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21. 发明授权

US07116887B2 Optical fiber 有权
标题翻译：光纤
公开(公告)号：US07116887B2
公开(公告)日：2006-10-03
申请号：US10619376
申请日：2003-07-11
申请人： Julia A. Farroni , Adrian Carter , Kanishka Tankala
发明人： Julia A. Farroni , Adrian Carter , Kanishka Tankala
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。

22. 发明申请

US20050008313A1 Cladding-pumped optical fiber and methods for fabricating 有权
标题翻译：包层泵浦光纤及其制造方法
公开(公告)号：US20050008313A1
公开(公告)日：2005-01-13
申请号：US10875749
申请日：2004-06-24
申请人： Kanishka Tankala , Adrian Carter
发明人： Kanishka Tankala , Adrian Carter
IPC分类号： C03B37/012 , G02B6/036 , H01S3/067 , G02B6/02 , G02B6/22
CPC分类号： G02B6/03633 , C03B37/01211 , C03B37/01225 , C03B37/01228 , C03B37/01234 , C03B2201/10 , C03B2201/12 , C03B2201/34 , C03B2201/50 , C03B2203/10 , C03B2203/12 , C03B2203/23 , H01S3/067 , H01S3/06708 , H01S3/06729 , H01S3/094007
摘要： Disclosed is an optical fiber article for receiving pump radiation of a first wavelength for amplifying or generating radiation of a second wavelength. The optical fiber article includes a core for propagating light of the second wavelength. The core has a first index of refraction and includes a rare earth material. A cladding surrounds the core and has a second index of refraction that is less than the first index of refraction. The outer circumference of the cladding can include a plurality of sections, where the plurality of sections includes at least one substantially straight section and one inwardly curved section. The optical fiber article can also include at least one outer layer surrounding the cladding, where the index of refraction of the outer layer is less than the second refractive index. Methods for producing the optical fiber article are also disclosed, as well as methods for providing a preform for drawing such an optical fiber article.
摘要翻译：公开了一种用于接收用于放大或产生第二波长的辐射的第一波长的泵浦辐射的光纤制品。光纤制品包括用于传播第二波长的光的芯。芯具有第一折射率并且包括稀土材料。包层围绕芯部并且具有小于第一折射率的第二折射率。包层的外周可以包括多个部分，其中多个部分包括至少一个基本上直的部分和一个向内弯曲的部分。光纤制品还可以包括围绕包层的至少一个外层，其中外层的折射率小于第二折射率。还公开了制造光纤制品的方法，以及用于提供用于拉制这种光纤制品的预成型件的方法。

23. 发明授权

US06477307B1 Cladding-pumped optical fiber and methods for fabricating 有权
标题翻译：包层泵浦光纤及其制造方法
公开(公告)号：US06477307B1
公开(公告)日：2002-11-05
申请号：US09694549
申请日：2000-10-23
申请人： Kanishka Tankala , Adrian Carter
发明人： Kanishka Tankala , Adrian Carter
IPC分类号： G02B602
CPC分类号： G02B6/03633 , C03B37/01211 , C03B37/01225 , C03B37/01228 , C03B37/01234 , C03B2201/10 , C03B2201/12 , C03B2201/34 , C03B2201/50 , C03B2203/10 , C03B2203/12 , C03B2203/23 , H01S3/067 , H01S3/06708 , H01S3/06729 , H01S3/094007
摘要： Disclosed is an optical fiber article for receiving pump radiation of a first wavelength for amplifying or generating radiation of a second wavelength. The optical fiber article includes a core for propagating light of the second wavelength. The core has a first index of refraction index and includes a rare earth material. A cladding surrounds the core and has a second index of refraction that is less than the first index of refraction. The outer circumference of the cladding can include a plurality of sections, where the plurality of sections includes at least one substantially straight section and one inwardly curved section. The optical fiber article can also include at least one outer layer surrounding the cladding, where the index of refraction of the outer layer is less than the second refractive index. Methods for producing the optical fiber article are also disclosed, as well as methods for providing a preform for drawing such an optical fiber article.
摘要翻译：公开了一种用于接收用于放大或产生第二波长的辐射的第一波长的泵浦辐射的光纤制品。光纤制品包括用于传播第二波长的光的芯。核心具有第一折射率指数，并包括稀土材料。包层围绕芯部并且具有小于第一折射率的第二折射率。包层的外周可以包括多个部分，其中多个部分包括至少一个基本上直的部分和一个向内弯曲的部分。光纤制品还可以包括围绕包层的至少一个外层，其中外层的折射率小于第二折射率。还公开了制造光纤制品的方法，以及用于提供用于拉制这种光纤制品的预成型件的方法。

