Optical fiber for optical amplifier
    4.
    发明公开
    Optical fiber for optical amplifier 失效
    Optische FaserfüroptischenVerstärker。

    公开(公告)号:EP0535798A2

    公开(公告)日:1993-04-07

    申请号:EP92307736.6

    申请日:1992-08-25

    IPC分类号: C03C13/04 H01S3/06

    摘要: Fluoride glass-based optical fiber for an optical amplifier which contains rare earth metal ions in the core glass has a relative refractive index difference Δn between the core and the cladding of 1.4% or more. The core glass contains PbF 2 in a proportion of 25 mol% or less based on the total composition of the core glass. The fluoride glass is doped with rare earth metal ions, and part of the fluorine in the glass may be substituted by at least one halogen. Pr 3+ , Pr 3+ -Yb 3+ , Pr 3+ -Nd 3+ , or Pr 3+ -Er 3+ can be doped as the rare earth metal ions. Chlorine, bromine or iodine may be used as the halogen.

    摘要翻译: 用于在芯玻璃中含有稀土类金属离子的光放大器的氟化物玻璃基光纤,芯与包层之间的相对折射率差Wn为1.4%以上。 芯玻璃含有基于芯玻璃的总组成的25摩尔%以下的PbF 6。 氟化物玻璃掺杂有稀土金属离子,玻璃中的氟的一部分可以被至少一个卤素取代。 Pr&3&copy&,Pr 3&copy&-Yb&3&copy&,Pr 3&copy&-Nd&lt; 3&copy&,或者Pr 3&复制&Er <3>&copy&可以掺杂为稀土金属 离子。 可以使用氯,溴或碘作为卤素。

    Lasers, optical amplifiers, and amplification methods
    6.
    发明公开
    Lasers, optical amplifiers, and amplification methods 失效
    激光,optischeVerstärkerundVerstärkungsverfahren

    公开(公告)号:EP0874427A1

    公开(公告)日:1998-10-28

    申请号:EP97108954.5

    申请日:1997-06-03

    摘要: An optical amplification medium (4) doped with Er 3+ ions is selected from the group of a fluoride glass, a chalcogenide glass, a telluride glass, a halide crystal, and a lead oxide based glass. The Er 3+ ions are excited by light of at least one wavelength in the range of 0.96 µm to 0.98 µm. A laser or an optical amplifier includes this optical amplification medium (4) doped with Er 3+ ions. Furthermore, an optical amplification method performs an optical amplification using the optical amplifier having the optical amplification medium doped with Er 3+ ions. Thus, the laser to be applied in the field of optical communication, the optical amplifier having the characteristics of low noise and high gain, and the optical amplification method can be provided.

    摘要翻译: 掺杂有Er 3+离子的光学放大介质(4)选自氟化物玻璃,硫族化物玻璃,碲化物玻璃,卤化物晶体和氧化铅基玻璃。 Er <3+>的离子被至少一个波长的光激发在0.96μm至0.98μm的范围内。 激光器或光放大器包括掺杂有Er 3+离子的该光学放大介质(4)。 此外,光放大方法使用具有掺杂有Er 3+离子的光学放大介质的光放大器进行光放大。 因此,可以提供在光通信领域应用的激光器,具有低噪声和高增益特性的光放大器以及光放大方法。

    Process for the preparation of fluoride glass and process for the preparation of optical fiber preform using the fluoride glass
    7.
    发明公开
    Process for the preparation of fluoride glass and process for the preparation of optical fiber preform using the fluoride glass 失效
    一种制备用于制造具有这种玻璃的光纤母材的氟化物玻璃和方法的过程。

    公开(公告)号:EP0331483A2

    公开(公告)日:1989-09-06

    申请号:EP89302073.5

    申请日:1989-03-02

    摘要: Provided is a process for preparing a homogenous fluoride glass containing high purity BaF₂ through the CVD process characterized in that the used gaseous mixture comprising: a barium β-diketonate complex serving as a first starting material and represented by the following general formula (1) of:
    wherein R is an alkyl group having 1 to 7 carbon atoms, R′ is a substituted alkyl group having fluorine atoms substituting hydrogen atoms and represented by C n F 2n+1 where n is an integer of from 1 to 3; and
    a gaseous or vaporizable compound of the matallic element constituting said fluoride glass, the gaseous or vaporizable compound serving as a second starting material; and a fluorine-containing gas serving as fluorinating agent. Further provided is a process for preparing a preform for a fluoride optical fiber which is low in trasmission loss, by depositing the fluoride glass over the interior wall of a cylindrical tube or the wall of rod-like glass substrate through the CVD process followed by collapsing.

    摘要翻译: 提供了用于制备均匀的氟化物玻璃通过在DASS特点CVD工艺含有高纯度氟化钡的方法使用的模具的气体混合物,其包括:由下述通式用作第一原料钡的β-二酮络合物和(1)表示的 : worin R是具有1至7个碳原子的烷基,R min是具有substituiertem烷基氟原子取代氢原子,由C n频率f 2n + 1,其中n是从1到3的整数代表的; 和元件构成matallic的气态或可气化的化合物所述的氟化物玻璃,气态或可汽化的化合物作为第二原料; 和含氟气体作为氟化剂。 进一步提供的是一种用于制备预成型件对于氟化物光纤所有这一切是在trasmission损失低,通过在圆筒形管的内壁或随后通过折叠棒状玻璃基板通过CVD工艺壁沉积的氟化物玻璃 ,

    Fluoride glass fiber
    10.
    发明公开
    Fluoride glass fiber 失效
    Fluoridglasfaser

    公开(公告)号:EP0787694A1

    公开(公告)日:1997-08-06

    申请号:EP97300511.9

    申请日:1997-01-28

    IPC分类号: C03C3/32 C03C13/04

    CPC分类号: C03C13/042 C03C3/325

    摘要: This invention relates to fluoride glass with a specific composition having wide infrared transmission. A fluoride optical fiber using this fluoride glass can give high efficiency with a low loss. The fluoride optical fiber having a second cladding on the outer periphery of a first cladding can adjust the refractive index of the first cladding suitably.

    摘要翻译: 本发明涉及具有较宽的红外线透射率的具体组成的氟化物玻璃。 使用这种氟化物玻璃的氟化物光纤可以以低损耗提供高效率。 在第一包层的外周具有第二包层的氟化物光纤可以适当地调节第一包层的折射率。