Pub Date : 2017-07-31DOI: 10.1109/CLEOPR.2017.8119003
J. Ono, M. Hsu, Yuma Honda, A. Maeda, Fumiki Hanafuji, X. Du, H. Mori, Takashi Nakayama, O. Koyama, T. Endo, M. Yamada
We developed a 1.7 pm band external cavity laser (ECL) that can supply an output power of over 0 dBm in the 1650 to 1740 nm wavelength region, and applied it to a near infrared spectroscopy system to evaluate the ethanol concentration of several commercially available distilled spirits. The evaluation of the distilled spirits was successful because the measured concentrations were less than the labeled ethanol concentrations on the bottles.
{"title":"Newly developed 1.7 μm band external cavity laser and its application to evaluation of ethanol concentration in distilled spirits","authors":"J. Ono, M. Hsu, Yuma Honda, A. Maeda, Fumiki Hanafuji, X. Du, H. Mori, Takashi Nakayama, O. Koyama, T. Endo, M. Yamada","doi":"10.1109/CLEOPR.2017.8119003","DOIUrl":"https://doi.org/10.1109/CLEOPR.2017.8119003","url":null,"abstract":"We developed a 1.7 pm band external cavity laser (ECL) that can supply an output power of over 0 dBm in the 1650 to 1740 nm wavelength region, and applied it to a near infrared spectroscopy system to evaluate the ethanol concentration of several commercially available distilled spirits. The evaluation of the distilled spirits was successful because the measured concentrations were less than the labeled ethanol concentrations on the bottles.","PeriodicalId":6655,"journal":{"name":"2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)","volume":"41 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2017-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89388342","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 : 2017-07-31DOI: 10.1109/CLEOPR.2017.8118752
Y. Nakajima, Akiko Nishiyam, S. Yoshida, Takuya Hariki, K. Minoshima
A long-fiber-based ring resonator for repetition rate multiplication of a fiber-based optical frequency comb has been demonstrated. Mode filtering of a 48.73 MHz repetition rate fiber-based comb generates a 243.65 MHz frequency comb with a multiplication factor of 5.
{"title":"Mode-filtering of a fiber-based optical frequency comb with long-fiber-based ring resonator for repetition rate multiplication","authors":"Y. Nakajima, Akiko Nishiyam, S. Yoshida, Takuya Hariki, K. Minoshima","doi":"10.1109/CLEOPR.2017.8118752","DOIUrl":"https://doi.org/10.1109/CLEOPR.2017.8118752","url":null,"abstract":"A long-fiber-based ring resonator for repetition rate multiplication of a fiber-based optical frequency comb has been demonstrated. Mode filtering of a 48.73 MHz repetition rate fiber-based comb generates a 243.65 MHz frequency comb with a multiplication factor of 5.","PeriodicalId":6655,"journal":{"name":"2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)","volume":"29 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2017-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89698913","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 : 2017-07-31DOI: 10.1109/CLEOPR.2017.8118959
Shou-fei Gao, Ying‐ying Wang, Pu Wang
We report a silica based nodeless hollow-core fiber guiding in the mid-infrared spectral range with low transmission loss of 50 dB/km at 2.45 μm and 130 dB/km at 3 μm, broad transmission bandwidth from 1.6 μm to 3.35 μm and single mode profile.
{"title":"Silica-based modeless hollow-core fiber for broadband mid-IR guidance","authors":"Shou-fei Gao, Ying‐ying Wang, Pu Wang","doi":"10.1109/CLEOPR.2017.8118959","DOIUrl":"https://doi.org/10.1109/CLEOPR.2017.8118959","url":null,"abstract":"We report a silica based nodeless hollow-core fiber guiding in the mid-infrared spectral range with low transmission loss of 50 dB/km at 2.45 μm and 130 dB/km at 3 μm, broad transmission bandwidth from 1.6 μm to 3.35 μm and single mode profile.","PeriodicalId":6655,"journal":{"name":"2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)","volume":"127 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2017-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74186345","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 : 2017-07-31DOI: 10.1109/CLEOPR.2017.8118910
Yingjun Zhou, Jing Yu, Tianhang Chen, Yiwei Shi, N. Chi, Liangming Xiong, Jie Luo
For the first time, we demonstrated transparent 1.16Gbit/s commercial LEDs based visible light transmission from free space to special designed ULEAPS fiber using an Ag/AgI coated hollow waveguide for visible light beam shaping. VLC is no longer restrained by line of sight which can help solve continuous growth of data rate demand over the next decades.
