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    • 38. 发明授权
    • Method for manufacturing optical waveguide
    • 光波导制造方法
    • US4643751A
    • 1987-02-17
    • US745043
    • 1985-06-17
    • Koichi Abe
    • Koichi Abe
    • G02B6/00C03B8/04C03B20/00C03B37/014C03B37/018
    • C03B37/01473C03B37/01446C03B2201/12Y10S65/16
    • Optical waveguide having a fused silica core and a fluorine doped silica cladding is made by heating a cylinder of silica in fluorine, the cylinder initially having an outer annular particulate or porous region which is dried by the fluorine and into which fluorine diffuses to lower the refractive index of the silica when fused. The cylinder is made by depositing particulate silica onto a mandrel, drying the silica in chlorine, and heating the silica to densify it. Further particulate silica is deposited and is then heated in a fluorine-containing gas to dry, fluorine diffuse, and sinter the porous outer part of the silica. The resulting tubular silica preform is heated to cause fusion of the porous silica and to collapse the tubular preform into a rod from which optical waveguide is drawn, the waveguide having a fluorine doped silica cladding. The fluorine drying and diffusion steps produce HF which is extremely corrosive. To avoid escape of HF, the fluorine drying, diffusion and consolidation steps are all performed within a single protective fused silica tube. After termination of the drying, diffusion and consolidation steps, the protective silica tube is collapsed so as to become an outer layer of the preform and is incorporated within fiber drawn from the preform.
    • 具有熔融二氧化硅芯和氟掺杂二氧化硅包层的光波导通过将氟化二氧化硅的圆筒加热而制成,该圆筒最初具有外部环形颗粒或多孔区域,该区域被氟干燥,氟扩散到其中以降低折射率 融合时二氧化硅的指数。 圆筒是通过将颗粒二氧化硅沉积到心轴上,将二氧化硅干燥在氯中并加热二氧化硅使其致密化而制成的。 沉积另外的颗粒二氧化硅,然后在含氟气体中加热至干,氟扩散,并烧结二氧化硅的多孔外部部分。 所得到的管状二氧化硅预制件被加热以引起多孔二氧化硅的熔化,并将管状预成型件折叠成拉制光波导的杆,该波导具有氟掺杂的二氧化硅包层。 氟干燥和扩散步骤产生极其腐蚀性的HF。 为了避免HF排出,氟干燥,扩散和固化步骤都在单个保护性熔融石英管内进行。 在干燥,扩散和固结步骤终止之后,保护性二氧化硅管被压扁以成为预成型件的外层,并且结合在从预制件中拉出的纤维中。
    • 39. 发明授权
    • Precise positioning of optical fibers
    • 光纤的精确定位
    • US4474469A
    • 1984-10-02
    • US369280
    • 1982-04-19
    • Koichi Abe
    • Koichi Abe
    • G02B6/255G02B6/38G02B7/00G02B5/14
    • G02B6/2555G02B6/0288G02B6/03611G02B6/03627G02B6/03633G02B6/03644G02B6/0365G02B6/2551
    • Before splicing optical fibers having cladding and core of differing refractive index, the cores are axially aligned. The fiber ends are held apart with the fibers approximately coaxial. The fiber end surfaces are then illuminated and reflected light is monitored. Since reflectivity is a function of refractive index, the position of the core in the reflectivity profile of each surface can be readily identified. The fiber ends can then be manouvered transverse of the fiber axes to bring the fiber core centers into registration with a datum line. The fiber ends are then brought close together for splicing. Previously, fibers having nominally identical outside diameters were aligned simply by pressing them into a common V groove, the optical transmission efficiency then depending on fiber/core concentricity. Alternatively, light was injected into the far end of one fiber, monitored at the far end of the other fiber, and the fibers at their near end manipulated to maximize monitored optical power. The present invention provides an easier and cheaper method of ensuring core alignment especially for monomode fibers.
    • 在具有包层和具有不同折射率的芯的光纤接合之前,芯是轴向对齐的。 纤维端部被保持分开,纤维大致同轴。 然后照亮光纤端面并监测反射光。 由于反射率是折射率的函数,因此可以容易地识别芯在每个表面的反射率分布中的位置。 然后可以将纤维端横向于纤维轴线,以使纤维芯中心与基准线对准。 然后将纤维末端靠近在一起进行拼接。 以前,具有标称相同的外径的纤维简单地通过将它们压入共同的V形槽来对准,然后光传输效率取决于纤维/芯的同心度。 或者,将光注入到一根光纤的远端,在另一根光纤的远端进行监测,并在其近端操作光纤,以最大限度地监测光功率。 本发明提供了一种更容易和更便宜的确保核心对准的方法,特别是对于单模光纤。
    • 40. 发明授权
    • Peripheral apparatus, information processing apparatus, communication control method, and storage medium
    • 外围设备,信息处理设备,通信控制方法和存储介质
    • US09450922B2
    • 2016-09-20
    • US13571759
    • 2012-08-10
    • Koichi Abe
    • Koichi Abe
    • H04L29/06
    • H04L63/0428H04L63/168
    • A peripheral apparatus is communicably connected to a management apparatus. The management apparatus manages information of jobs in services provided from a providing apparatus via a network to execute processing of the jobs. The peripheral apparatus includes a communication unit. The communication unit transmits, in a series of processes in the services, checking information used to determine whether there is any job in the management apparatus to the management apparatus by a communication method that does not execute encryption. The communication unit transmits, in the series of processes in the services, other information different from the checking information to the management apparatus by a communication method that executes encryption.
    • 外围设备可通信地连接到管理设备。 管理装置经由网络管理从提供装置提供的服务中的作业的信息,以执行作业的处理。 外围设备包括通信单元。 通信单元在服务中的一系列处理中,通过不执行加密的通信方法来发送用于确定管理装置中是否存在管理装置的任务的检查信息。 通信单元通过执行加密的通信方法将服务中的一系列处理中的与检查信息不同的其他信息发送到管理装置。