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    • 3. 发明申请
    • DOUBLE-CORE OPTICAL FIBER
    • 双芯光纤
    • US20090041415A1
    • 2009-02-12
    • US12281469
    • 2007-03-23
    • Hiromasa TanobeYoshihisa Sakai
    • Hiromasa TanobeYoshihisa Sakai
    • G02B6/036
    • G02B6/03661G02B6/02042G02B6/02047G02B6/0283G02B6/03605G02B6/03616G02B6/03627
    • A double core optical fiber is provided, in which single mode signal light and multimode signal light can be transmitted and a multimode transmission of the signal light guided through the core can be reduced even when the optical fiber is bent. The double core optical fiber of the present invention includes a core (111) arranged on a central axis of the optical fiber and having a refractive index (112), a first cladding (121) arranged on the outer circumference of the core (111) and having a refractive index (122) smaller than the refractive index (112), and a second cladding arranged on the outer circumference of the first cladding (121) and having a refractive index (132) smaller than the refractive index (122). The core (111) functions as a core for single mode transmission, the core (111) and the first cladding (121) function as a core for multimode transmission, the first cladding (121) function as a cladding for the core for single mode transmission, and the second cladding (132) functions as a cladding for the core for multimode transmission.
    • 提供双芯光纤,其中可以传输单模信号光和多模信号光,并且即使当光纤弯曲时也可以减少通过芯引导的信号光的多模传输。 本发明的双芯光纤包括布置在光纤的中心轴上并具有折射率(112)的芯(111),布置在芯(111)的外圆周上的第一包层(121) 并且具有小于折射率(112)的折射率(122),以及布置在第一包层(121)的外圆周上并具有小于折射率(122)的折射率(132)的第二包层。 芯(111)用作单模传输的核心,芯(111)和第一包层(121)用作多模传输的核心,第一包层(121)用作用于单模的核的包层 传输,并且第二包层(132)用作用于多模传输的芯的包层。
    • 4. 发明授权
    • Light-controlled light modulator
    • 光控光调制器
    • US06753996B2
    • 2004-06-22
    • US09953796
    • 2001-09-17
    • Yasuo ShibataYasuhiro SuzukiYoshihisa SakaiYasumasa SuzakiAkira OkadaKazuto NoguchiRieko Sato
    • Yasuo ShibataYasuhiro SuzukiYoshihisa SakaiYasumasa SuzakiAkira OkadaKazuto NoguchiRieko Sato
    • G02F101
    • G02F1/3517G02F2/004
    • A light-controlled light modulator can achieve high-speed, low-loss wavelength conversion. Continuous light with a wavelength &lgr;j is launched into an MMI coupler via a port, and is split into two parts by the MMI coupler, which are led to a loop-type interferometer. In the loop-type interferometer, the two parts travel separately around the loop as clockwise traveling light and counterclockwise traveling light, are combined by the MMI coupler again via a filter-equipped phase modulator, thereby being emitted to the port. In this state, signal light &lgr;i(s) with a wavelength &lgr;i is launched into the filter-equipped phase modulator via a port. Even when the wavelength &lgr;i of the signal light &lgr;i(s) is equal to the wavelength &lgr;j of the wavelength converted output light, the wavelength conversion can be achieved with preventing noise from being mixed into the output light emitted from a port.
    • 光控光调制器可以实现高速,低损耗的波长转换。 具有波长lambdaj的连续光通过端口发射到MMI耦合器中,并由MMI耦合器分为两部分,其被引导到环型干涉仪。 在循环式干涉仪中,两个部件围绕环路分别作为顺时针行进光和逆时针方向的行进光,通过MMI耦合器再次通过配有滤波器的相位调制器组合,从而被发射到端口。 在这种状态下,具有波长lambdai的信号灯lambdai通过端口发射到装有滤波器的相位调制器中。 即使当信号光的波长长度等于波长转换的输出光的波长lambdaj时,也可以通过防止噪声混入从端口发出的输出光中来实现波长转换。
    • 7. 发明授权
    • Apparatus for regeneration of spent active carbon
    • 废活性炭再生装置
    • US4120644A
    • 1978-10-17
    • US780790
    • 1977-03-23
    • Kouichi NumasakiYoshihisa SakaiTakehiko NawaZenji MatsumotoNobutaka Ninomiya
    • Kouichi NumasakiYoshihisa SakaiTakehiko NawaZenji MatsumotoNobutaka Ninomiya
    • C02F1/28B01J20/34C01B31/08F27B15/10B01J8/12
    • C01B31/088
    • The present invention provides a double-cylinder type apparatus for the regeneration of active carbon, which comprises a heating furnace provided with at least one burner and at least one annular regeneration chamber composed of at least one set of an inner cylinder and an outer cylinder installed concentrically inside said heating furnace, said outer cylinder having a plurality of holes penetrating the side wall thereof, wherein the spent active carbon is supplied to the upper part of said annular regeneration chamber and the regenerated carbon is to be taken out at the lower part of the same. The heating of said annular regeneration chamber from the side of said inner cylinder is performed either by introducing the flue gas arising in said heating furnace into the inner cylinder or by providing at least one burner within said inner cylinder and utilizing the combustion gas from said burner. The spent active carbon can be regenerated by subjecting the same to the process comprising drying, calcination and reactivation by the use of the flue gas.
    • 本发明提供了一种用于再生活性炭的双缸型设备,其包括设置有至少一个燃烧器的加热炉和至少一个环形再生室,所述至少一个环形再生室由至少一组内筒和外筒安装 同心地位于所述加热炉内,所述外筒具有穿过其侧壁的多个孔,其中废活性炭被供应到所述环形再生室的上部,并且再生碳将在 一样。 所述环形再生室从所述内筒一侧的加热通过将在所述加热炉中产生的烟道气引入内圆筒中或通过在所述内圆筒内设置至少一个燃烧器并利用来自所述燃烧器的燃烧气体 。 废活性炭可以通过使其与含有干燥,煅烧和使用烟道气再活化的方法一起进行再生。