abstract":"MMI like power coupler using nano-pixel exhibits unique “equivalent” input of, not only intensity, phase. The simulated results show equivalent input (intensity and phase) coupling capability, with 1/500 times compact foot-print.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128632230","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 : 2021-09-26DOI: 10.23919/MOC52031.2021.9598107
Y. Yoshizawa
Hamamatsu Photonics has been providing photomultiplier tubes for Neutrino physics experiments for long time. 20-inch photomultiplier tube is one of them. It was used for Kamiokande and Super-Kamiokande and will be used for Hyper-Kamiokande. Developmental stories for Kamiokande, Super-Kamiokande and Hyper-Kamiokande are described in this paper.
{"title":"Development of 20-inch Photomultiplier Tube for Neutrino Experiments","authors":"Y. Yoshizawa","doi":"10.23919/MOC52031.2021.9598107","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598107","url":null,"abstract":"Hamamatsu Photonics has been providing photomultiplier tubes for Neutrino physics experiments for long time. 20-inch photomultiplier tube is one of them. It was used for Kamiokande and Super-Kamiokande and will be used for Hyper-Kamiokande. Developmental stories for Kamiokande, Super-Kamiokande and Hyper-Kamiokande are described in this paper.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126371109","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 : 2021-09-26DOI: 10.23919/MOC52031.2021.9598051
Mao Xiaojie, Miyamoto Tomoyuki
Optical wireless power transmission (OWPT) systems are attractive photonic systems. However, OWPT has safety problems such as unexpected and unnecessary light irradiation. In this report, an improved safety system based on a depth camera is constructed, and response time of less than 60 ms and detection range limit are confirmed.
{"title":"Safety System of Optical Wireless Power Transmission by Suppressing Light Beam Irradiation to Human using Depth Camera","authors":"Mao Xiaojie, Miyamoto Tomoyuki","doi":"10.23919/MOC52031.2021.9598051","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598051","url":null,"abstract":"Optical wireless power transmission (OWPT) systems are attractive photonic systems. However, OWPT has safety problems such as unexpected and unnecessary light irradiation. In this report, an improved safety system based on a depth camera is constructed, and response time of less than 60 ms and detection range limit are confirmed.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116662488","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 : 2021-09-26DOI: 10.23919/MOC52031.2021.9598008
C. Patil, H. Dalir, Hao Wang, V. Sorger
Here, a high-speed optical modulator with large bandwidth, robust athermal operation, and complementary metal-oxide semiconductor (CMOS) compatibility is presented for photonics integrated systems and computing applications. Using the magical critical coupling loss, we have reduced the power consumption by four times compared with the conventional design.
{"title":"1fJ/bit Coupling-based ITO Monolithic Modulator in Integrated Photonics","authors":"C. Patil, H. Dalir, Hao Wang, V. Sorger","doi":"10.23919/MOC52031.2021.9598008","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598008","url":null,"abstract":"Here, a high-speed optical modulator with large bandwidth, robust athermal operation, and complementary metal-oxide semiconductor (CMOS) compatibility is presented for photonics integrated systems and computing applications. Using the magical critical coupling loss, we have reduced the power consumption by four times compared with the conventional design.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124496534","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 : 2021-09-26DOI: 10.23919/MOC52031.2021.9598031
S. Saito
We discuss angular-momentum conservation law for spin and orbital angular momentum for a vortex generated by a silicon photonic gear, which is a ring resonator with an inner grating. The gear is coupled to two bus-waveguides to control the chirality of the emitted vortex out of the gear.
{"title":"Conservation Law of Spin & Orbital Angular Momentum for a Vortex Generated by a Silicon Photonic Gear","authors":"S. Saito","doi":"10.23919/MOC52031.2021.9598031","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598031","url":null,"abstract":"We discuss angular-momentum conservation law for spin and orbital angular momentum for a vortex generated by a silicon photonic gear, which is a ring resonator with an inner grating. The gear is coupled to two bus-waveguides to control the chirality of the emitted vortex out of the gear.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134317143","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 : 2021-09-26DOI: 10.23919/MOC52031.2021.9598042
Yunjie Wang, Haisong Jiang, K. Hamamoto
Space-mode compressor by using nano-pixel optical waveguide is proposed. Simulated results show more than 50% compressions of the input light for 0th and 1st order-modes.
