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    GLASS PREFORM MANUFACTURING METHOD
    273.
    发明申请
    GLASS PREFORM MANUFACTURING METHOD 有权
    玻璃预制件制造方法

    公开(公告)号：US20100300151A1

    公开(公告)日：2010-12-02

    申请号：US12856261

    申请日：2010-08-13

    Applicant: Kenichi TAKAHASHI ,  Youko Yamanashi

    Inventor： Kenichi TAKAHASHI ,  Youko Yamanashi

    IPC: C03B19/08

    CPC classification number: C03B37/01433 ,  C03B2201/28 ,  C03B2201/32 ,  C03B2201/34 ,  C03B2201/36

    Abstract: A glass preform manufacturing method includes: generating glass fine particles by hydrolyzing a source gas in an oxyhydrogen flame; depositing the generated glass fine particles to form a torous glass preform; immersing the porous glass preform in an additive solution including an additive solvent in which a compound containing a desired additive is dissolved to impregnate the additive solution into the porous glass preform; first replacing of replacing the additive solvent remaining in the porous glass preform with the replacement solvent by immersing the porous glass preform in which the additive solution remains in a replacement solvent in which a solubility of the additive is lower than that in the additive solvent and having miscibility with the additive solvent; drying the porous glass preform after the first replacing; and sintering the dried porous glass preform to transparently vitrify the dried porous glass preform.

    Abstract translation: 玻璃预制件的制造方法包括：通过在氢氧焰中水解源气体来产生玻璃微粒; 沉积生成的玻璃细颗粒以形成托盘玻璃预制件; 将多孔玻璃预成型体浸渍在包含其中溶解含有所需添加剂的化合物的添加剂溶剂的添加剂溶液中以将添加剂溶液浸渍到多孔玻璃预制件中; 首先用置换溶剂代替残留在多孔玻璃预制品中的添加剂溶剂，通过浸渍多孔玻璃预制件，其中添加剂溶液保留在添加剂溶解度低于添加剂溶剂中的溶剂中并具有 与添加剂溶剂的混溶性; 第一次更换之后干燥多孔玻璃预制件; 并且将干燥的多孔玻璃预制件烧结以使干燥的多孔玻璃预制件透明地玻璃化。

    RARE-EARTH-DOPED OPTICAL FIBER, OPTICAL FIBER AMPLIFIER, AND METHOD OF MANUFACTURING A PREFORM FOR SUCH FIBER
    274.
    发明申请
    RARE-EARTH-DOPED OPTICAL FIBER, OPTICAL FIBER AMPLIFIER, AND METHOD OF MANUFACTURING A PREFORM FOR SUCH FIBER 审中-公开
    稀土光纤，光纤放大器和制造这种光纤的预制件的方法

    公开(公告)号：US20090180174A1

    公开(公告)日：2009-07-16

    申请号：US12352067

    申请日：2009-01-12

    Applicant: Tetsuya Haruna ,  Manabu Ishikawa

    Inventor： Tetsuya Haruna ,  Manabu Ishikawa

    IPC: H01S3/091 ,  C03B37/01 ,  G02B6/02 ,  H01S3/14

    CPC classification number: C03C3/06 ,  C03B37/01807 ,  C03B37/01853 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/28 ,  C03B2201/36 ,  C03C4/12 ,  C03C13/045 ,  C03C2201/11 ,  C03C2201/28 ,  C03C2201/36 ,  C03C2203/44 ,  H01S3/06716 ,  H01S3/176

    Abstract: A first step, in which P2O5-containing glass is deposited inside a silica glass pipe, and a second step, in which a Cl2-containing gas is introduced into the pipe and the P2O5-containing glass is dehydrated by heating the pipe, are repeated alternately. A third step, in which glass that does not contain P2O5 is deposited on the inside of the silica glass pipe, may further be provided such that the first step, the second step, and the third step are repeatedly performed in this order. A rare-earth-doped optical fiber, which has a attenuation of 15 dB/km or less at a wavelength of 1200 nm, comprises a core region and a cladding region enclosing the core region, wherein the core region includes phosphorus of 3 wt % or more, aluminum of 0.3 wt % or more, a rare-earth element of 500 wtppm or more, and chlorine of 0.03 wt % or more, and the cladding region has a refractive index that is lower than the refractive index of the core region.

    Abstract translation: 第一步，其中含有P2O5的玻璃沉积在石英玻璃管内，第二步是将含有Cl 2的气体引入到管中并且含P2O5的玻璃通过加热管而被脱水 交替。 可以进一步设置第三步骤，其中不含P2O5的玻璃沉积在石英玻璃管的内部，可以进一步设置使得第一步骤，第二步骤和第三步骤以该顺序重复进行。 在1200nm的波长下具有15dB / km以下的衰减的稀土掺杂光纤包括芯区域和包围芯区域的包层区域，其中芯区域包含3重量％的磷， 以上，0.3重量％以上的铝，500重量ppm以上的稀土元素和0.03重量％以上的氯，并且包层区域的折射率低于芯部区域的折射率 。

    Amplifying Optical Fiber Operating At A Wavelength In The Range Of 1000-1700 nm, Methods of Fabricating The Same, And Fiber Laser
    276.
    发明申请
    Amplifying Optical Fiber Operating At A Wavelength In The Range Of 1000-1700 nm, Methods of Fabricating The Same, And Fiber Laser 有权
    在1000-1700nm波长范围内放大光纤工作，其制造方法和光纤激光器

