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41. 发明申请

WO2005031401A3 APPARATUS AND METHODS FOR ACCOMMODATING LOOPS OF OPTICAL FIBER 审中-公开
标题翻译：用于容纳光纤线圈的装置和方法
公开(公告)号：WO2005031401A3
公开(公告)日：2005-08-04
申请号：PCT/US2004031723
申请日：2004-09-27
申请人： NUFERN , SEIFERT MARTIN
发明人： SEIFERT MARTIN
IPC分类号： G02B20060101 , G02B6/00 , G02B6/44
CPC分类号： G02B6/4457 , H01S3/06704
摘要： Disclosed is an optical apparatus (10, 110, 410, 610) for accommodating optical fiber, such as one or more loops of optical fiber. The optical apparatus (10, 110, 410, 610) can include a body (12, 112, 412, 612) comprising an inwardly facing surface (16, 116, 416, 616) adapted for receiving a plurality of loops of a length of optical fiber. The body (16, 116, 416, 616) can include at least a portion (75) wherein the inwardly facing surface is continuous between two adjacent loops (79). Methods and apparatus are disclosed for disposing the optical fiber with an optical apparatus (10, 110, 410, 610) for accommodating the optical fiber.
摘要翻译：公开了一种用于容纳光纤的光学设备（10,110,410,610），例如一个或多个光纤回路。该光学设备（10,110,410,610）可以包括主体（12,112,412,612），该主体包括面向内的表面（16,116,416,616），该表面适于接收长度为光纤。主体（16,116,416,616）可以包括至少一部分（75），其中面向内的表面在两个相邻环（79）之间是连续的。公开了用于利用用于容纳光纤的光学设备（10,110,410,610）来布置光纤的方法和设备。

42. 发明申请

WO2002101889A2 COMPRESSION-TUNABLE FIBER LASER AND COMPRESSION-RESISTANT OPTICAL FIBER FOR LASERS 审中-公开
标题翻译：用于激光的可压缩光纤激光器和耐压光纤
公开(公告)号：WO2002101889A2
公开(公告)日：2002-12-19
申请号：PCT/US2002/018873
申请日：2002-06-11
申请人： NUFERN , CARTER, Adrian
发明人： CARTER, Adrian
IPC分类号： H01S
CPC分类号： G02B6/255 , G02B6/4202 , G02B6/4204 , G02B6/424 , G02B6/429 , H01S3/06704 , H01S3/06708 , H01S3/0675 , H01S3/102 , H01S3/1053 , H01S3/1055
摘要： The present invention provides an optical fiber which inherently has sufficient mechanical strength in compression to facilitate compression tuning of a grating therein. This is achieved by manufacturing a fiber that has an unusually large diameter cladding and a substantially single mode core. The fiber includes optically active material so that the fiber can be employed in a fiber laser. The fiber is preferably photosensitive so that the grating(s) can be written into the fiber after manufacture, although other means of impressing, forming or writing the grating are envisaged and the grating(s) can be written into the fiber at the time of manufacture, if desired.
摘要翻译：本发明提供了一种光纤（20），其固有地具有足够的压缩机械强度以便于其中的光栅（26a，26b）的压缩调谐。这通过制造具有非常大直径的包层和基本单模芯（22）的光纤（20）来实现。纤维（20）包括光学活性材料，使得纤维（20）可以用于光纤激光器。纤维（20）优选是光敏的，使得在制造之后可以将光栅（26a，26b）写入光纤（20），尽管设想了施加，形成或写入光栅（26a，26b）的其它装置如果需要，可以在制造时将光栅（26a，26b）写入光纤（20）。

