Pub Date : 2021-09-26DOI: 10.23919/MOC52031.2021.9598137
Z. Fan, Y. Hinokuma, Haisong Jiang, K. Hamamoto
We demonstrate high saturation output power under high temperature (75°C) by using active-MMI SOA on quantum dot. Significant enhancement of 15 dBm saturation output power was confirmed successfully.
{"title":"Active-MMI SOA on Quantum-Dots toward High Saturation Output Power under High Temperature","authors":"Z. Fan, Y. Hinokuma, Haisong Jiang, K. Hamamoto","doi":"10.23919/MOC52031.2021.9598137","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598137","url":null,"abstract":"We demonstrate high saturation output power under high temperature (75°C) by using active-MMI SOA on quantum dot. Significant enhancement of 15 dBm saturation output power was confirmed successfully.","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":"127251401","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/MOC52031.2021.9598013
S. Ueda, O. Sugihara
We demonstrated the quantitative evaluation of optical characteristics especially modal power distribution at a connection between graded-index (GI) plastic optical fibers (POFs) when an axial shift occurs. The results show promising evaluation characteristics in future in-vehicle optical communication components.
{"title":"Evaluation of modal power distribution of graded-index plastic optical fiber connections","authors":"S. Ueda, O. Sugihara","doi":"10.23919/MOC52031.2021.9598013","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598013","url":null,"abstract":"We demonstrated the quantitative evaluation of optical characteristics especially modal power distribution at a connection between graded-index (GI) plastic optical fibers (POFs) when an axial shift occurs. The results show promising evaluation characteristics in future in-vehicle optical communication components.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"50 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":"129595420","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/MOC52031.2021.9598030
Y. Takiguchi, Hiroshi Tanaka, Tsubasa Watanabe, Yoshiyuki Ohtake, H. Toyoda
We developed a liquid-crystal spatial light modulator with high laser power capacity for industrial ultrafast pulse lasers to demonstrate innovative manufacturing and fabrication techniques in smart manufacturing of post-pandemic era. The phase performance characteristic of the device was obtained with a 60 W ultrafast laser and 200W continuous wave laser.
{"title":"Phase characteristic of phase-only spatial light modulator under high-power laser irradiation","authors":"Y. Takiguchi, Hiroshi Tanaka, Tsubasa Watanabe, Yoshiyuki Ohtake, H. Toyoda","doi":"10.23919/MOC52031.2021.9598030","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598030","url":null,"abstract":"We developed a liquid-crystal spatial light modulator with high laser power capacity for industrial ultrafast pulse lasers to demonstrate innovative manufacturing and fabrication techniques in smart manufacturing of post-pandemic era. The phase performance characteristic of the device was obtained with a 60 W ultrafast laser and 200W continuous wave laser.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"29 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":"124089747","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/MOC52031.2021.9598100
Han Zhou, S. Heinsalu, Y. Matsushima, H. Ishikawa, K. Utaka
Simulation and experiment results show that changing waveguide widths of arrayed waveguide grating instead of changing lengths for obtaining larger channel window size the footprint of the whole device area can be reduced by about 10 %.
{"title":"Footprint reduction of arrayed waveguided grating by waveguide width variation","authors":"Han Zhou, S. Heinsalu, Y. Matsushima, H. Ishikawa, K. Utaka","doi":"10.23919/MOC52031.2021.9598100","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598100","url":null,"abstract":"Simulation and experiment results show that changing waveguide widths of arrayed waveguide grating instead of changing lengths for obtaining larger channel window size the footprint of the whole device area can be reduced by about 10 %.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"38 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":"134020911","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/MOC52031.2021.9598078
H. Fujii, T. Aoki, Yuki Inoue, Iori Terabayashi, K. Kobayashi, Masao Watanabe
We examined the photoacoustic pressures in colloidal suspensions at different volume fractions by modelling light scattering and thermodynamic properties for photoacoustic imaging. The light scattering properties strongly influence the pressure compared with the thermodynamic properties when the region of interest is deeply inside the medium.
{"title":"Numerical Modelling of Initial Photoacoustic Pressure in Colloidal Suspensions for Photoacoustic Imaging","authors":"H. Fujii, T. Aoki, Yuki Inoue, Iori Terabayashi, K. Kobayashi, Masao Watanabe","doi":"10.23919/MOC52031.2021.9598078","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598078","url":null,"abstract":"We examined the photoacoustic pressures in colloidal suspensions at different volume fractions by modelling light scattering and thermodynamic properties for photoacoustic imaging. The light scattering properties strongly influence the pressure compared with the thermodynamic properties when the region of interest is deeply inside the medium.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"13 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":"129380982","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/MOC52031.2021.9598043
Taira Giordani
Structured light such as beams carrying angular momentum attracted a flurry of interest in optics in recent years. In this work we present relevant results regarding the study of the so-called vector vortex beams, their propagation, manipulation, detection and their applications for several tasks in classical and quantum optics.