    公开(公告)号：US20090116809A1

    公开(公告)日：2009-05-07

    申请号：US12067698

    申请日：2006-09-08

    Applicant: Evgeny Mikhailovich Dianov ,  Vladislav Vladimirovich Dvoirin ,  Valery Mikhailovich Mashinsky ,  Alexei Nikolaevich Guryanov ,  Andrei Alexandrovich Umnikov

    Inventor： Evgeny Mikhailovich Dianov ,  Vladislav Vladimirovich Dvoirin ,  Valery Mikhailovich Mashinsky ,  Alexei Nikolaevich Guryanov ,  Andrei Alexandrovich Umnikov

    IPC: G02B6/02 ,  H01S3/30

    CPC classification number: C03B37/01413 ,  C03B37/01433 ,  C03B37/01807 ,  C03B37/01838 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/78 ,  C03B2207/90 ,  C03C4/0071 ,  C03C4/10 ,  C03C4/12 ,  C03C13/046 ,  C03C13/048 ,  C03C25/105 ,  H01S3/06716

    Abstract: The invention relates to lasers and fiber optics. An amplifying optical fiber operating at a wavelength in the range of 1000-1700 nm comprises an oxide glass core to provide amplification and at least one oxide glass cladding. According to the invention the core contains oxides of elements selected from the group consisting of silicon, germanium, phosphorus, bismuth, aluminum, gallium at concentration of bismuth oxide of 10-4-5 mol %, concentration of silicon and germanium oxides, taken together or separately, of 70-99.8999 mol %, concentration of aluminum and gallium oxides, taken together or separately, of 0.1-20 mol % concentration of phosphorus oxide from 0 to 10 mol %, and provides a maximum optical gain at least 10 times greater than the nonresonant loss factor in the optical fiber. An outside oxide glass cladding comprises fused silica. The optical fiber core has an absorption band in the 1000 nm region, pumping to which region provides an increased efficiency of power conversion of pump light into luminescence light in the 1000-1700 nm range as compared to pumping to another absorption bands in which pumping brings about luminescence in the 1000-1700 nm range. The optical fiber emits luminescence in the range of 1000-1700 nm when excited by light with wavelengths in the range of 750-12000 nm and a half-height width of the luminescence band of more than 120 nm, and luminescence band boundaries defined as points in which the luminescence intensity drops twice relative to the intensity in the luminescence band maximum lie within the 1000-1700 nm spectral range.

    Abstract translation: 本发明涉及激光器和光纤。 在1000-1700nm波长范围内工作的放大光纤包括一个氧化物玻璃芯，以提供放大和至少一个氧化物玻璃包层。 根据本发明，芯包含选自硅，锗，磷，铋，铝，镓的氧化物，氧化铋的浓度为10-4-5mol％，硅和锗的浓度，一起 或分别为70-99.8999摩尔％的铝和镓氧化物的浓度，一起或分开，0.1-20摩尔％的氧化磷浓度为0至10摩尔％，并且提供至少10倍的最大光学增益 比光纤中的非谐振损耗因子。 外部氧化物玻璃包层包括熔融石英。 光纤芯在1000nm区域中具有吸收带，与泵送到另一吸收带相比，在泵送到该区域时泵送到该区域的泵浦光的功率转换效率提高到1000-1700nm范围内的发光中 关于1000-1700nm范围内的发光。 光发射在1000-1700nm范围内，当波长为750-12000nm，发光带的半高宽度大于120nm时，光线发射，发光带边界定义为点 其中发光强度相对于发光带最大值的强度下降两倍在1000-1700nm光谱范围内。

    Optical fiber
    279.
    发明授权
    Optical fiber 失效
    光纤

    公开(公告)号：US07386210B2

    公开(公告)日：2008-06-10

    申请号：US11538334

    申请日：2006-10-03

    Applicant: Julia A. Farroni ,  Adrian Carter ,  Kanishka Tankala

    Inventor： Julia A. Farroni ,  Adrian Carter ,  Kanishka Tankala

    IPC: G02B6/00

    CPC classification number: G02B6/02114 ,  C03B37/01217 ,  C03B37/01231 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/42 ,  C03B2203/23 ,  C03B2203/31 ,  G02B6/024

    Abstract: An optical fiber comprises a photosensitive core that includes a concentration of a first material that increases the refractive index of the core and a concentration of a second material that is other than boron and that reduces the refractive index of the core. A cladding is disposed about the core for tending to confine light to the core. The fiber also includes at least one longitudinally extending region having a thermal coefficient of expansion that is different from the thermal coefficient of expansion of the cladding. In another embodiment, the core includes a concentration of germanium and a concentration of boron. Also disclosed is a polarization-maintaining double-clad (PM DC) fiber comprising one or both of at least one circular axially extending stress inducing region(s) and an inner cladding comprising a circular outer perimeter. Fibers according to the invention can include a rare earth dopant for emitting light of a selected wavelength responsive to being pumped by pump light of a pump wavelength that is different than the selected wavelength.

    Abstract translation: 光纤包括感光芯，其包括提高芯的折射率的第一材料的浓度和不同于硼的第二材料的浓度，并降低芯的折射率。 围绕芯部布置包层以倾向于将光限制在芯部上。 纤维还包括具有不同于包层的热膨胀系数的热膨胀系数的至少一个纵向延伸区域。 在另一个实施方案中，芯包括锗的浓度和硼的浓度。 还公开了一种包括至少一个圆形轴向延伸的应力诱导区域和包含圆形外周边的内包层中的一个或两个的偏振保持双包层（PMDC）光纤。 根据本发明的纤维可以包括用于发射选定波长的光的稀土掺杂剂，其响应于通过不同于所选波长的泵浦波长的泵浦光泵浦。

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