43. 发明申请

WO2002059660A1 CLADDING-PUMPED OPTICAL FIBER AND METHODS FOR FABRICATING 审中-公开
标题翻译：封闭式光纤和制造方法
公开(公告)号：WO2002059660A1
公开(公告)日：2002-08-01
申请号：PCT/US2001/050733
申请日：2001-10-19
申请人： NUFERN , TANKALA, Kanishka , CARTER, Adrian
发明人： TANKALA, Kanishka , CARTER, Adrian
IPC分类号： G02B6/02
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 (10) for receiving pump radiation of a first wavelength for amplifying or generating radiation of a second wavelength. The optical fiber article includes a core (14) for propagating light of the second wavelength. The core has a first index of refraction index and includes a rare earth material. A cladding (16) 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 (36B) and one inwardly curved section (36A). 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（10）。光纤制品包括用于传播第二波长的光的芯（14）。核心具有第一折射率指数，并包括稀土材料。包层（16）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（36B）和一个向内弯曲的部分（36A）。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。

44. 发明公开

US20240061265A1 DUAL-GRATING SPECTRAL BEAM COMBINER 审中-公开
公开(公告)号：US20240061265A1
公开(公告)日：2024-02-22
申请号：US18450696
申请日：2023-08-16
申请人： Nufern
发明人： Nathan SORNBORGER
IPC分类号： G02B27/10 , G02B27/09 , G02B27/30 , G02B27/42
CPC分类号： G02B27/1006 , G02B27/0944 , G02B27/30 , G02B27/4277 , G02B27/0966
摘要： A dual-grating spectral beam combiner includes a series of sources emitting a respective series of diverging laser beams with mutually parallel center rays offset from each other in a one-dimensional array. The laser beam wavelengths are incremented monotonically across the array. A first diffraction grating receives the diverging laser beams from the sources and diffracts the diverging laser beams to form respective once-diffracted diverging beams with mutually converging center rays. A second diffraction grating is positioned where the center rays of the once-diffracted diverging beams coincide, and diffracts the once-diffracted diverging beams to form a single combined diverging laser beam consisting of twice-diffracted diverging beams. The combined diverging laser beam may be subsequently collimated. By operating the dual-grating spectral beam combiner with diverging beams, it is possible to combine a high number of laser beams while keeping the propagation path between the two gratings short without requiring narrow linewidths.

45. 发明授权

US09411109B2 Optical fiber mount 有权
标题翻译：光纤支架
公开(公告)号：US09411109B2
公开(公告)日：2016-08-09
申请号：US14488063
申请日：2014-09-16
申请人： Nufern
发明人： David Machewirth , David Björk , David Hosmer , Joshua Galipeau
IPC分类号： G02B6/00 , G02B6/36
CPC分类号： G02B6/3616
摘要： The present invention relates generally to a mount for securely holding an optical fiber in place, for example, on an optical bench or a translation stage. In one embodiment, the mount includes a lower block having a first portion, which has an upward-facing channel formed in the top surface thereof and extending from the front surface to the rear region. The channel forms a groove at its bottom. The mount further includes an upper block disposed over the first portion of the lower block. The upper block has a downward-facing ridge that includes one or more holding surfaces disposed adjacent the groove and extending along the downward-facing ridge. The upper block is held against the first portion of the lower block, such that the one or more holding surfaces are positioned to hold the optical fiber in the groove.
摘要翻译：本发明一般涉及用于将光纤固定地保持在适当位置的安装座，例如在光学平台或平台上。在一个实施例中，安装座包括具有第一部分的下部块，该第一部分具有形成在其顶部表面中并且从前表面延伸到后部区域的向上通道。通道在其底部形成凹槽。安装件还包括设置在下部块的第一部分上的上部块。上部块具有向下的脊，其包括一个或多个保持表面，该保持表面邻近凹槽设置并且沿向下的脊部延伸。上块被保持抵靠下块的第一部分，使得一个或多个保持表面被定位成将光纤保持在槽中。