{"title":"Vector Vortex Beams Propagation, Manipulation, and Detection in Classical and Quantum regime","authors":"Taira Giordani","doi":"10.23919/MOC52031.2021.9598043","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598043","url":null,"abstract":"Structured light such as beams carrying angular momentum attracted a flurry of interest in optics in recent years. In this work we present relevant results regarding the study of the so-called vector vortex beams, their propagation, manipulation, detection and their applications for several tasks in classical and quantum optics.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"3 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":"134619039","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/MOC52031.2021.9598054
Wenbin He, M. Pang, D. Yeh, P. Russell
We review the principles and the implementation of optoacoustic mode-locking based on stimulated Raman-like scattering in PCF. Optically-driven acoustic vibrations in the few-µm-sized PCF-core creates a self-sustained temporal optomechanical lattice in a mode-locked laser cavity, enabling self-stabilized high-harmonic mode-locking as well as various highly-ordered compound pulse-patterns. (50 words).
{"title":"Optoacoustic mode-locking based on micro-core photonic crystal fibre","authors":"Wenbin He, M. Pang, D. Yeh, P. Russell","doi":"10.23919/MOC52031.2021.9598054","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598054","url":null,"abstract":"We review the principles and the implementation of optoacoustic mode-locking based on stimulated Raman-like scattering in PCF. Optically-driven acoustic vibrations in the few-µm-sized PCF-core creates a self-sustained temporal optomechanical lattice in a mode-locked laser cavity, enabling self-stabilized high-harmonic mode-locking as well as various highly-ordered compound pulse-patterns. (50 words).","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":"124115480","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/MOC52031.2021.9598091
Shenghong Ye, M. Che, K. Kato
We studied a high-speed high-reliability wavelength switching at 400-GHz width, which is the maximum tuning range of a single DFB laser in the tunable DFB laser array (TLA). By improving the accuracy of current/temperature cooperative feedback control, we achieved a high-speed wavelength switching time of 130 ms as well as a low injection current of 52 mA.
{"title":"Experimental Demonstration of Full-Range High-Speed High-Reliability Wavelength Switching at DFB Laser with Current/Temperature Cooperative Control","authors":"Shenghong Ye, M. Che, K. Kato","doi":"10.23919/MOC52031.2021.9598091","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598091","url":null,"abstract":"We studied a high-speed high-reliability wavelength switching at 400-GHz width, which is the maximum tuning range of a single DFB laser in the tunable DFB laser array (TLA). By improving the accuracy of current/temperature cooperative feedback control, we achieved a high-speed wavelength switching time of 130 ms as well as a low injection current of 52 mA.","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":"115037776","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/MOC52031.2021.9598093
Shota Nakagawa, Yukinobu Imamura, Yasushi Hirata, Koji Maeda, M. Arai
We investigate the effect of Zn doping on surface roughness during InAs growth on GaAs substrate by metal organic vapor phase epitaxy (MOVPE). The surface roughness was measured by atomic force microscope (AFM) and scanning electron microscope (SEM). We confirmed the Zn doping was effective to improve the surface roughness.
{"title":"Zn Doping Effect on Surface Morphology of Metamorphic InAs on GaAs Grown by MOVPE","authors":"Shota Nakagawa, Yukinobu Imamura, Yasushi Hirata, Koji Maeda, M. Arai","doi":"10.23919/MOC52031.2021.9598093","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598093","url":null,"abstract":"We investigate the effect of Zn doping on surface roughness during InAs growth on GaAs substrate by metal organic vapor phase epitaxy (MOVPE). The surface roughness was measured by atomic force microscope (AFM) and scanning electron microscope (SEM). We confirmed the Zn doping was effective to improve the surface roughness.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"25 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":"128424910","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/MOC52031.2021.9598055
Zhipeng Wu, Y. Zhai, Qilong Wang
Here, an efficient narrow-band optical photodetector is realized by using hexagonal nanodisk array based on a P-N junction. The photodetector can effectively separate incident spectrum. The wavelength of the maximum responsivity in different array is red-shift with the increase of the period. The maximum detection efficiency can reach 95%.
{"title":"Color-selective Photodetector Based on Hexagonal-Lattice Silver Nanodisk Array","authors":"Zhipeng Wu, Y. Zhai, Qilong Wang","doi":"10.23919/MOC52031.2021.9598055","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598055","url":null,"abstract":"Here, an efficient narrow-band optical photodetector is realized by using hexagonal nanodisk array based on a P-N junction. The photodetector can effectively separate incident spectrum. The wavelength of the maximum responsivity in different array is red-shift with the increase of the period. The maximum detection efficiency can reach 95%.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"10 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":"129537378","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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