{"title":"Seamless VLC and ULEAPS fiber transmission employing tapered Ag/AgI coated hollow waveguide based beam shaping","authors":"Yingjun Zhou, Jing Yu, Tianhang Chen, Yiwei Shi, N. Chi, Liangming Xiong, Jie Luo","doi":"10.1109/CLEOPR.2017.8118910","DOIUrl":"https://doi.org/10.1109/CLEOPR.2017.8118910","url":null,"abstract":"For the first time, we demonstrated transparent 1.16Gbit/s commercial LEDs based visible light transmission from free space to special designed ULEAPS fiber using an Ag/AgI coated hollow waveguide for visible light beam shaping. VLC is no longer restrained by line of sight which can help solve continuous growth of data rate demand over the next decades.","PeriodicalId":6655,"journal":{"name":"2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)","volume":"30 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2017-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73657249","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 : 2017-07-31DOI: 10.1109/CLEOPR.2017.8118955
Jongseok Kim, SeungTaek Kim, HyungTae Kim, Sungbok Kang, H. Jeong, Hyundon Jung
Defective regions of LED epi-wafers and chip-wafers could be observed by a photoluminescence (PL) imaging method. As the defective regions contain high density nonradiative recombination centers, the LED chips with defective regions showed different optical properties from those of LEDs with no defective regions found by PL imaging. At low optical excitation power levels, the PL properties were influenced by nonradiative recombination dominantly. Similar phenomena were observed from electroluminescence (EL) properties at low electrical excitation levels. Research results on the similarity and difference between PL and EL properties of LED chips are presented.
{"title":"Photoluminescence and electroluminescence properties of GaN-based LED chips with defective regions at low excitation levels","authors":"Jongseok Kim, SeungTaek Kim, HyungTae Kim, Sungbok Kang, H. Jeong, Hyundon Jung","doi":"10.1109/CLEOPR.2017.8118955","DOIUrl":"https://doi.org/10.1109/CLEOPR.2017.8118955","url":null,"abstract":"Defective regions of LED epi-wafers and chip-wafers could be observed by a photoluminescence (PL) imaging method. As the defective regions contain high density nonradiative recombination centers, the LED chips with defective regions showed different optical properties from those of LEDs with no defective regions found by PL imaging. At low optical excitation power levels, the PL properties were influenced by nonradiative recombination dominantly. Similar phenomena were observed from electroluminescence (EL) properties at low electrical excitation levels. Research results on the similarity and difference between PL and EL properties of LED chips are presented.","PeriodicalId":6655,"journal":{"name":"2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)","volume":"25 7","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2017-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72605449","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 : 2017-07-31DOI: 10.1109/CLEOPR.2017.8118974
Abdul Khaleque, Harolde T. Hattori, J. Osório, C. Cordeiro, Marcos A. R. Franco
This paper proposes a new and flexible approach to control the electric field enhancement of bow-tie nano-antennas by integrating them on the lateral of a ∼ 9 μm tapered optical fiber. The device may find applications in bio-sensing and imaging.
{"title":"Nano-antennas on tapered fiber: A new and flexible approach","authors":"Abdul Khaleque, Harolde T. Hattori, J. Osório, C. Cordeiro, Marcos A. R. Franco","doi":"10.1109/CLEOPR.2017.8118974","DOIUrl":"https://doi.org/10.1109/CLEOPR.2017.8118974","url":null,"abstract":"This paper proposes a new and flexible approach to control the electric field enhancement of bow-tie nano-antennas by integrating them on the lateral of a ∼ 9 μm tapered optical fiber. The device may find applications in bio-sensing and imaging.","PeriodicalId":6655,"journal":{"name":"2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)","volume":"5 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2017-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77559455","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 : 2017-07-31DOI: 10.1109/CLEOPR.2017.8119048
Jiachen Wang, D. Yeom, Sang Bae Lee, Kwanil Lee
An all-fiberized, in-band pumped Ho-doped fiber laser is presented. The laser is pumped by an in-house built Tm-doped fiber laser operating at 1.95 μm, and its operation wavelength is stabilized by a high-reflection (HR) FBG at 2.1 μm. 18.1 W output at 2.1 μm is generated by the laser, with a slope efficiency of 74.7 %.
{"title":"All-fiberized, in-band pumped Ho-doped fiber laser operating at 2.1 μm","authors":"Jiachen Wang, D. Yeom, Sang Bae Lee, Kwanil Lee","doi":"10.1109/CLEOPR.2017.8119048","DOIUrl":"https://doi.org/10.1109/CLEOPR.2017.8119048","url":null,"abstract":"An all-fiberized, in-band pumped Ho-doped fiber laser is presented. The laser is pumped by an in-house built Tm-doped fiber laser operating at 1.95 μm, and its operation wavelength is stabilized by a high-reflection (HR) FBG at 2.1 μm. 18.1 W output at 2.1 μm is generated by the laser, with a slope efficiency of 74.7 %.","PeriodicalId":6655,"journal":{"name":"2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)","volume":"34 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2017-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78843937","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 : 2017-07-31DOI: 10.1109/CLEOPR.2017.8118632
K. Tanizawa, Keijiro Suzuki, K. Ikeda, S. Namiki, H. Kawashima
An ultra-compact Si-wire reconfigurable finite impulse response (FIR) filter with 16 taps is reported. Targeting Nyquist spectrum, we successfully demonstrate bandwidth-tunable optical filtering for pass bandwidth of 30, 40, and 50 GHz.
