公开(公告)号：US20030103748A1

公开(公告)日：2003-06-05

申请号：US10312911

申请日：2003-01-03

Inventor： Masaaki Hirano ,  Masashi Onishi ,  Hideyuki Ijiri

IPC: G02B006/18 ,  G02B006/16 ,  C03B037/027

CPC classification number: G02B6/03627 ,  C03B37/01248 ,  C03B37/0126 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/36 ,  G02B6/02004 ,  G02B6/02238 ,  G02B6/02261 ,  G02B6/03611

Abstract: An object of the present invention is to provide a method for manufacturing an optical fiber preform having a great diameter by reducing an eccentricity or a non-circularity of a core, an optical fiber preform having an small non-circularity and a complex refractive index profile, even with a great diameter, and an optical fiber that is applicable as a dispersion compensating fiber. The present invention involves a rod-in collapse process in which a glass rod is fixed within a glass pipe (or a dummy pipe attached to an end portion) via an aligning jig. The fixation via the aligning jig is made at one end or both ends, the aligning jig has a cylindrical shape with or without one or more reduced diameter portions. When fixed at one end, a heating and integrating process is preferably made from an opposite end. Employing the glass rod and the glass pipe having a refractive index distribution, a complex profile can be realized.

Abstract translation: 本发明的目的是提供一种通过减小芯的偏心度或非圆度来制造具有大直径的光纤预制件的方法，具有小的非圆度和复折射率分布的光纤预制件 即使具有较大的直径，也可应用于作为色散补偿光纤的光纤。 本发明涉及一种通过对准夹具将玻璃棒固定在玻璃管（或连接到端部的虚拟管）内的拉入式塌陷过程。 通过对准夹具的固定在一端或两端制成，对准夹具具有圆柱形形状，具有或不具有一个或多个减小直径的部分。 当固定在一端时，优选地从相对端进行加热和积分处理。 通过使用具有折射率分布的玻璃棒和玻璃管，可以实现复杂的轮廓。

公开(公告)号：US06564585B2

公开(公告)日：2003-05-20

申请号：US09851126

申请日：2001-05-09

Applicant: Jun Abe ,  Seiki Ejima ,  Akira J. Ikushima ,  Takumi Fujiwara

Inventor： Jun Abe ,  Seiki Ejima ,  Akira J. Ikushima ,  Takumi Fujiwara

IPC: C03C2100

CPC classification number: C03C23/009 ,  C03B19/1453 ,  C03B2201/21 ,  C03B2201/23 ,  C03B2201/31 ,  C03B2203/26 ,  C03C3/06 ,  C03C23/002 ,  C03C23/007 ,  C03C23/0095 ,  C03C2201/21 ,  C03C2201/23 ,  C03C2201/31 ,  C03C2203/54 ,  G02F1/3555 ,  G02F1/3558

Abstract: There is disclosed second-order nonlinear glass material wherein a part having second-order nonlinearity contains Ge, H and OH and has second-order nonlinear optical constant d of 1 pm/V or more, and a method for producing second-order nonlinear glass material comprising treating a porous glass material containing Ge with hydrogen, sintering it and subjecting it to a ultraviolet poling treatment. There can be provided second-order nonlinear glass material having second-order nonlinearity which is a sufficiently high and has a sufficiently long lifetime for a practical purpose, in use of the glass material for optical functional elements or the like.

Abstract translation: 公开了二阶非线性玻璃材料，其中具有二阶非线性的部分包含Ge，H和OH，并且具有1pm / V以上的二次非线性光学常数d，以及二阶非线性玻璃的制造方法 包括用氢处理含有Ge的多孔玻璃材料，烧结并对其进行紫外线处理。 在使用光学功能元件等的玻璃材料时，可以提供具有二次非线性的二阶非线性玻璃材料，该二次非线性度足够高并且在实际应用中具有足够长的使用寿命。

公开(公告)号：US20030086667A1

公开(公告)日：2003-05-08

申请号：US09996632

申请日：2001-11-28

Inventor： George E. Berkey ,  Daiping Ma ,  Snigdharaj K. Mishra

IPC: G02B006/16

CPC classification number: G02B6/02266 ,  C03B2201/02 ,  C03B2201/31 ,  C03B2203/24 ,  C03B2203/36 ,  C03C13/045 ,  C03C25/1065 ,  G02B6/02019 ,  G02B6/02285 ,  G02B6/02395 ,  G02B6/0281 ,  G02B6/03611

Abstract: An optical waveguide fiber having a relatively large effective area which exhibits low attenuation, low PMD and low microbending sensitivity. A step-index refractive index profile is advantageously used.