{"title":"Proposal of space-mode “compressor” by using nano-pixel","authors":"Yunjie Wang, Haisong Jiang, K. Hamamoto","doi":"10.23919/MOC52031.2021.9598042","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598042","url":null,"abstract":"Space-mode compressor by using nano-pixel optical waveguide is proposed. Simulated results show more than 50% compressions of the input light for 0<sup>th</sup> and 1<sup>st</sup> order-modes.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"546 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131864001","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 : 2021-09-26DOI: 10.23919/MOC52031.2021.9598151
T. Lühmann, S. Pazzagna, J. Meijer
Due to their extraordinary properties, colour centres in diamond can be used for quantum information as well as for sensor tasks. Up to now the NV centre has been in focus. In this paper, techniques to optimize the color creation yield and methods to find new centres are considered.
{"title":"Color centers with exceptional properties in diamond","authors":"T. Lühmann, S. Pazzagna, J. Meijer","doi":"10.23919/MOC52031.2021.9598151","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598151","url":null,"abstract":"Due to their extraordinary properties, colour centres in diamond can be used for quantum information as well as for sensor tasks. Up to now the NV centre has been in focus. In this paper, techniques to optimize the color creation yield and methods to find new centres are considered.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"301 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130051759","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 : 2021-09-26DOI: 10.23919/MOC52031.2021.9598026
W. Osten
Digitization and digital transition are frequently used terms in modern communication. Facts as the transition of the classical Data-Internet to the Internet of Things IoT, and Industrial Internet, respectively, are more and more influencing all technologies and thus it is quite appropriate to think about the future of metrology in such a changing environment. In this paper we discuss the state of the art, the challenges, and the perspectives of optical metrology in times of digital transition.
{"title":"Optical Metrology and Sensing in Times of Digital Transition","authors":"W. Osten","doi":"10.23919/MOC52031.2021.9598026","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598026","url":null,"abstract":"Digitization and digital transition are frequently used terms in modern communication. Facts as the transition of the classical Data-Internet to the Internet of Things IoT, and Industrial Internet, respectively, are more and more influencing all technologies and thus it is quite appropriate to think about the future of metrology in such a changing environment. In this paper we discuss the state of the art, the challenges, and the perspectives of optical metrology in times of digital transition.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133157947","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 : 2021-09-26DOI: 10.23919/MOC52031.2021.9598032
Ryohei Ueda, Akari Watanabe, Keisuke Ozawa, K. Kintaka, K. Nishio, Toshiki Kusuura, J. Inoue, S. Ura
A planer filter was fabricated for reflecting an incident diverging free-space wave back to a free-space wave focusing to the diverging point with high wavelength selectivity. The filter was used as an external mirror of a diode laser. Wavelength stabilization was demonstrated experimentally.
{"title":"Laser-wavelength stabilization by a focusing cavity-resonator-integrated guided-mode resonance filter","authors":"Ryohei Ueda, Akari Watanabe, Keisuke Ozawa, K. Kintaka, K. Nishio, Toshiki Kusuura, J. Inoue, S. Ura","doi":"10.23919/MOC52031.2021.9598032","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598032","url":null,"abstract":"A planer filter was fabricated for reflecting an incident diverging free-space wave back to a free-space wave focusing to the diverging point with high wavelength selectivity. The filter was used as an external mirror of a diode laser. Wavelength stabilization was demonstrated experimentally.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122269563","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 : 2021-09-26DOI: 10.23919/MOC52031.2021.9598141
Nana Ota, Tomohiro Miyauchi, H. Shimizu
We demonstrated local heating in Co loaded Si plasmonic waveguides by measuring the resistance change upon inputting TM mode light. Temperature rise is proportional to the light intensity with clear polarization dependence. Local heaters in this study are applicable in a wide range of optical devices in photonic integrated circuits.
{"title":"221K Local Heating in a Co Loaded Si Plasmonic Waveguide","authors":"Nana Ota, Tomohiro Miyauchi, H. Shimizu","doi":"10.23919/MOC52031.2021.9598141","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598141","url":null,"abstract":"We demonstrated local heating in Co loaded Si plasmonic waveguides by measuring the resistance change upon inputting TM mode light. Temperature rise is proportional to the light intensity with clear polarization dependence. Local heaters in this study are applicable in a wide range of optical devices in photonic integrated circuits.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126658331","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}
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