Method of manufacturing hollow core optical fibers
    31.
    发明公开
    Method of manufacturing hollow core optical fibers 失效
    维尔法赫尔·赫斯特伦

    公开(公告)号:EP0249886A1

    公开(公告)日:1987-12-23

    申请号:EP87108427.3

    申请日:1987-06-11

    Abstract: A method for manufacturing hollow core optical fibers is disclosed comprising continuously feeding a glass rod of the desired cladding composition into a high temperature furnace with the rod in line contact with the inner surface of the glass tube. The glass transition temperature of the rod is substantially lower than the glass transition temperature of the glass tube. The glass rod composition is uniformly distributed on the glass tube inner wall as it enters the furnace hot zone. The ratio of the rod diameter to the glass tube inner diameter and the drawing temperature determine the coating thickness of the glass cladding on the inner surface of the glass tube. As the coated tube is passed through the furnace hot zone peak, the optical fiber is drawn. The rod and tube feed rate, the drawing temperature of the rod and glass tube and the drawing rate of the coated glass tube are selected to yield a hollow core optical fiber, with preselected interior and exterior diameters.

    Abstract translation: 公开了一种制造中空芯光纤的方法,其包括将所需包层组合物的玻璃棒连续地供入高温炉中,所述棒与玻璃管的内表面线接触。 棒的玻璃化转变温度基本上低于玻璃管的玻璃化转变温度。 玻璃棒组合物在玻璃管内壁进入炉热区时均匀分布。 杆直径与玻璃管内径的比率和拉伸温度决定了玻璃管内表面上的玻璃包层的涂层厚度。 当涂层管通过炉热区峰值时,拉伸光纤。 选择杆和管进给速率,棒和玻璃管的拉伸温度以及涂覆的玻璃管的拉伸速率以产生具有预选的内部和外部直径的中空纤芯光纤。

    光ファイバ製造方法
    35.
    发明申请
    光ファイバ製造方法 审中-公开
    制造光纤的方法

    公开(公告)号:WO2007132744A1

    公开(公告)日:2007-11-22

    申请号:PCT/JP2007/059694

    申请日:2007-05-10

    Abstract:  押し出し成型法以外の方法によってエアクラッド型光ファイバを製造する方法の提供。  中空ガラスファイバの中央にその軸方向に延びる光伝送ガラスが保持されている光ファイバの製造方法であって、中心軸の周りにその軸方向に延びる3個以上の直径が互いに等しい孔が、各孔の軸と前記中心軸との距離が等しくなるように、また各孔の軸間の距離が等しくなるように、かつこれら孔によって囲まれている部分が前記光伝送ガラスとなるべき部分となるように形成されているガラスロッドを、その一端を封じて前記孔を膨張させるように加圧しながら加熱して引き伸ばす工程を経て、前記各孔の間のガラスが板状であるプリフォームとし、このプリフォームを線引きして、前記光伝送ガラスが板状ガラスによって保持されている光ファイバとする光ファイバ製造方法。

    Abstract translation: 本发明提供一种除了挤出成型以外的方法制造空气包层型光纤的方法。 在该方法中,包括在中空玻璃纤维的中心轴向延伸的中空玻璃纤维和光学透射玻璃的光纤。 提供一种玻璃棒,其中设置有围绕中心轴线设置并沿轴向延伸的具有相同直径的三个或更多个孔,使得每个孔的轴线与中心轴线之间的距离相同,轴线之间的距离 的孔是相同的,并且由这些孔包围的部分是光学透射玻璃部分。 玻璃棒的一端被密封,并且在向孔施加压力的同时,加热杆来膨胀孔并被拉伸以制备预成型件,其中孔之间的玻璃是板形式。 将预成型件拉丝以制备包括由玻璃板保持的光学透射玻璃的光纤。

    AMPLIFYING OPTICAL FIBER OPERATING AT A WAVELENGTH IN THE RANGE OF 1000-1700 NM, METHODS OF FABRICATING THE SAME, AND FIBER LASER
    36.
    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 审中-公开
    在1000-1700 NM的范围内放大光纤操作波长,其制造方法和光纤激光

    公开(公告)号:WO2007035131A2

    公开(公告)日:2007-03-29

    申请号:PCT/RU2006000475

    申请日:2006-09-08

    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,一起或分别为0.1-20摩尔%,氧化磷浓度为0至10摩尔%,并且提供最大光学增益至少10倍 大于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。

    HOLEY OPTICAL FIBRES OF NON-SILICA BASED GLASS
    38.
    发明申请
    HOLEY OPTICAL FIBRES OF NON-SILICA BASED GLASS 审中-公开
    非硅基玻璃的孔光学纤维

    公开(公告)号:WO02014946A1

    公开(公告)日:2002-02-21

    申请号:PCT/GB2001/003610

    申请日:2001-08-13

    Abstract: To overcome problems of fabricating conventional core-clad optical fibre from non-silica based (compound) glass, it is proposed to fabricate non-silica based (compound) glass optical fibre as holey fibre i.e. one contining Longitudinal holes in the cladding. This removes the conventional problems associated with mismatch of the physical properties of the core and clad compound glasses, since a holey fibre can be made of a single glass composition. With a holey fibre, it is not necessary to have different glasses for the core and cladding, since the necessary refractive index modulation between core and cladding is provided by the microstructure of the clad, i.e. its holes, rather than by a difference in materials properties between the clad and core glasses. Specifically, the conventional thermal mismatch problems between core and clad are circumvented. A variety of fibre types can be fabricated from non-silica based (compounds) glasses, for example: single-mode fibre; photonic band gap fibre; highly non-linear fibre; fibre with photosensitivity written gratings and other refractive index profile structures; and rare-earth doped fibres (e.g. Er, Nd, Pr) to provide gain media for fibre amplifiers and lasers.

    Abstract translation: 为了克服从非二氧化硅(复合)玻璃制造常规的包芯光纤的问题,提出了制造非二氧化硅基(复合)玻璃光纤作为多孔纤维,即在包层中连续的纵向孔。 这消除了与芯和包覆复合玻璃的物理性质失配相关的常规问题,因为多孔纤维可以由单一玻璃组合物制成。 使用多孔光纤,由于芯和包层之间必需的折射率调制由包层的微结构即其孔提供,而不是通过材料性质的差异来提供用于芯和包层的不同的玻璃。 在包层和核心眼镜之间。 具体来说,芯和包层之间常规的热失配问题被规避。 各种纤维类型可以由非二氧化硅(化合物)玻璃制成,例如:单模纤维; 光子带隙光纤; 高度非线性的纤维; 具有光敏写入光栅的纤维和其他折射率分布结构; 和稀土掺杂光纤(例如Er,Nd,Pr),为光纤放大器和激光器提供增益介质。

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