Abstract translation: 具有相对较大有效面积的光波导光纤，其具有低衰减，低PMD和低微弯灵敏度。 有利地使用阶梯折射率折射率分布。

公开(公告)号：US20030068129A1

公开(公告)日：2003-04-10

申请号：US10263944

申请日：2002-10-03

Inventor： Venkata A. Bhagavatula ,  Nicholas F. Borrelli ,  Monica K. Davis ,  Edward F. Murphy

IPC: G02B006/34

CPC classification number: G02B6/29307 ,  C03B19/02 ,  C03B32/00 ,  C03B2201/21 ,  C03B2201/31 ,  C03C3/064 ,  C03C3/091 ,  C03C4/04 ,  C03C4/085 ,  C03C17/3411 ,  C03C23/00 ,  G02B6/12007 ,  G02B6/124 ,  G02B6/125 ,  G02B6/2931 ,  G02B6/29311 ,  G02B6/29319 ,  G02B6/29328 ,  G02B6/29329 ,  G02B2006/12147

Abstract: The present invention provides photonic devices utilized in optical telecommunications. The photonic devices include photosensitive bulk glass bodies which contain Bragg gratings, particularly with the ultraviolet photosensitive bulk glass bodies directing optical telecommunications wavelength range bands. Preferably the ultraviolet photosensitive bulk glass bodies are batch meltable alkali boro-alumino-silicate bulk glass bodies. The invention includes an optical communications wavelength device for use with wavelength range bands, with the device comprising an input optical waveguide collimator for collimating an input light beam out of an optical waveguide to provide an unguided input light beam including at least one reflective wavelength range band nullR and at least one wavelengths range band nulln; an internal bulk Bragg grating including a transparent photosensitive bulk optical grating medium with an internal modulated refractive index grating with a grating pattern for reflecting the at least one wavelength range band nullR; at least one output coupler for outputting an at least one output wavelength range band; and a substrate structure for securing said bulk Bragg grating relative to the input collimator and the output coupler, with the bulk Bragg grating disposed in the unguided input light beam wherein the at least one wavelengths range band nulln is transmitted through the bulk Bragg grating and the at least one wavelength range band nullR is reflected by the bulk Bragg grating.

Abstract translation: 本发明提供了在光通信中使用的光子器件。 光子器件包括含有布拉格光栅的感光体玻璃体，特别是引导光通信波长范围带的紫外感光体玻璃体。 优选地，紫外线感光体玻璃体是可分批熔融的碱金属硼铝硅酸盐块状玻璃体。 本发明包括用于波长范围带的光通信波长装置，该装置包括用于将输入光束准直到光波导中的输入光波导准直器，以提供包括至少一个反射波长范围带的非导向输入光束 λR和至少一个波长范围波兰兰丹; 内部体积布拉格光栅，其包括具有内部调制折射率光栅的透明感光体光栅介质，其具有用于反射所述至少一个波长范围波段λR的光栅图案; 至少一个输出耦合器，用于输出至少一个输出波长范围带; 以及用于相对于输入准直器和输出耦合器固定所述体布拉格光栅的衬底结构，其中布拉格光栅布置在非导向输入光束中，其中至少一个波长范围带兰波丹通过体布拉格光栅传输，并且 至少一个波长范围波段λR被体布拉格光栅反射。

公开(公告)号：US06542683B1

公开(公告)日：2003-04-01

申请号：US09462739

申请日：2000-01-13

Applicant: Alan Frank Evans ,  Carlton Maurice Truesdale

Inventor： Alan Frank Evans ,  Carlton Maurice Truesdale

IPC: G02B622

CPC classification number: G02B6/03694 ,  C03B37/027 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/36 ,  C03B2205/40 ,  C03C13/046 ,  G02B6/03661 ,  G02B6/03688

Abstract: Suppression of stimulated Brillouin scattering (SBS) by broadening the energy spectrum of participating SBS photons and/or phonons is achieved in an optical fiber having a core with both radially nonuniform viscosity and CTE profiles provided by alternating layers of glass modifying dopants such as phosphorous and fluorine. The nonuniform thermal expansion and viscosity profiles impart a residual, permanent, nonuniform stress in the fiber. The SBS suppressing effect provided by the nonuniform stress can be controlled and enhanced by applying a uniform or nonuniform tensile force to the fiber as it is being drawn. A preform for the fiber is also disclosed.

