Pub Date : 2021-09-26DOI: 10.23919/MOC52031.2021.9598145
H. Fukano, T. Mukai
Multipoint sensing measurement with fine resolution was developed using multimode interference optical fibers, working as refractive index (RI) sensors. They were operated with a fine calibration technique using a wavelength selective optical filter and defined-wavelength-light from a tunable laser source. Average RI resolution is 4.3 ×10−6 RIU under multipoint sensing conditions.
{"title":"Multipoint Sensing System with a Fine Refractive Index Resolution by Combining Multimode-Interference-Sensors and Wavelength Selection Configuration","authors":"H. Fukano, T. Mukai","doi":"10.23919/MOC52031.2021.9598145","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598145","url":null,"abstract":"Multipoint sensing measurement with fine resolution was developed using multimode interference optical fibers, working as refractive index (RI) sensors. They were operated with a fine calibration technique using a wavelength selective optical filter and defined-wavelength-light from a tunable laser source. Average RI resolution is 4.3 ×10−6 RIU under multipoint sensing conditions.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"1991 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":"125514662","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/MOC52031.2021.9598077
K. Maru, Y. Yamamoto, K. Nakatsuhara
A grating coupler that employs multiple Nb2O5/SiO2 layers is designed to improve the input/output efficiency in the Nb2O5- based integrated probe for two-dimensional cross-sectional velocity distribution measurements. As the result of simulation, the efficiency was improved by increasing the number of the Nb2O5/SiO2 layers over the assumed input/output angles and wavelengths.
{"title":"Nb2O5-based Grating Coupler Employing Multiple Nb2O5/SiO2 Layers in Integrated Probe for Cross-Sectional Velocity Distribution Measurement","authors":"K. Maru, Y. Yamamoto, K. Nakatsuhara","doi":"10.23919/MOC52031.2021.9598077","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598077","url":null,"abstract":"A grating coupler that employs multiple Nb<inf>2</inf>O<inf>5</inf>/SiO<inf>2</inf> layers is designed to improve the input/output efficiency in the Nb<inf>2</inf>O<inf>5</inf>- based integrated probe for two-dimensional cross-sectional velocity distribution measurements. As the result of simulation, the efficiency was improved by increasing the number of the Nb<inf>2</inf>O<inf>5</inf>/SiO<inf>2</inf> layers over the assumed input/output angles and wavelengths.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"32 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":"121780077","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/MOC52031.2021.9598133
Hiroki Ishihara, Kai Matsuhisa, Kazuhiro Kurose, Y. Kawata, A. Sugita, Y. Inoue, T. Nakano
Quasi phase matching (QPM) crystals using GaN were designed and fabricated for the development of ultraviolet lasers. GaN-QPM crystals were fabricated by the double polarity selective area growth (DP-SAG). As a result of optical measurement using such fabricated crystals, second harmonic generation (SHG) due to phase matching was confirmed.
{"title":"Fabrication of GaN-QPM crystals for slab waveguide type wavelength conversion devices","authors":"Hiroki Ishihara, Kai Matsuhisa, Kazuhiro Kurose, Y. Kawata, A. Sugita, Y. Inoue, T. Nakano","doi":"10.23919/MOC52031.2021.9598133","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598133","url":null,"abstract":"Quasi phase matching (QPM) crystals using GaN were designed and fabricated for the development of ultraviolet lasers. GaN-QPM crystals were fabricated by the double polarity selective area growth (DP-SAG). As a result of optical measurement using such fabricated crystals, second harmonic generation (SHG) due to phase matching was confirmed.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"55 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":"116138986","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/MOC52031.2021.9598083
H. Masuda, Biswajit Biswas
We propose a novel, highly sensitive, and stable fiber-optic temperature sensing method that utilizes the temperature dependence of the gain of an amplified-spontaneous-emission feedback circuit. It is experimentally demonstrated that the method achieves a long-term temperature resolution of 0.0147 °C.
{"title":"Highly Sensitive and Stable Temperature Sensing Method Using Amplified-Spontaneous-Emission Feedback Circuit","authors":"H. Masuda, Biswajit Biswas","doi":"10.23919/MOC52031.2021.9598083","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598083","url":null,"abstract":"We propose a novel, highly sensitive, and stable fiber-optic temperature sensing method that utilizes the temperature dependence of the gain of an amplified-spontaneous-emission feedback circuit. It is experimentally demonstrated that the method achieves a long-term temperature resolution of 0.0147 °C.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"35 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":"115777799","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/MOC52031.2021.9598160
N. Akikusa, A. Sugiyama, T. Ochiai, T. Edamura, H. Furukawa
Mid-infrared Quantum cascade lasers (QCLs) opens the way for many applications thanks to “fingerprint region of molecules”. In recent years, the emergence of external cavity broadband wavelength-swept QCLs have been providing new benefits not found in FTIR such as compactness and faster wavelength scanning due to MOEMS technology.