24. 发明授权

US06779364B2 Cladding-pumped optical fiber and methods for fabricating 有权
标题翻译：包层泵浦光纤及其制造方法
公开(公告)号：US06779364B2
公开(公告)日：2004-08-24
申请号：US10287322
申请日：2002-11-04
申请人： Kanishka Tankala , Adrian Carter
发明人： Kanishka Tankala , Adrian Carter
IPC分类号： G02B600
CPC分类号： G02B6/03633 , C03B37/01211 , C03B37/01225 , C03B37/01228 , C03B37/01234 , C03B2201/10 , C03B2201/12 , C03B2201/34 , C03B2201/50 , C03B2203/10 , C03B2203/12 , C03B2203/23 , H01S3/067 , H01S3/06708 , H01S3/06729 , H01S3/094007
摘要： Disclosed is an optical fiber article for receiving pump radiation of a first wavelength for amplifying or generating radiation of a second wavelength. The optical fiber article includes a core for propagating light of the second wavelength. The core has a first index of refraction and includes a rare earth material. A cladding surrounds the core and has a second index of refraction that is less than the first index of refraction. The outer circumference of the cladding can include a plurality of sections, where the plurality of sections includes at least one substantially straight section and one inwardly curved section. The optical fiber article can also include at least one outer layer surrounding the cladding, where the index of refraction of the outer layer is less than the second refractive index. Methods for producing the optical fiber article are also disclosed, as well as methods for providing a preform for drawing such an optical fiber article.
摘要翻译：公开了一种用于接收用于放大或产生第二波长的辐射的第一波长的泵浦辐射的光纤制品。光纤制品包括用于传播第二波长的光的芯。芯具有第一折射率并且包括稀土材料。包层围绕芯部并且具有小于第一折射率的第二折射率。包层的外周可以包括多个部分，其中多个部分包括至少一个基本上直的部分和一个向内弯曲的部分。光纤制品还可以包括围绕包层的至少一个外层，其中外层的折射率小于第二折射率。还公开了制造光纤制品的方法，以及用于提供用于拉制这种光纤制品的预成型件的方法。

25. 发明授权

US06687445B2 Double-clad optical fiber for lasers and amplifiers 有权
标题翻译：用于激光和放大器的双包层光纤
公开(公告)号：US06687445B2
公开(公告)日：2004-02-03
申请号：US09888916
申请日：2001-06-25
申请人： Adrian Carter , Kanishka Tankala , Martin Seifert
发明人： Adrian Carter , Kanishka Tankala , Martin Seifert
IPC分类号： G02B602
CPC分类号： G02B6/03622 , C03B37/01294 , C03B37/014 , C03B2201/28 , C03B2201/34 , C03B2203/23 , C03C25/105 , C03C25/47 , G02B6/02295 , G02B6/02376 , G02B6/03694 , H01S3/06729 , H01S3/094007
摘要： A double-clad optical fiber includes a core, a multimode inner cladding layer disposed about the core, and a second cladding layer disposed about the inner cladding layer. The core includes an active material for absorbing pump radiation received by the inner cladding. The multimode inner cladding includes truncated regions including a first material, where the first material has an index of refraction that is different than the material of the inner cladding that surrounds said truncated regions, for promoting the scattering of pump radiation propagating in the multimode inner cladding for increasing the absorption of the pump radiation by the active material of the core. Particles can be distributed in soot deposited via Outside Vapor Deposition for forming the truncated regions in an optical fiber drawn from the preform.
摘要翻译：双包层光纤包括芯，围绕芯设置的多模内包层和围绕内包层设置的第二包层。该芯包括用于吸收由内包层接收的泵浦辐射的活性材料。多模内包层包括包括第一材料的截面区域，其中第一材料的折射率不同于围绕所述截顶区域的内包层的材料，用于促进在多模内包层中传播的泵浦辐射的散射用于增加核辐射的活性物质对泵辐射的吸收。颗粒可以分布在通过外部气相沉积沉积的烟灰中，用于在从预成型体拉制的光纤中形成截面区域。

26. 发明授权

US07386210B2 Optical fiber 失效
标题翻译：光纤
公开(公告)号：US07386210B2
公开(公告)日：2008-06-10
申请号：US11538334
申请日：2006-10-03
申请人： Julia A. Farroni , Adrian Carter , Kanishka Tankala
发明人： Julia A. Farroni , Adrian Carter , Kanishka Tankala
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。

