公开(公告)号：US06810184B2

公开(公告)日：2004-10-26

申请号：US10042976

申请日：2002-01-09

申请人： Bolesh J. Skutnik

发明人： Bolesh J. Skutnik

IPC分类号： G02B616

CPC分类号： G02B6/02066 ,  A61B2018/2261 ,  A61N5/0601 ,  A61N5/062 ,  C03B37/016 ,  C03C13/046 ,  C03C25/1061 ,  C03C25/12 ,  G02B6/0008 ,  G02B6/02 ,  G02B6/241 ,  G02B6/262

摘要： The present invention provides improved diffusion tips for optical fibers and methods of making the same. Nanoporous silica clad optical fibers are used to make fibers having integrally formed diffusion tips and diffusion tips that can be fused to other fibers. The disclosed diffusers can be fabricated to be cylindrical with light diffusing along its length, spherical with light radiating outwardly in a spherical pattern, or custom shaped to illuminate irregular surfaces or volumes. Gradient and step index properties can also be achieved. Several fabrication methods to achieve the desired effects are described. The problems in the prior art methods associated with epoxy, such as curing, bond strength, embrittlement, power handling limitations, and refractive index matching are avoided.

摘要翻译： 本发明提供了改进的光纤扩散尖端及其制造方法。 纳米多孔二氧化硅包层光纤用于制造具有一体形成的扩散尖端和可与其它纤维熔合的扩散尖端的纤维。 所公开的扩散器可以被制造为圆柱形，其光沿着其长度扩散，球形具有以球形图案向外辐射的光，或定制成照射不规则表面或体积。 也可以实现梯度和阶跃折射率特性。 描述了实现期望效果的几种制造方法。 避免了与环氧树脂相关的现有技术方法中的问题，例如固化，粘合强度，脆化，功率处理限制和折射率匹配。

公开(公告)号：US06768848B2

公开(公告)日：2004-07-27

申请号：US10108467

申请日：2002-03-29

申请人： Naomi Kumano

发明人： Naomi Kumano

IPC分类号： G02B616

CPC分类号： G02B6/02014 ,  G02B6/02242 ,  G02B6/02271 ,  G02B6/0281 ,  G02B6/03644 ,  G02B6/03688

摘要： The present invention provides an optical fiber forming an optical transmission line for wavelength division multiplexing transmission in a 1.5 &mgr;m wavelength band, for example. The cutoff wavelength is set in the range of 1.3 &mgr;m or more to 1.4 &mgr;m or less, and the chromatic dispersion value at a wavelength of 1.55 &mgr;m is set to 4 to 10 ps/nm/km. The effective core area in at least a setup wavelength band of the 1.5 &mgr;m wavelength band is set to 40 &mgr;m2 to 60 &mgr;m2, and the dispersion slope in the 1.55 &mgr;m wavelength band is set to a positive value below 0.035 ps/nm2/km. The zero dispersion wavelength is set to 1.43 &mgr;m or less, and the bending loss at the diameter of 20 mm in the 1.5 &mgr;m wavelength band is set to 5 dB/m or less. The refractive index profile of the optical fiber is designed so that the relative refractive index difference &Dgr;1 of a first glass layer (1) of the innermost layer from a standard layer (6) and the relative refractive index difference &Dgr;3 of a third glass layer (3) at a third-layer position from the innermost from the standard layer (6) are set to positive values, and the relative refractive index difference &Dgr;2 of a second glass layer (2) at a second-layer position from the innermost from the standard layer (6) is set to a negative value.

摘要翻译： 本发明提供了例如在1.5μm波长带中形成用于波分复用传输的光传输线的光纤。 截止波长设定在1.3μm以上至1.4μm以下的范围，波长1.55μm的色散值设定为4〜10ps / nm / km。 在1.5μm波长带的至少一个建立波长带中的有效核心区域被设置为40mum 2至60mum 2，并且1.55μm波长带中的色散斜率被设置为低于0.035的正值 ps / nm 2 / km。 将零色散波长设定为1.43μm以下，将1.5μm波长带的直径为20mm的弯曲损耗设定为5dB / m以下。 光纤的折射率分布被设计成使得最内层的第一玻璃层（1）与标准层（6）的相对折射率差Δ1和第三玻璃层的相对折射率差Δ3 在距离标准层（6）的最内侧的第三层位置处的第三层位置的距离设定为正值，并且第二层玻璃层（2）的距离最内侧的第二层位置处的相对折射率差Δ2 标准层（6）设定为负值。

