摘要:
An optical fiber including: (i) a silica based, rare earth doped core having a first index of refraction n1; (ii) a silica based inner cladding surrounding the core and having a second index of refraction n2, such that n1>n2, said inner cladding having a plurality of air holes extending longitudinally through the length of said optical fiber; (iii) a silica based outer cladding surrounding said inner cladding and having a third index of refraction n3, such that n2>n3, wherein said optical fiber supports a single polarization mode within the operating wavelength range.
摘要翻译:一种光纤,包括:(i)具有第一折射率n 1的二氧化硅基稀土掺杂的芯; (ii)围绕所述芯并且具有第二折射率n 2 2的基于二氧化硅的内包层,使得n 1,N 2, 所述内包层具有沿所述光纤的长度纵向延伸的多个气孔; (iii)围绕所述内包层并具有第三折射率n 3 3的基于二氧化硅的外包层,使得n 2 N 3 N 3 其中所述光纤在工作波长范围内支持单一偏振模式。
摘要:
According to the present invention the optical fiber includes a core with a first refractive index (n1) and the innermost core region with the refractive index n0, a cladding surrounding the core, the cladding having a third refractive index (n3), wherein n1>n3 and n0 n2. It is preferable that at least one of the core, innermost core region and/or moat has a non-circular shape.
摘要翻译:根据本发明,光纤包括具有第一折射率(n <1> 1)的核心和折射率为n <0的最内芯区域,围绕 芯,所述包层具有第三折射率(n 3/3),其中n 1 n 3 n 3和n 0 sub > SUB>。 根据一些实施例,光纤还可以包括环绕并邻接芯并且位于芯和包层之间的护城河,护城河具有第二折射率(n2> 2),其中n < SUB> 3 SUB> n <2> SUB>。 优选核心,最内芯区域和/或护城河中的至少一个具有非圆形形状。
摘要:
An optical fiber comprising: (i) a silica based, rare earth doped core having a first index of refraction n1; (ii) a silica based inner cladding surrounding the core having a second index of refraction n2, such that n1>n2; (iii) a silica based outer cladding surrounding the inner cladding having a third index of refraction n3 such that n2>n3, wherein inner cladding diameter is at least 125 μm.
摘要翻译:一种光纤,包括:(i)具有第一折射率n 1的二氧化硅基稀土掺杂的核; (ii)围绕所述芯的基于二氧化硅的内包层,具有第二折射率n 2 2,使得n 1 2> n 2; (iii)围绕所述内包层的基于二氧化硅的外包层,其具有第三折射率n 3 3,使得n 2 2 N 3 N 3,其中 内包层直径至少为125μm。
摘要:
An optical fiber, comprising: (i) a rare earth doped silica based elongated core with a first refractive index (n1) with an aspect ratio of 1:5 to 1; (ii) a silica based moat abutting and at least substantially surrounding the core, the moat having a refractive index n2, wherein n2 n3; and n3>n2; (iv) a silica based outer cladding surrounding said inner cladding, the outer cladding having a fourth refractive index (n4), such that n4
摘要翻译:一种光纤,包括:(i)具有长宽比为1:5至1的第一折射率(n <1> 1)的稀土掺杂二氧化硅基细长芯; (ii)邻接并且至少基本上围绕所述芯的基于二氧化硅的护城河,所述护城河具有折射率n 2 N 2,其中n 2 ; (iii)围绕所述护城河的基于二氧化硅的内包层,所述内包层具有第三折射率(n 3/3),其中n 1 <3> n 3 < SUB>; 和n 3 3 sub> n 2; (iv)围绕所述内包层的基于二氧化硅的外包层,所述外包层具有第四折射率(n≥4 sub>),使得n 4 光纤在工作波长带表现出单极化。
摘要:
An optical fiber including: (i) a silica based, rare earth doped core having a first index of refraction n1; and (ii) at least one silica based cladding surrounding the core and having a second index of refraction n2, such that n1>n2, said cladding having a plurality of stress rods and a plurality of air holes extending longitudinally through the length of said optical fiber; wherein said optical fiber supports a single polarization mode or poses-polarization maintaining properties within the operating wavelength range.
摘要:
An optical fiber, comprising: (i) a rare earth doped silica based elongated core with a first refractive index (n1) with an aspect ratio of 1:5 to 1; (ii) a silica based moat abutting and at least substantially surrounding the core, the moat having a refractive index n2, wherein n2 n3; and n3>n2; (iv) a silica based outer cladding surrounding said inner cladding, the outer cladding having a fourth refractive index (n4), such that n4
摘要翻译:一种光纤,包括:(i)具有长宽比为1:5至1的第一折射率(n <1> 1)的稀土掺杂二氧化硅基细长芯; (ii)邻接并且至少基本上围绕所述芯的基于二氧化硅的护城河,所述护城河具有折射率n 2 N 2,其中n 2 ; (iii)围绕所述护城河的基于二氧化硅的内包层,所述内包层具有第三折射率(n 3/3),其中n 1 <3> n 3 < SUB>; 和n 3 3 sub> n 2; (iv)围绕所述内包层的基于二氧化硅的外包层,所述外包层具有第四折射率(n≥4 sub>),使得n 4 光纤在工作波长带表现出单极化。
摘要:
An optical fiber including: (i) a silica based, rare earth doped core having a first index of refraction n1; and (ii) at least one silica based cladding surrounding the core and having a second index of refraction n2, such that n1>n2, said cladding having a plurality of stress rods and a plurality of air holes extending longitudinally through the length of said optical fiber; wherein said optical fiber supports a single polarization mode or poses-polarization maintaining properties within the operating wavelength range.
摘要:
An optical fiber including: (i) a silica based, rare earth doped core having a first index of refraction n1; (ii) a silica based inner cladding surrounding the core and having a second index of refraction n2, such that n1>n2, said inner cladding having a plurality of air holes extending longitudinally through the length of said optical fiber; (iii) a silica based outer cladding surrounding said inner cladding and having a third index of refraction n3, such that n2>n3, wherein said optical fiber supports a single polarization mode within the operating wavelength range.
摘要翻译:一种光纤,包括:(i)具有第一折射率n 1的二氧化硅基稀土掺杂的芯; (ii)围绕所述芯并且具有第二折射率n 2 2的基于二氧化硅的内包层,使得n 1,N 2, 所述内包层具有沿所述光纤的长度纵向延伸的多个气孔; (iii)围绕所述内包层并具有第三折射率n 3 3的基于二氧化硅的外包层,使得n 2 N 3 N 3 其中所述光纤在工作波长范围内支持单一偏振模式。
摘要:
According to one example of the invention an optical fiber comprises: (i) a silica based core, said core having a core diameter greater than 80 μm and a numerical aperture NA≧0.24; and (ii) a silica based cladding in contact with and surrounding the core and having a second index of refraction n2, such that n1>n2; wherein the cladding includes B and F. Preferably the numerical aperture NA is at least 0.3.
摘要:
According to one example of the invention an optical fiber comprises: (i) a silica based core, said core having a core diameter greater than 80 μm and a numerical aperture NA≧0.24; and (ii) a silica based cladding in contact with and surrounding the core and having a second index of refraction n2, such that n1>n2; wherein the cladding includes B and F. Preferably the numerical aperture NA is at least 0.3.