27. 发明授权

US06625363B2 Cladding-pumped optical fiber 有权
公开(公告)号：US06625363B2
公开(公告)日：2003-09-23
申请号：US09875751
申请日：2001-06-06
申请人： Adrian Carter , Kanishka Tankala , Nils J. Jacobson
发明人： Adrian Carter , Kanishka Tankala , Nils J. Jacobson
IPC分类号： G02B622
CPC分类号： G02B6/03638 , C03B2201/34 , C03B2203/23 , C03C25/105 , C03C25/47 , G02B6/02 , G02B6/02295 , G02B6/02376 , G02B6/02395 , G02B6/03694 , H01S3/06716 , H01S3/06729 , H01S3/094007
摘要： Optical apparatus including a cladding-pumped optical fiber that includes a core that includes an active material, a multimode inner cladding disposed about the core, and a second cladding disposed about the multimode inner cladding. The cladding-pumped optical fiber can include, disposed about the inner cladding layer, an asymmetrical layer, a layer that includes granular matter, a compressive layer, or a hard layer. External provision can be included for applying stress to the cladding-pumped optical fiber.

28. 发明申请

US20110280584A1 OPTICAL FIBER WITH SUPPRESSED STIMULATED BRILLOUIN SCATTERING 有权
标题翻译：具有抑制刺激的荧光散射的光纤
公开(公告)号：US20110280584A1
公开(公告)日：2011-11-17
申请号：US13145653
申请日：2010-01-22
申请人： Kanishka Tankala , Kevin Farley
发明人： Kanishka Tankala , Kevin Farley
IPC分类号： H04B10/12
CPC分类号： G02B6/03694 , C03C13/045 , G02B6/03633 , G02B6/03638 , G02B6/03661
摘要： The present invention relates to optical fibers useful for the transmission of electromagnetic energy at such high levels of power that stimulated Brillouin scattering (SBS) may be of importance. One aspect of the present invention is an optical fiber for the propagation of optical radiation having an optical wavelength, the optical fiber and optical wavelength having an SBS acoustic wavelength associated therewith, the optical fiber comprising a core having a geometrical center and an outer perimeter; and a cladding surrounding the core; wherein the core is rare earth doped and substantially free of germanium, the optical fiber has a refractive index profile such that the core is guiding for optical radiation having the optical wavelength, and the optical fiber has an acoustic index profile such that the core is antiguiding for an acoustic wave having the SBS acoustic wavelength.
摘要翻译：本发明涉及用于在受激布里渊散射（SBS）可能是重要的如此高的功率级传输电磁能量的光纤。本发明的一个方面是用于传播具有光波长的光辐射的光纤，所述光纤和光波长具有与之相关联的SBS声波长，所述光纤包括具有几何中心和外周的芯; 和围绕芯的包层; 其中所述芯是稀土掺杂并且基本上不含锗，所述光纤具有折射率分布，使得所述芯被引导用于具有所述光学波长的光辐射，并且所述光纤具有声学指数分布，使得所述芯是抗磁化的对于具有SBS声波长的声波。

29. 发明授权

US09014522B2 Optical couplers and methods for making same 有权
标题翻译：光耦合器及其制作方法
公开(公告)号：US09014522B2
公开(公告)日：2015-04-21
申请号：US13996916
申请日：2011-12-21
申请人： Imtiaz Majid , Chih-Hao Wang , Kanishka Tankala
发明人： Imtiaz Majid , Chih-Hao Wang , Kanishka Tankala
IPC分类号： G02B6/26 , G02B6/27 , G02B6/28 , B29D11/00 , G02B6/02 , H01S3/067 , H01S3/07 , H01S3/094
CPC分类号： G02B6/274 , B29D11/00711 , G02B6/02109 , G02B6/2843 , H01S3/06712 , H01S3/0675 , H01S3/07 , H01S3/094011 , H01S3/094019 , H01S3/09408
摘要： The present invention relates generally to optical waveguides for the transmission of electromagnetic energy. The present invention relates more particularly to optical couplers for coupling optical fibers, and methods for making them. One aspect of the present invention is an optical coupler for use with a polarization-maintaining input optical fiber and a polarization-maintaining output optical fiber. The coupler includes: a tube having a wide end, a narrow end having an end face, and a taper therebetween; a polarization-maintaining feed-through optical fiber having a first end having an end face and a second end, the polarization-maintaining feed-through optical fiber being disposed within the tube from the wide end to the narrow end, at least the narrow end of the tube being fused around a first length of the polarization-maintaining feed-through optical fiber including the first end of the polarization-maintaining feed-through optical fiber to form a coupler end face comprising the end face of the tube and the end face of the first end of the polarization-maintaining feed-through optical fiber. In one aspect of the invention, the polarization-maintaining feed-through optical fiber has an outer diameter no greater than about 200 μm in the region in which the tube is fused around it. In another aspect of the invention, the polarization-maintaining feed-through optical fiber has an outer diameter at the coupler end face no greater than about 75% of the diameter of the polarization-maintaining input optical fiber.
摘要翻译：本发明一般涉及用于传输电磁能的光波导。本发明更具体地涉及用于耦合光纤的光耦合器及其制造方法。本发明的一个方面是一种用于偏振保持输入光纤和偏振保持输出光纤的光耦合器。联接器包括：具有宽端的管，具有端面的窄端和其间的锥形; 一种偏振保持馈通光纤，其具有端面和第二端的第一端，所述偏振保持馈通光纤从宽端至窄端设置在管内，至少窄端所述管被围绕包括所述偏振保持馈通光纤的所述第一端的所述偏振保持馈通光纤的第一长度熔合以形成包括所述管的端面和所述端面的耦合器端面的偏振保持馈通光纤的第一端。在本发明的一个方面，偏振保持馈通光纤在其周围熔合的区域中具有不大于约200μm的外径。在本发明的另一方面，偏振保持馈通光纤在耦合器端面处的外径不大于偏振波保持输入光纤的直径的大约75％。

