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companion:Oa智能音箱
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作者 Minsong Cho Subin Kim +1 位作者 woojin shin HyoRyung Choi 《五金科技》 2022年第5期73-73,共1页
Oa是一个帮助你睡眠的伴音扬声器。作为同伴演讲者,允许同伴与Oa交互,而不是单向通信。Oa在白天听外面的声音,在晚上使用它们来产生有助于睡眠的白噪声。此外,它还为同伴提供了适合心率和温暖度的振动,以便在Oa和同伴之间形成更深的联系... Oa是一个帮助你睡眠的伴音扬声器。作为同伴演讲者,允许同伴与Oa交互,而不是单向通信。Oa在白天听外面的声音,在晚上使用它们来产生有助于睡眠的白噪声。此外,它还为同伴提供了适合心率和温暖度的振动,以便在Oa和同伴之间形成更深的联系,并且同伴可以与Oa一起睡得更香,同伴将有情绪治疗和更舒适的床。 展开更多
关键词 扬声器 白噪声 智能音箱 演讲者 单向通信 睡眠
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Characteristics of WDM Couplers Based on 80 μm Cladding Fiber 被引量:1
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作者 Hyunsook shin woojin shin +4 位作者 Manjung Han Kyoungrok Kim Seungryong Han Yunsong Jeong K. Oh 《光学学报》 EI CAS CSCD 北大核心 2003年第S1期277-278,共2页
We have fabricated 1310/1550 and 1480/1550nm WDM couplers using a fiber of 80μm cladding diameter, whose tapering length is shortened by 4~8mm for the identical coupling strength compared to those of 125μm cladding ... We have fabricated 1310/1550 and 1480/1550nm WDM couplers using a fiber of 80μm cladding diameter, whose tapering length is shortened by 4~8mm for the identical coupling strength compared to those of 125μm cladding fibers. We also report their splicing loss to conventional single mode fibers. 展开更多
关键词 WDM m Cladding Fiber be in of Characteristics of WDM Couplers Based on 80 on
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Gain Flattening Filter for Hybrid Sb-Doped EDFA Using All-Fiber Mach-Zehnder Interferometers
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作者 Manjung Han Youngeun Im +2 位作者 woojin shin Uh-Chan Ryu K. Oh 《光学学报》 EI CAS CSCD 北大核心 2003年第S1期27-28,共2页
We demonstrate a novel gain-flattening filter based on all fiber Mach-Zehnder interferometers for Sb-doped silica hybrid EDFA. A gain flatness of better than 0.9dB has been achieved for three concatenated filters in C... We demonstrate a novel gain-flattening filter based on all fiber Mach-Zehnder interferometers for Sb-doped silica hybrid EDFA. A gain flatness of better than 0.9dB has been achieved for three concatenated filters in C-band. 展开更多
关键词 EDFA in In of for Gain Flattening Filter for Hybrid Sb-Doped EDFA Using All-Fiber Mach-Zehnder Interferometers SB
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