46. 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％。

47. 发明授权

US07817683B2 Pulsed linearly polarized optical fiber laser using unpolarized Q-switched seed laser and having good output power stability 有权
标题翻译：脉冲线性偏振光纤激光器采用非偏振Q开关种子激光器，具有良好的输出功率稳定性
公开(公告)号：US07817683B2
公开(公告)日：2010-10-19
申请号：US12358012
申请日：2009-01-22
申请人： Victor Khitrov
发明人： Victor Khitrov
IPC分类号： H01S3/30
CPC分类号： H01S3/06754 , H01S3/06712 , H01S3/08045 , H01S3/09415 , H01S3/1618
摘要： Optical fiber source for providing polarized optical pulses, comprising a Q-switched fiber laser for providing substantially unpolarized seed pulses of optical energy, where the Q-switched fiber laser can comprise a laser cavity having a Q-switch and an optical fiber comprising a gain medium, where the optical fiber need not be a polarizing or polarization maintaining optical fiber; a passive polarizing element arranged to receive and substantially polarize the substantially unpolarized seed pulses; and a polarization maintaining fiber amplifier arranged for receiving the polarized seed pulses. The polarization maintaining fiber amplifier can comprise a selected polarizing or polarization maintaining fiber having a core comprising a gain medium for amplifying the substantially polarized seed pulses, where the core can be normally multimode at a an operating wavelength of the optical fiber source. The fiber amplifier can provide substantially polarized output pulses. In one practice of the invention, the pulse power instability, over at least 100 consecutive pulses, is no greater than 10%.
摘要翻译：用于提供偏振光脉冲的光纤源，包括用于提供基本上非偏振的光能种子脉冲的Q开关光纤激光器，其中Q开关光纤激光器可以包括具有Q开关的激光腔和包括增益的光纤介质，其中光纤不需要是偏振或偏振保持光纤; 无源偏振元件，被布置成接收和基本上极化基本上非偏振的种子脉冲; 以及设置用于接收极化种子脉冲的偏振保持光纤放大器。偏振维持光纤放大器可以包括所选择的偏振或偏振保持光纤，其具有包括用于放大基本偏振的种子脉冲的增益介质的核，其中核可以在光纤源的工作波长处正常多模。光纤放大器可以提供基本偏振的输出脉冲。在本发明的一个实践中，在至少100个连续脉冲中的脉冲功率不稳定性不大于10％。

48. 发明授权

US07371019B2 Method and apparatus for sensing light 有权
标题翻译：用于感测光的方法和装置
公开(公告)号：US07371019B2
公开(公告)日：2008-05-13
申请号：US11300572
申请日：2005-12-13
申请人： Martin Seifert
发明人： Martin Seifert
IPC分类号： G02B6/255
CPC分类号： H01S3/0675 , G01M11/37 , G02B6/02085 , G02B6/2551 , G02B6/2804 , H01S3/06704 , H01S3/09415 , H01S3/1312
摘要： Disclosed is an optical apparatus including an optical fiber having a wavelength of operation, the optical fiber comprising a first length of the optical fiber joined to a second length of the optical fiber with a splice such that the first and second lengths are in optical communication; a photodetector for sensing light leaking from the splice; and wherein the splice has a splice loss of not greater than 0.5 dB at the wavelength of operation. Methods of sensing light are also disclosed.
摘要翻译：公开了一种包括具有波长工作的光纤的光学装置，所述光纤包括以第一和第二长度光学通信的方式接合到所述光纤的第二长度的第二长度的所述光纤的第一长度; 用于感测从接头泄漏的光的光电检测器; 并且其中所述接头在操作波长处具有不大于0.5dB的接头损耗。还公开了感测光的方法。

49. 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。

50. 发明授权

US07050686B2 Fiber optic article with inner region 有权
公开(公告)号：US07050686B2
公开(公告)日：2006-05-23
申请号：US10911812
申请日：2004-08-05
申请人： Julia A. Farroni , Upendra H. Manyam , Nils Jacobson , Kanishka Tankala , Adrian Carter
发明人： Julia A. Farroni , Upendra H. Manyam , Nils Jacobson , Kanishka Tankala , Adrian Carter
IPC分类号： G02B6/00 , 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.

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