30. 发明授权

US07724422B2 Method and apparatus for providing light having a selected polarization with an optical fiber 有权
标题翻译：用光纤提供具有所选极化的光的方法和装置
公开(公告)号：US07724422B2
公开(公告)日：2010-05-25
申请号：US10597592
申请日：2005-01-31
申请人： Jaroslaw Abramczyk , Upendra H. Manyam , Bryce N. Samson , Kanishka Tankala
发明人： Jaroslaw Abramczyk , Upendra H. Manyam , Bryce N. Samson , Kanishka Tankala
IPC分类号： H01S3/00
CPC分类号： G02B6/14 , G02B6/024 , G02B6/105 , H01S3/06712 , H01S3/06729 , H01S3/0675 , H01S3/094007 , H01S3/0941 , H01S3/1618
摘要： Optical apparatus (110, 500, 600, 800, 1000) for providing light having a selected linear polarization having a polarization ratio, the apparatus (110, 500, 600, 800, 1000) comprising a length of optical fiber (120, 504, 604, 804, 1001) comprising a rare earth for providing light having a first wavelength responsive to receiving pump light having a second wavelength that is different than said first wavelength, wherein if the length of optical fiber (120, 504, 604, 804, 1004) were placed in a first position between the length of fiber (120, 504, 604, 804, 1004) is substantially linearly oriented (20) the fiber (120, 504, 604, 804, 1004) could propagate at the first wavelength a fundamental mode and a plurality of higher order modes and the apparatus (110, 500, 600, 800, 1000) could provide light having a first polarization ratio for the selected linear polarization and an M2 parameter, and wherein the length of fiber (120, 504, 604, 804, 1004) is positioned in a second position that increases the bend loss of the fiber relative to the first position such that, responsive to the increased bend loss, the apparatus (110, 500, 600, 800, 1000) can provide light having a reduced M2 parameter as well as a second polarization ratio for the selected polarization that is increased relative to the first polarization ratio, the increase being at least 6 dB greater than the first polarization ratio, and wherein when the length of fiber (120, 504, 604, 804, 1004) is in the second position the apparatus (110, 500, 600, 800, 1000) can provide a slope efficiency that is at least 50% of the ratio of the second wavelength to the first wavelength.
摘要翻译：用于提供具有偏振比的所选线性偏振光的光学装置（110,500,600,800,1000），所述装置（110,500,600,800,1000）包括一段长度的光纤（120,504，包括稀土，用于提供响应于接收具有不同于所述第一波长的第二波长的泵浦光的具有第一波长的光，其中如果光纤的长度（120,504,604,801， 1004）被放置在光纤（120,504,604,804,1004）的长度之间的第一位置，基本上线性地定向（20），光纤（120,504,604,804,1004）可以在第一波长处传播基本模式和多个高阶模式，并且所述装置（110,500,600,800,1000）可以提供具有用于所选择的线性偏振的第一偏振比的光和M2参数，并且其中光纤的长度（120 ，504,604,804,1004）定位在第二位置，折射纤维相对于第一位置的弯曲损耗，使得响应于增加的弯曲损耗，装置（110,500,600,800,1000）可以提供具有减小的M2参数以及第二偏振比的光对于相对于第一偏振比增加的所选偏振，增加比第一偏振比大至少6dB，并且其中当光纤（120,504,604,804,1004）的长度在第二偏振比定位装置（110,500,600,800,1000）可以提供至少为第二波长与第一波长的比率的50％的斜率效率。

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