{"title":"Silicon photonic bandwidth-tunable filter based on 16-tap finite impulse response","authors":"K. Tanizawa, Keijiro Suzuki, K. Ikeda, S. Namiki, H. Kawashima","doi":"10.1109/CLEOPR.2017.8118632","DOIUrl":"https://doi.org/10.1109/CLEOPR.2017.8118632","url":null,"abstract":"An ultra-compact Si-wire reconfigurable finite impulse response (FIR) filter with 16 taps is reported. Targeting Nyquist spectrum, we successfully demonstrate bandwidth-tunable optical filtering for pass bandwidth of 30, 40, and 50 GHz.","PeriodicalId":6655,"journal":{"name":"2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)","volume":"28 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2017-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77460059","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 : 2017-07-31DOI: 10.1109/CLEOPR.2017.8118991
W. Ni, P. Lu, Deming Liu, Jiangshan Zhang
A low frequency fiber acoustic sensor based on the transduction of 10nm thickness graphene diaphragm has been experimentally demonstrated. The ultra thin graphene diaphragm is used as a reflecting surface to form an extrinsic Fabry-Perot interferometer. The diameter of the graphene diaphragm is selected as 125 pm, thus the resonant frequency of 25958Hz is obtained. The sensitivity of the acoustic pressure can be as high as 43.5dB re 1 V/Pa@60Hz. Moreover, the minimum detectable acoustic pressure of 171.6pPa/Hz1/2@60Hz is achieved. The compact structure, simple manufacture and low cost fiber acoustic sensor can be realized.
实验证明了一种基于10nm厚度石墨烯薄膜转导的低频光纤声传感器。超薄石墨烯薄膜用作反射表面，形成外源法布里-珀罗干涉仪。石墨烯薄膜的直径选择为125 pm，得到的谐振频率为25958Hz。声压灵敏度可高达43.5dB re 1 V/Pa@60Hz。最小可探测声压为171.6pPa/Hz1/2@60Hz。可实现结构紧凑、制作简单、成本低廉的光纤声传感器。
{"title":"Graphene diaphragm-based extrinsic Fabry-Perot interferometer for low frequency acoustic sensing","authors":"W. Ni, P. Lu, Deming Liu, Jiangshan Zhang","doi":"10.1109/CLEOPR.2017.8118991","DOIUrl":"https://doi.org/10.1109/CLEOPR.2017.8118991","url":null,"abstract":"A low frequency fiber acoustic sensor based on the transduction of 10nm thickness graphene diaphragm has been experimentally demonstrated. The ultra thin graphene diaphragm is used as a reflecting surface to form an extrinsic Fabry-Perot interferometer. The diameter of the graphene diaphragm is selected as 125 pm, thus the resonant frequency of 25958Hz is obtained. The sensitivity of the acoustic pressure can be as high as 43.5dB re 1 V/Pa@60Hz. Moreover, the minimum detectable acoustic pressure of 171.6pPa/Hz1/2@60Hz is achieved. The compact structure, simple manufacture and low cost fiber acoustic sensor can be realized.","PeriodicalId":6655,"journal":{"name":"2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)","volume":"5 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2017-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91101081","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 : 2017-07-31DOI: 10.1109/CLEOPR.2017.8118878
Changqing Huang, Jin Xu, Xinyong Dong, S. Zhuang
In this paper, a tunable and cascaded Brillouin-erbium random fiber laser (RFL) has been proposed and experimentally investigated. The scheme of a half-open cavity is used to provide random distributed feedback (RDFB). The results show the proposed RFL has one to four Stokes lines when 980 nm pump power increases from 130 mW to 297 mW and Brillouin pump is equal to 2 mW. Output lasing wavelengths can be tuned by changing Brillouin pump wavelengths. The effect of fiber lengths used as RDFB on output lasing power has also been detected.
{"title":"Tunable and cascaded Brillouin-erbium random fiber laser","authors":"Changqing Huang, Jin Xu, Xinyong Dong, S. Zhuang","doi":"10.1109/CLEOPR.2017.8118878","DOIUrl":"https://doi.org/10.1109/CLEOPR.2017.8118878","url":null,"abstract":"In this paper, a tunable and cascaded Brillouin-erbium random fiber laser (RFL) has been proposed and experimentally investigated. The scheme of a half-open cavity is used to provide random distributed feedback (RDFB). The results show the proposed RFL has one to four Stokes lines when 980 nm pump power increases from 130 mW to 297 mW and Brillouin pump is equal to 2 mW. Output lasing wavelengths can be tuned by changing Brillouin pump wavelengths. The effect of fiber lengths used as RDFB on output lasing power has also been detected.","PeriodicalId":6655,"journal":{"name":"2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)","volume":"501 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2017-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86825624","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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