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    • 7. 发明公开
    • STRUCTURE FOR ELIMINATING ESCAPING LIGHT, AND FIBER LASER
    • STRUKTUR ZUR ELIMINIERUNG VON AUSTRETENDEM LICHT UND FASERLASER
    • EP3104202A1
    • 2016-12-14
    • EP15743598.3
    • 2015-02-02
    • Fujikura Ltd.
    • TANAKA Hironori
    • G02B6/255G02B6/02G02B6/44H01S3/067
    • H01S3/094007G02B6/14G02B6/245G02B6/255G02B6/2558G02B6/264G02B6/4296H01S3/0405H01S3/06704H01S3/06708H01S3/06729H01S3/094053H01S3/09408H01S3/0941
    • A leakage light removal structure 70 is used to remove leakage light in an optical fiber 140 having a core 160, a cladding 162 having a refractive index lower than the core 160, and a covering material 164 having a refractive index higher than the cladding 162. The leakage light removal structure 70 has a fiber housing 72 that houses part of the optical fiber140, a covering material extension portion 175 covering part of a whole circumference of the cladding 162 by extending part of the covering material 164 along a longitudinal direction of the optical fiber 140 within the fiber housing 72, and a cladding exposure portion 174 in which a portion of the whole circumference of the cladding 162 other than the covering material extension portion 175 is exposed within the fiber housing 72. The covering material 164 may be covered with a resin 76 having a refractive index not more than the refractive index of the covering material 164. For example, the covering material extension portion 175 is formed with a range of angles equal to or less than 180° about an axis of the optical fiber 140 in a cross-section perpendicular to the axis.
    • 泄漏光去除结构70用于去除具有芯160,折射率低于芯160的折射率的包层162的光纤140和折射率高于包层162的覆盖材料164的泄漏光。 泄漏光去除结构70具有容纳光纤140的一部分的光纤壳体72,覆盖材料延伸部175,覆盖材料延伸部175覆盖包层162的整个周边的一部分,通过沿着光学器件的长度方向延伸覆盖材料164的一部分 纤维壳体72内的纤维140以及覆盖材料延伸部分175以外的包覆层162的整个圆周的一部分暴露在纤维壳体72内的包层曝光部分174.覆盖材料164可以覆盖 具有折射率不大于覆盖材料164的折射率的树脂76.例如,覆盖材料延伸部分175 在垂直于该轴线的横截面中围绕光纤140的轴线形成等于或小于180度的角度范围。
    • 10. 发明公开
    • Thermal bonding of optical fibres
    • Thermische Verbindung von optischen Fasern
    • EP2960694A1
    • 2015-12-30
    • EP14189112.7
    • 2014-10-15
    • Fundacia Polskie Centrum Fotoniki Swiatlowodow
    • Jaroszewicz, LeszekMar , PaweNasi owski, TomaszPrzybysz, Natalia
    • G02B6/255
    • G02B6/2551G02B6/2558
    • A method of thermal bonding of optical fibres, made of different materials, consisting of laying, equalizing, axial positioning of optical fibres with regard to one another and protection, including, at least, three steps in which:
      a. optical fibres are laid, mutually equalized and axially positioned (distance d) with regard to one another,
      b. the end of the optical fibre with higher melting temperature (2,1) is heated up to temperature, exceeding the melting temperature of the other optical fibre (3,4).
      c. the heated end of the optical fibre with higher melting temperature is moved over towards the end of the optical fibre with lower melting temperature,
      d. both fibre ends are pressed into each other to obtain their thermal bonding,
      e. the spliced bond is then protected against mechanical damage.
    • 一种由不同材料制成的光纤的热粘合方法,包括相对于彼此进行光纤的铺设,均衡,轴向定位和保护,包括至少三个步骤,其中:a。 b)相互平行放置,相互平衡,轴向定位(距离d)。 具有较高熔融温度(2,1)的光纤的端部被加热到超过另一光纤(3,4)的熔化温度的温度。 C。 具有较高熔融温度的光纤的加热端向具有较低熔融温度的光纤端部移动,d。 两个纤维端被压入彼此以获得它们的热粘合,例如, 接合接头就可以防止机械损坏。