Abstract translation: 通过扩展参与的SBS光子和/或声子的能谱来抑制受激布里渊散射（SBS），在具有径向不均匀粘度和CTE曲线的核心的光纤中实现，该曲线由玻璃修饰掺杂剂如磷和 氟。 不均匀的热膨胀和粘度特性在纤维中赋予残余的，永久的，不均匀的应力。 通过在拉伸时对纤维施加均匀或不均匀的拉伸力，可以控制和增强由不均匀应力提供的SBS抑制效果。 还公开了一种用于纤维的预制件。

公开(公告)号：US06535677B1

公开(公告)日：2003-03-18

申请号：US09668347

申请日：2000-09-25

Applicant: Shigeru Tanaka ,  Masayuki Nishimura ,  Shinji Ishikawa ,  Eisuke Sasaoka ,  Takatoshi Kato

Inventor： Shigeru Tanaka ,  Masayuki Nishimura ,  Shinji Ishikawa ,  Eisuke Sasaoka ,  Takatoshi Kato

IPC: G02B602

CPC classification number: G02B6/02242 ,  C03B37/0253 ,  C03B37/027 ,  C03B37/02745 ,  C03B37/032 ,  C03B2201/31 ,  C03B2203/19 ,  C03B2203/22 ,  C03B2203/36 ,  C03B2205/06 ,  C03B2205/40 ,  C03B2205/72 ,  C03C25/1062 ,  C03C25/223 ,  G02B6/02247 ,  G02B6/02257 ,  G02B6/02271 ,  G02B6/03627 ,  G02B6/03633 ,  G02B6/03644 ,  G02B6/0365 ,  G02B6/03666 ,  G02B6/29377

Abstract: The present invention relates to a dispersion-managed optical fiber which can be manufactured easily and has a structure which enables the easy connection thereof with other optical fiber and the like. The dispersion-managed optical fiber is a silica-based optical fiber ensuring its single mode at a predetermined wavelength within a signal wavelength band, in which first portions each having a positive chromatic dispersion and second portions each having a negative chromatic dispersion are arranged alternately and adjacent to each other. In the dispersion-managed optical fiber, the dopant concentration is made uniform in the longitudinal direction and, corresponding to the above-mentioned first and second portions, the refractive index of a glass layer not doped with GeO2 as a dopant is adjusted or the residual stresses in glass layers are changed.

Abstract translation: 本发明涉及一种易于制造的色散管理光纤，并且具有能够容易地与其他光纤等连接的结构。 色散管理光纤是一种二氧化硅基光纤，其确保在信号波长带内的预定波长的单模，其中每个具有正色散的第一部分和每个具有负色散的第二部分交替排列， 相邻。 在色散管理的光纤中，掺杂剂浓度在纵向上均匀，并且对应于上述第一和第二部分，调整未掺杂有GeO 2作为掺杂剂的玻璃层的折射率或残余物 玻璃层的应力发生变化。

公开(公告)号：US20030029204A1

公开(公告)日：2003-02-13

申请号：US09465016

申请日：1999-12-16

Inventor： GIACOMO STEFANO ROBA, MONZA ,  MARCO ARIMONDI ,  DONATA PICCOLO ,  SABRINA FOGLIANI, SEGRATE

IPC: C03B037/018 ,  C03B037/016

CPC classification number: B01J19/26 ,  B01J19/0013 ,  B01J2219/00135 ,  B01J2219/00252 ,  C03B37/01413 ,  C03B37/0142 ,  C03B2201/31 ,  C03B2207/34 ,  C03B2207/36 ,  C03B2207/46 ,  C03B2207/62 ,  C03B2207/64 ,  C03B2207/85

Abstract: The present invention relates to a method and apparatus for fabricating a glass preform used in the manufacture of optical waveguides. The method utilizes a gas phase hydrolysis of a silica precursor without using a carrier gas. The flow of the reactants in the reaction chamber is confined and deposited on the target preform by careful control of the thermal profile in the system.

