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    Borosilicate cladding glasses for germanate core thulium-doped amplifiers
    14.
    发明授权
    Borosilicate cladding glasses for germanate core thulium-doped amplifiers 失效
    用于锗酸盐铯掺杂放大器的硼硅酸盐包覆玻璃

    公开(公告)号：US06515795B1

    公开(公告)日：2003-02-04

    申请号：US09897833

    申请日：2001-06-29

    Applicant: Matthew J. Dejneka ,  Ji Wang

    Inventor： Matthew J. Dejneka ,  Ji Wang

    IPC: H01S3067

    CPC classification number: C03B37/01211 ,  C03B37/01274 ,  C03B2201/10 ,  C03B2201/30 ,  C03B2201/50 ,  C03B2201/54 ,  C03B2201/58 ,  C03B2201/78 ,  C03C13/046 ,  G02B6/03694 ,  H01S3/06716 ,  H01S3/06754 ,  H01S3/1616 ,  H01S3/163 ,  H01S3/1655

    Abstract: A borosilicate glass composition comprises SiO2 having a concentration of about 40 mole percent to about 60 mole percent, B2O3 having a concentration of about 10 mole percent to about 30 mole percent, and an alkaline earth and/or alkali compound having a concentration of 10 mole percent to about 40 mole percent. An optical fiber amplification device comprises a borosilicate glass material cladding. The core comprises a germanate glass material doped with Tm3+. The germanate glass material has a first surface configured to receive an optical signal having a wavelength of from about 1400 nm to about 1540 nm and a second surface configured to output an amplified optical signal. In this manner, low cost fiber amplifiers in the 1450-1530 nm wavelength region (corresponding to the S-band) can be achieved.

    Abstract translation: 硼硅酸盐玻璃组合物包含浓度为约40摩尔％至约60摩尔％的SiO 2，浓度为约10摩尔％至约30摩尔％的B 2 O 3和浓度为10摩尔的碱土金属和/或碱化合物 百分比至约40摩尔％。 光纤放大装置包括硼硅酸盐玻璃材料包层。 核心包括掺杂有Tm3 +的锗酸盐玻璃材料。 锗酸盐玻璃材料具有被配置为接收波长为约1400nm至约1540nm的光信号的第一表面和被配置为输出放大的光信号的第二表面。 以这种方式，可以实现1450-1530nm波长区域（对应于S波段）的低成本光纤放大器。

    Solution doping method of making an optical amplifying fiber
    15.
    发明授权
    Solution doping method of making an optical amplifying fiber 失效
    制造光放大光纤的溶液掺杂方法

    公开(公告)号：US06408652B1

    公开(公告)日：2002-06-25

    申请号：US09299666

    申请日：1999-04-27

    Applicant: Koji Okamura ,  Keiko Takeda

    Inventor： Koji Okamura ,  Keiko Takeda

    IPC: C03B37027

    CPC classification number: G02B6/02042 ,  C03B37/01211 ,  C03B37/01807 ,  C03B37/01838 ,  C03B37/01861 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2201/42 ,  C03B2203/29 ,  C03C13/045 ,  H01S3/06708 ,  H01S3/06729

    Abstract: An optical amplifying fiber including a clad, a first core provided inside the clad and containing Ge, a second core provided inside the first core and containing Er and Al, and a third core provided inside the second core and containing Ge. The second core has a refractive index higher than that of the clad, and the first and third cores have refractive indexes each of which is higher than that of the second core. Since the third core having the high refractive index is provided at a central portion, it is possible to make smaller a mode field diameter and hence to improve a conversion efficiency of pumping light into signal light. Further, since the second core contains Al as an amplification band width increasing element, it is possible to sufficiently ensure a wide amplification band width.

    Abstract translation: 一种光学放大光纤，包括：包层，设置在所述包层内并包含Ge的第一芯，设置在所述第一芯内并包含Er和Al的第二芯和设置在所述第二芯内并且包含Ge的第三芯。 第二芯的折射率高于包层的折射率，第一和第三芯具有高于第二芯的折射率。 由于具有高折射率的第三纤芯设置在中心部分，所以可以使模场直径变小，从而提高泵浦光转换为信号光的转换效率。 此外，由于第二芯包含Al作为放大带宽增加元件，因此可以充分确保宽的放大带宽。

    Method for making glasses containing rare earth fluorides by precipitating solution doped compounds
    16.
    发明授权
    Method for making glasses containing rare earth fluorides by precipitating solution doped compounds 失效
    通过沉淀溶液掺杂化合物制备含稀土氟化物的玻璃的方法

    公开(公告)号：US06401494B2

    公开(公告)日：2002-06-11

    申请号：US09915781

    申请日：2001-07-26

    Applicant: Huailiang Wei

    Inventor： Huailiang Wei

    IPC: C03C1702

    CPC classification number: C03C3/06 ,  C03B37/01433 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2201/50 ,  C03B2201/54 ,  C03C23/0095 ,  C03C2201/12 ,  C03C2201/31 ,  C03C2201/34 ,  C03C2203/50

    Abstract: A method that provides a new way to embed rare earth fluorides into silicate (or germania-doped silica) glasses by means of solution chemistry. Embedding rare earth fluorides into a silicate (or germania-doped silica) glass comprises the following steps. First, form a porous silicate core preform. Second, submerge the preform into an aqueous solution of rare earth ions. Third, remove the preform from the solution and wash the outside surfaces of the preform. Fourth, submerge the preform into an aqueous solution of a fluorinating agent to precipitate rare earth trifluorides from the solution and deposit in the pores or on the wall of the preform. This is followed by drying.

    Abstract translation: 一种通过溶液化学提供将稀土氟化物嵌入硅酸盐（或氧化锗掺杂二氧化硅）玻璃的新方法的方法。 将稀土氟化物嵌入硅酸盐（或掺锗二氧化硅）玻璃中包括以下步骤。 首先，形成多孔硅酸盐芯预制件。 第二，将预成型件浸入稀土离子的水溶液中。 第三，从溶液中取出预型件并洗涤预成型件的外表面。 第四，将预制件浸入氟化剂的水溶液中以从溶液中沉淀出稀土三氟化物，并沉积在预制件的孔或壁上。 然后干燥。

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