{"title":"MOEMS technology based compact and robust broadband wavelength-swept mid-infrared quantum cascade laser","authors":"N. Akikusa, A. Sugiyama, T. Ochiai, T. Edamura, H. Furukawa","doi":"10.23919/MOC52031.2021.9598160","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598160","url":null,"abstract":"Mid-infrared Quantum cascade lasers (QCLs) opens the way for many applications thanks to “fingerprint region of molecules”. In recent years, the emergence of external cavity broadband wavelength-swept QCLs have been providing new benefits not found in FTIR such as compactness and faster wavelength scanning due to MOEMS technology.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"4 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":"126492391","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/MOC52031.2021.9598158
Fan Yang, Masaki Fukunaga, K. Edamatsu, H. Yokoyama, H. Yamada, N. Matsuda
A compact heralded single photon source is required in quantum technologies. For an integrated chip-scale photon pair source, we demonstrate the generation of correlated photon pairs from a silicon micro-ring resonator with a semiconductor laser source.
{"title":"Correlated Photon Pairs Generation from a Silicon Micro-Ring resonator with a Gain-Switched Laser Diode","authors":"Fan Yang, Masaki Fukunaga, K. Edamatsu, H. Yokoyama, H. Yamada, N. Matsuda","doi":"10.23919/MOC52031.2021.9598158","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598158","url":null,"abstract":"A compact heralded single photon source is required in quantum technologies. For an integrated chip-scale photon pair source, we demonstrate the generation of correlated photon pairs from a silicon micro-ring resonator with a semiconductor laser source.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"26 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":"133445008","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/MOC52031.2021.9598125
K. Vanmol, A. Kandeel, G. Y. Belay, H. Thienpont, H. Ottevaere, J. Van Erps
We present the characterization of micro-lenses that are fabricated with the technology of two-photon polymerization (2PP)-based direct laser writing. We fabricate multiple lenses with different exposure parameters, after which we use interferometric characterization tools to investigate their geometry and optical performance to optimize the fabrication strategy.
{"title":"Two-Photon Polymerization-based Direct Laser Writing and Characterization of Micro-Lenses for Optical Interconnect Applications","authors":"K. Vanmol, A. Kandeel, G. Y. Belay, H. Thienpont, H. Ottevaere, J. Van Erps","doi":"10.23919/MOC52031.2021.9598125","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598125","url":null,"abstract":"We present the characterization of micro-lenses that are fabricated with the technology of two-photon polymerization (2PP)-based direct laser writing. We fabricate multiple lenses with different exposure parameters, after which we use interferometric characterization tools to investigate their geometry and optical performance to optimize the fabrication strategy.","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":"132414366","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/MOC52031.2021.9598019
Y. Sawada, T. Fujisawa, Takanori Sato, K. Saitoh
We propose a switchable mode converter which converts TE0 mode into any one of the first four TE modes. The device includes TE0-TE1 mode converter designed by wavefront matching method. Mode conversion efficiencies are larger than -0.39 dB and modal crosstalks are lower than -23 dB at 1550 nm.
{"title":"Switchable Mode Converter for Four-Mode MDM System Assisted by Passive Mode Controlling Device Designed by Wavefront Matching Method","authors":"Y. Sawada, T. Fujisawa, Takanori Sato, K. Saitoh","doi":"10.23919/MOC52031.2021.9598019","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598019","url":null,"abstract":"We propose a switchable mode converter which converts TE0 mode into any one of the first four TE modes. The device includes TE0-TE1 mode converter designed by wavefront matching method. Mode conversion efficiencies are larger than -0.39 dB and modal crosstalks are lower than -23 dB at 1550 nm.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"12 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":"116178447","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/MOC52031.2021.9598124
V. Prajzler, Kyungtaek Min, Sunghwan Kim, P. Nekvindová
We report about the optical properties of the silk fibroin layers fabricated onto the polymer foils and allyl diglycol carbonate plastic substrate. Waveguiding properties were measured by m-line spectroscopy and optical losses by the fibre scanning method. The optical losses were lower than 0.30 dB/cm at 846.4 and 1549.1 nm.
{"title":"Silk Fibroin Optical Planar Waveguides Fabricated on Acrylic Polymer Foil","authors":"V. Prajzler, Kyungtaek Min, Sunghwan Kim, P. Nekvindová","doi":"10.23919/MOC52031.2021.9598124","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598124","url":null,"abstract":"We report about the optical properties of the silk fibroin layers fabricated onto the polymer foils and allyl diglycol carbonate plastic substrate. Waveguiding properties were measured by m-line spectroscopy and optical losses by the fibre scanning method. The optical losses were lower than 0.30 dB/cm at 846.4 and 1549.1 nm.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"11 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":"122901271","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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