Abstract translation: 本发明涉及用于制造光波导的玻璃预制件的制造方法和装置。 该方法利用二氧化硅前体的气相水解而不使用载气。 通过仔细控制系统中的热分布，反应室中反应物的流动被限制并沉积在目标预制件上。

公开(公告)号：US20020197038A1

公开(公告)日：2002-12-26

申请号：US10217812

申请日：2002-08-12

Inventor： John S. Abbott III ,  Douglas E. Harshbarger

IPC: G02B006/18 ,  G02B006/16

CPC classification number: G02B6/0288 ,  C03B37/01413 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/26 ,  C03B2203/31 ,  C03B2203/36 ,  G02B6/02 ,  G02B6/02214 ,  Y02P40/57

Abstract: A multimode optical fiber having a first laser bandwidth greater than 220 MHz.km in the 850 nm window, a second laser bandwidth greater than 500 MHz.km in the 1300 nm window, a first OFL bandwidth of at least 160 MHz.km in the 850 nm window, and a second OFL bandwidth of at least 500 MHz.km in the 1300 nm window is disclosed. The multimode fiber is capable of operating in telecommunication systems employing both LED power sources and high power laser sources. Methods of making and testing the multimode optical fiber are also disclosed.

公开(公告)号：US06477305B1

公开(公告)日：2002-11-05

申请号：US09547598

申请日：2000-04-11

Applicant: George E. Berkey ,  Dana C. Bookbinder ,  Richard M. Fiacco ,  Cynthia B. Giroux ,  Daniel W. Hawtof ,  Dale R. Powers ,  V. Srikant

Inventor： George E. Berkey ,  Dana C. Bookbinder ,  Richard M. Fiacco ,  Cynthia B. Giroux ,  Daniel W. Hawtof ,  Dale R. Powers ,  V. Srikant

IPC: G02B602

CPC classification number: C03B37/01486 ,  C03B37/0124 ,  C03B37/01446 ,  C03B37/01473 ,  C03B2201/04 ,  C03B2201/075 ,  C03B2201/22 ,  C03B2201/31 ,  C03C3/06 ,  C03C13/047 ,  C03C2201/22 ,  C03C2203/54 ,  G02B6/02

Abstract: A cylindrical glass body having a low water content centerline region and method of manufacturing such a cylindrical glass body for use in the manufacture of optical waveguide fiber is disclosed. The centerline region of the cylindrical glass body has a water content sufficiently low such that an optical waveguide fiber made from the cylindrical glass body of the present invention exhibits an optical attenuation of less than about 0.35 dB/km, and preferably less than about 0.31 dB/km at a measured wavelength of 1380 nm. A low water content plug used in the manufacture of such a cylindrical glass body, an optical waveguide fiber having a low water peak, and an optical fiber communication system incorporating such an optical waveguide fiber is also disclosed.

Abstract translation: 公开了一种具有低含水率中心线区域的圆柱形玻璃体及其制造用于制造光波导纤维的圆柱形玻璃体的方法。 圆柱形玻璃体的中心线区域的水含量足够低，使得由本发明的圆柱形玻璃体制成的光波导纤维的光衰减小于约0.35dB / km，优选小于约0.31dB / km，测量波长为1380 nm。 还公开了用于制造这种圆柱形玻璃体的低含水量塞子，具有低水峰的光波导纤维和包含这种光波导纤维的光纤通信系统。

公开(公告)号：US20020139151A1

公开(公告)日：2002-10-03

申请号：US09821474

申请日：2001-03-30

Inventor： Monica K. Davis ,  Gang Qi

IPC: G02B006/18

CPC classification number: C03B37/027 ,  C03B37/01869 ,  C03B2201/10 ,  C03B2201/31 ,  C03B2205/40 ,  G02B6/02114

Abstract: The present invention includes a method of making a preform for an enhanced photosensitive fiber comprising depositing successive layers of optical material the inside a tube using modified chemical vapor deposition, and collapsing the layers of optical material in a reducing atmosphere with a positive pressure. The present invention also includes a method of making an enhanced photosensitive fiber comprising making a preform using modified chemical vapor deposition wherein the preform is collapsed in a reducing atmosphere with a positive pressure and drawing the preform into a fiber.

Abstract translation: 本发明包括一种制备用于增强感光纤维的预成型体的方法，包括使用改进的化学气相沉积在管内部沉积连续的光学材料层，并在正压下还原气氛中折叠光学材料层。 本发明还包括一种制备增强感光纤维的方法，其包括使用改进的化学气相沉积法制备预成型体，其中预成型件在正压的还原气氛中塌陷并将预成型件拉伸成纤维。