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公开(公告)号：US07116887B2
公开(公告)日：2006-10-03
申请号：US10619376
申请日：2003-07-11
IPC分类号： G02B6/17
CPC分类号： G02B6/02114 , C03B37/01217 , C03B37/01231 , C03B2201/10 , C03B2201/12 , C03B2201/28 , C03B2201/31 , C03B2201/34 , C03B2201/42 , C03B2203/23 , C03B2203/31 , G02B6/024
摘要： An optical fiber comprises a photosensitive core that includes a concentration of a first material that increases the refractive index of the core and a concentration of a second material that is other than boron and that reduces the refractive index of the core. A cladding is disposed about the core for tending to confine light to the core. The fiber also includes at least one longitudinally extending region having a thermal coefficient of expansion that is different from the thermal coefficient of expansion of the cladding. In another embodiment, the core includes a concentration of germanium and a concentration of boron. Also disclosed is a polarization-maintaining double-clad (PM DC) fiber comprising one or both of at least one circular axially extending stress inducing region(s) and an inner cladding comprising a circular outer perimeter. Fibers according to the invention can include a rare earth dopant for emitting light of a selected wavelength responsive to being pumped by pump light of a pump wavelength that is different than the selected wavelength.
摘要翻译： 光纤包括感光芯，其包括提高芯的折射率的第一材料的浓度和不同于硼的第二材料的浓度，并降低芯的折射率。 围绕芯部布置包层以倾向于将光限制在芯部上。 纤维还包括具有不同于包层的热膨胀系数的热膨胀系数的至少一个纵向延伸区域。 在另一个实施方案中，芯包括锗的浓度和硼的浓度。 还公开了一种包括至少一个圆形轴向延伸的应力诱导区域和包含圆形外周边的内包层中的一个或两个的偏振保持双包层（PMDC）光纤。 根据本发明的纤维可以包括用于发射选定波长的光的稀土掺杂剂，其响应于通过不同于所选波长的泵浦波长的泵浦光泵浦。
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公开(公告)号：US07050686B2
公开(公告)日：2006-05-23
申请号：US10911812
申请日：2004-08-05
CPC分类号： G02B6/024
摘要： A fiber optic article can comprise a core, an inner region disposed about the core and a cladding disposed about the inner region. The index of refraction of the cladding can be less than that of the inner region, and the index of refraction of the inner region can be less than that of the core. The fiber can include a second cladding disposed about the cladding, where the second cladding has an index of refraction that is less than the index of refraction of the cladding. The inner region can have a non circular outer perimeter that includes at least one inwardly oriented section. The article can be elongate along a longitudinal axis and can include at least one longitudinally extending region, such as a stress inducing region, for providing birefringence and the inwardly oriented region can face the longitudinally extending region. The fiber optic article can include active material for providing light responsive to the article receiving pump light, such as, for example, one or more rare earths. The rare earths can include erbium and ytterbium.
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公开(公告)号：US07634164B2
公开(公告)日：2009-12-15
申请号：US11419907
申请日：2006-05-23
IPC分类号： G02B6/02
CPC分类号： G02B6/024
摘要： A fiber optic article can comprise a core, an inner region disposed about the core and a cladding disposed about the inner region. The index of refraction of the cladding can be less than that of the inner region, and the index of refraction of the inner region can be less than that of the core. The fiber can include a second cladding disposed about the cladding, where the second cladding has an index of refraction that is less than the index of refraction of the cladding. The inner region can have a non circular outer perimeter that includes at least one inwardly oriented section. The article can be elongate along a longitudinal axis and can include at least one longitudinally extending region, such as a stress inducing region, for providing birefringence and the inwardly oriented region can face the longitudinally extending region. The fiber optic article can include active material for providing light responsive to the article receiving pump light, such as, for example, one or more rare earths. The rare earths can include erbium and ytterbium.
摘要翻译： 光纤制品可以包括芯，围绕芯设置的内部区域和围绕内部区域设置的包层。 包层的折射率可以小于内部区域的折射率，并且内部区域的折射率可以小于芯部的折射率。 纤维可以包括围绕包层设置的第二包层，其中第二包层的折射率小于包层的折射率。 内部区域可以具有包括至少一个向内定向的部分的非圆形外周边。 该制品可以沿纵向轴线延伸并且可以包括至少一个纵向延伸区域，例如应力诱导区域，用于提供双折射，并且向内取向区域可面向纵向延伸区域。 光纤制品可以包括用于提供响应于物品接收泵浦光的光的活性材料，例如一个或多个稀土。 稀土可以包括铒和镱。
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公开(公告)号：US07386210B2
公开(公告)日：2008-06-10
申请号：US11538334
申请日：2006-10-03
IPC分类号： G02B6/00
CPC分类号： G02B6/02114 , C03B37/01217 , C03B37/01231 , C03B2201/10 , C03B2201/12 , C03B2201/28 , C03B2201/31 , C03B2201/34 , C03B2201/42 , C03B2203/23 , C03B2203/31 , G02B6/024
摘要： An optical fiber comprises a photosensitive core that includes a concentration of a first material that increases the refractive index of the core and a concentration of a second material that is other than boron and that reduces the refractive index of the core. A cladding is disposed about the core for tending to confine light to the core. The fiber also includes at least one longitudinally extending region having a thermal coefficient of expansion that is different from the thermal coefficient of expansion of the cladding. In another embodiment, the core includes a concentration of germanium and a concentration of boron. Also disclosed is a polarization-maintaining double-clad (PM DC) fiber comprising one or both of at least one circular axially extending stress inducing region(s) and an inner cladding comprising a circular outer perimeter. Fibers according to the invention can include a rare earth dopant for emitting light of a selected wavelength responsive to being pumped by pump light of a pump wavelength that is different than the selected wavelength.