公开(公告)号：US06701050B1

公开(公告)日：2004-03-02

申请号：US09974717

申请日：2001-10-10

申请人： Michael Chertkov ,  Ildar Gabitov

发明人： Michael Chertkov ,  Ildar Gabitov

IPC分类号： G02B616

CPC分类号： H04B10/2525 ,  G02B6/29376

摘要： The present invention provides methods and optical fibers for periodically pinning an actual (random) accumulated chromatic dispersion of an optical fiber to a predicted accumulated dispersion of the fiber through relatively simple modifications of fiber-optic manufacturing methods or retrofitting of existing fibers. If the pinning occurs with sufficient frequency (at a distance less than or are equal to a correlation scale), pulse degradation resulting from random chromatic dispersion is minimized. Alternatively, pinning may occur quasi-periodically, i.e., the pinning distance is distributed between approximately zero and approximately two to three times the correlation scale.

摘要翻译： 本发明提供了用于通过光纤制造方法的相对简单的修改或现有光纤的改装来将光纤的实际（随机）累积色散周期性固定到预测的纤维累积色散的方法和光纤。 如果钉扎以足够的频率（小于或等于相关标尺的距离）发生，则由随机色散引起的脉冲劣化最小化。 或者，钉扎可以准周期性地发生，即，钉扎距离分布在相关标尺的大约零到大约两到三倍之间。

公开(公告)号：US06631232B1

公开(公告)日：2003-10-07

申请号：US10180991

申请日：2002-06-26

申请人： Nawfel Azami

发明人： Nawfel Azami

IPC分类号： G02B616

CPC分类号： G02B6/29352 ,  G02B6/02 ,  G02B6/02185 ,  G02B6/2821

摘要： A method of adjusting thermal dependence of an optical fiber involves hydrogenating the fiber to render it photosensitive, and then exposing it to UV radiation for such time period as to achieve the desired adjustment in the thermal dependence. In an all-fiber Mach-Zehnder interferometer, the method involves using a photosensitive fiber as one of the arms of the interferometer and exposing this photosensitive fiber to UV radiation so as to adjust the thermal dependence of the interferometer. The resulting interferometer is also part of the invention.

摘要翻译： 调整光纤的热依赖性的方法包括使光纤加氢以使其感光，然后将其暴露于UV辐射这样的时间段，以实现热依赖性的所需调节。 在全光纤马赫策德尔干涉仪中，该方法包括使用感光纤维作为干涉仪的臂之一，并将该感光纤维暴露于紫外线辐射，以调节干涉仪的热依赖性。 所得到的干涉仪也是本发明的一部分。

公开(公告)号：US06574404B2

公开(公告)日：2003-06-03

申请号：US09771937

申请日：2001-01-30

申请人： Eisuke Sasaoka ,  Masao Tsukitani ,  Shigeru Tanaka

发明人： Eisuke Sasaoka ,  Masao Tsukitani ,  Shigeru Tanaka

IPC分类号： G02B616

CPC分类号： H04B10/25133 ,  H04J14/02

摘要： The present invention is related to a chromatic dispersion compensating module which realizes signal transmission at a high bit rate by its simple constitution, and an optical transmission system comprising the same. The chromatic dispersion compensating module according to the present invention comprises a chromatic dispersion compensator which compensates for the chromatic dispersion of an optical fiber transmission line at a predetermined wavelength, and a temperature controller which controls the temperature of the chromatic dispersion compensator in such a manner to set the chromatic dispersion of the chromatic dispersion compensator at a desired value. By this constitution, the dispersion compensation control in correspondence with the chromatic dispersion fluctuation in the optical fiber transmission line caused by the temperature fluctuation and the like is made possible. Hence, the cumulative chromatic dispersion as viewed from the entire optical fiber transmission line can be effectively reduced by its simple constitution.

