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    • 5. 发明申请
    • OPTICAL FIBER STRUCTURE FOR EFFICIENT USE OF PUMP POWER
    • 光纤结构有效利用泵浦功率
    • WO1996004700A1
    • 1996-02-15
    • PCT/US1995009311
    • 1995-07-24
    • POLAROID CORPORATION
    • POLAROID CORPORATIONMUENDEL, Martin, H.
    • H01S03/06
    • G02B6/03633G02B6/03605H01S3/06708H01S3/06729H01S3/094003H01S3/094007H01S3/094069
    • An optical fiber (130) structure for use in gain applications which comprises at least one core (134), selectively doped with an active gain species, and an inner cladding (132) surrounding the core, where the inner cladding serves the purpose of receiving multimode pump energy from an external power source, confining this energy, and transferring the energy into the core by means of repeated interactions between the energy and the active dopant within the core as the pump energy propagates along the length of the fiber structure. The cross-sectional shape of the inner cladding is in the form of a non-rectangular, convex polygon so that the propagating pump energy is induced to form an essentially uniform radiation field in which the various radiation modes comprising the pump energy are isotropically distributed.
    • 一种在增益应用中使用的光纤(130)结构,其包括选择性掺杂有有源增益物质的至少一个核心(134),以及围绕所述芯体的内包层(132),其中所述内包层用于接收 通过来自外部电源的多模泵浦能量,限制该能量,并且当泵能量沿着纤维结构的长度传播时,通过能量和核心内的活性掺杂剂之间的重复相互作用将能量传递到芯中。 内包层的横截面形状是非矩形凸多边形的形式,使得传播的泵浦能量被诱导以形成基本均匀的辐射场,其中包括泵浦能量的各种辐射模式是各向同性地分布的。
    • 8. 发明申请
    • BEND INSENSITIVE OPTICAL FIBERS WITH LOW REFRACTIVE INDEX GLASS RINGS
    • 弯曲具有低折射率玻璃环的隐性光纤
    • WO2010080952A1
    • 2010-07-15
    • PCT/US2010/020431
    • 2010-01-08
    • CORNING INCORPORATEDCHEN, XinLI, Ming-JunLIU, Anping
    • CHEN, XinLI, Ming-JunLIU, Anping
    • G02B6/036
    • G02B6/0365G02B6/03605G02B6/03633Y10T428/2962
    • An optical fiber includes a silica-based glass portion having an outer diameter of less than about 120 μm. The glass portion comprises a core, an inner cladding and a low index ring. The core comprises an index of refraction n 1 , and a relative refractive index percent A 1 % relative to pure silica glass. The inner cladding surrounds the core and comprises an index of refraction n 2 , a radial thickness of less than about 40 μm and a relative refractive index percent Δ 2 % relative to pure silica glass, wherein Δ 1 % > Δ 2 % and the difference between Δ 1 % and Δ 2 % is greater than 0.1%. The low index ring surrounds the inner cladding and comprises boron and fluorine, a radial thickness of less than about 20 μm, an index of refraction n 3 and a third relative refractive index percent Δ 3 % relative to pure silica glass, wherein Δ 2 % > Δ 3 % and Δ 3 % is less than -0.5%.
    • 光纤包括外径小于约120μm的二氧化硅基玻璃部分。 玻璃部分包括芯,内包层和低折射率环。 芯包括折射率n1,相对于纯石英玻璃的相对折射率百分比A1%。 内包层围绕芯部,包括折射率n2,小于约40μm的径向厚度和相对于纯二氧化硅玻璃的相对折射率百分比为±2%,其中α1%>≥2%,和 ≤1%和≤2%大于0.1%。 低折射率环围绕内包层并且包括硼和氟,径向厚度小于约20μm,折射率n3和相对于纯石英玻璃的第三相对折射率百分比Δ3%,其中λ2%> ≤3%和≤3%小于-0.5%。