摘要翻译： 光纤包括感光芯，其包括提高芯的折射率的第一材料的浓度和不同于硼的第二材料的浓度，并降低芯的折射率。 围绕芯部布置包层以倾向于将光限制在芯部上。 纤维还包括具有不同于包层的热膨胀系数的热膨胀系数的至少一个纵向延伸区域。 在另一个实施方案中，芯包括锗的浓度和硼的浓度。 还公开了一种包括至少一个圆形轴向延伸的应力诱导区域和包含圆形外周边的内包层中的一个或两个的偏振保持双包层（PMDC）光纤。 根据本发明的纤维可以包括用于发射选定波长的光的稀土掺杂剂，其响应于通过不同于所选波长的泵浦波长的泵浦光泵浦。
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公开(公告)号：US07062137B2
公开(公告)日：2006-06-13
申请号：US10912666
申请日：2004-08-05
CPC分类号： G02B6/105 , G02B6/02009 , G02B6/02033 , G02B6/024 , G02B6/03638 , G02B6/03661 , G02B6/03688 , G02B6/03694 , H01S3/06729 , H01S3/094007
摘要： A fiber optic article, such as an optical fiber or an optical preform, can include a core comprising a concentration of erbium, a concentration of fluorine and a concentration of ytterbium for sensitizing the erbium by absorbing pump light and transferring energy to the erbium. The erbium can provide light having a second wavelength different than the wavelength of the pump light. The article can also include a concentration of phosphorus. The fiber optic article can include a cladding disposed about the core, where the cladding has an index of refraction that is less than the index of refraction of the core, and a second cladding disposed about the first cladding, where the second cladding includes an index of refraction than is less than the index of refraction of the cladding. The fiber optic article can be elongate along a longitudinal axis and can include a longitudinally extending region for providing birefringence.
摘要翻译： 诸如光纤或光学预型件之类的光纤制品可以包括铒的浓度，氟浓度和镱的浓度，用于通过吸收泵浦光并将能量转移到铒来使铒增感。 铒可以提供具有与泵浦光的波长不同的第二波长的光。 该物品还可以包括磷的浓度。 光纤制品可以包括围绕芯设置的包层，其中包层的折射率小于芯的折射率，以及围绕第一包层设置的第二包层，其中第二包层包括指数 的折射率小于包层的折射率。 光纤制品可以沿着纵向轴线延伸并且可以包括用于提供双折射的纵向延伸区域。
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公开(公告)号：US07110647B2
公开(公告)日：2006-09-19
申请号：US10910924
申请日：2004-08-03
IPC分类号： G02B6/024
CPC分类号： C03B37/01217 , C03B2201/34 , C03B2203/23 , C03B2203/302 , C03B2203/31 , G02B6/024 , G02B6/03622 , G02B6/03694 , Y02P40/57
摘要： A polarization maintaining optical fiber has a core extending along a longitudinal axis, where the core includes a rare earth and a first index of refraction. A cladding is disposed about the core and has a first thermal coefficient of expansion (TCE) and a second index of refraction that is less than the first index of refraction. The fiber can include a pair of longitudinally extending members, and each of the members can have a TCE that is different than the first TCE of the cladding. The pair can be spaced apart by a distance di. A second cladding can be disposed about the first cladding, and the second cladding can have a third index of refraction that is less than the second index of refraction. The fiber can have a fundamental mode having a mode field diameter (MFD). The core can be a multimode core having a diameter dc that is greater than or equal to 15 microns, the numerical aperture of the core relative to the first cladding can be less than or equal to 0.12, the ratio di/MFD can be greater than 3, and the fiber can provide a beat length of less than 3 mm, where the beat length is measured at a wavelength of 633 nm.
摘要翻译： 偏振保持光纤具有沿纵轴延伸的芯，其中芯包括稀土和第一折射率。 包层设置在芯周围，并且具有小于第一折射率的第一热膨胀系数（TCE）和第二折射率。 纤维可以包括一对纵向延伸的构件，并且每个构件可以具有与包层的第一TCE不同的TCE。 该对可以间隔一段距离d i。 可以围绕第一包层设置第二包层，并且第二包层可以具有小于第二折射率的第三折射率。 光纤可以具有模场直径（MFD）的基模。 芯可以是直径大于或等于15微米的多模芯，芯相对于第一包层的数值孔径可以小于或等于0.12， 比率d可以大于3，并且纤维可以提供小于3mm的拍子长度，其中在633nm的波长处测量拍子长度。
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