摘要翻译： 本发明涉及一种通过其简单结构实现高比特率的信号传输的色散补偿模块和包括该色散补偿模块的光传输系统。 根据本发明的色散补偿模块包括补偿预定波长的光纤传输线的色散的色散补偿器，以及以这种方式控制色散补偿器的温度的温度控制器， 将色散补偿器的色散设定在期望值。 通过这种结构，可以实现与由温度波动等引起的光纤传输线中的色散波动相对应的色散补偿控制。 因此，通过简单的结构可以有效地降低从整个光纤传输线观察的累积色散。

公开(公告)号：US06549702B2

公开(公告)日：2003-04-15

申请号：US10234810

申请日：2002-09-04

申请人： Mohammed N. Islam ,  George A. Nowak ,  Jaeyoun Kim

发明人： Mohammed N. Islam ,  George A. Nowak ,  Jaeyoun Kim

IPC分类号： G02B616

CPC分类号： G02B6/29376 ,  G02B6/274 ,  G02B6/2766 ,  G02F1/3513 ,  H04B10/25077 ,  H04B10/506

摘要： A method and system are disclosed for generating a broadband spectral continuum using short spans of constant-dispersion, dispersion-shifted fibers. The continuum generation results from the combined effects of pulse compression and spectral shaping. Pulse compression is achieved through soliton-effect compression in one or more stages of anomalous dispersion fiber, which lengths are determined by the occurrence of the first optimal compression of the corresponding order of soliton. The spectral shape results from 3rd order dispersion effects on the evolution of the pulse shape as it propagates through the final segment(s) of the fiber span. The pulse area of the incident pulse determines the fiber properties required to optimize compression. The sign and magnitudes of the 2nd and 3rd order dispersions in the final span(s) as well as the pulse width at the input to the final span determine the continuum extent, flatness and symmetry. The continuum generated in this manner is coherent and stable, making it an attractive alternative as a spectrally-sliced source for short pulse, multiple wavelength channels.

公开(公告)号：US06526213B1

公开(公告)日：2003-02-25

申请号：US09313594

申请日：1999-05-18

申请人： Casmir Stanislaus Ilenda ,  Brian Francis Leonard ,  Michael Thomas Caro

发明人： Casmir Stanislaus Ilenda ,  Brian Francis Leonard ,  Michael Thomas Caro

IPC分类号： G02B616

CPC分类号： G02B6/02033 ,  B29C47/00 ,  B29C47/0023 ,  C08K5/0041 ,  G02B1/046 ,  G02B6/0001 ,  Y10S385/901 ,  C08L33/08

摘要： The present invention provides polymeric material compositions having excellent white light transmission that is substantially free of color over long light path lengths. This invention also provides polymeric material compositions that provide for the transmission of light having a controlled color when illuminated with a white light source.

摘要翻译： 本发明提供了具有优异的白光透射率的聚合材料组合物，其在长的光程长度上基本上不含色。 本发明还提供了当用白色光源照射时提供具有受控颜色的光的透射的聚合物材料组合物。

公开(公告)号：US06526207B2

公开(公告)日：2003-02-25

申请号：US09728062

申请日：2000-12-04

申请人： Erik Miersch

发明人： Erik Miersch

IPC分类号： G02B616

CPC分类号： H02G3/0487 ,  H01R43/005 ,  H02G3/088 ,  Y10T428/1352

摘要： A cable assembly includes a sleeve body of plastic material; a protective tube extending in the sleeve body; a cable element disposed within the protective tube; and a transverse port provided in the wall of the protective tube. The plastic material extends through the transverse port into the protective tube and cross-sectionally seals the protective tube water tight in a region of the transverse port.

公开(公告)号：US06473549B1

公开(公告)日：2002-10-29

申请号：US09424491

申请日：2000-06-13

申请人： Nam-Kyoo Park ,  Ju-Han Lee

发明人： Nam-Kyoo Park ,  Ju-Han Lee

IPC分类号： G02B616

CPC分类号： H04B10/2912 ,  H01S3/0675 ,  H01S3/10023 ,  H01S2301/04 ,  H04B10/291 ,  H04B10/2941 ,  H04B2210/003

摘要： A multi-stage optical amplifier for use in the transmission of optical signals over fiber when using Wavelength Division Multiplexing. Wavelength Division Multiplexing is particularly sensitive to differences in gain between channels and these differences become critical when cascaded fiber amplifiers are used to boost the signal over long distances. The present amplifier flattens the differences in gain and reduces noise figure by using multi-stage equalizing filters along the length of the transmission fiber.

摘要翻译： 一种多级光放大器，用于在使用波分复用技术时通过光纤传输光信号。 波分复用对通道之间的增益差异特别敏感，当使用级联光纤放大器来长距离提升信号时，这些差异变得至关重要。 本放大器通过使用沿着传输光纤的长度的多级均衡滤波器来平衡增益的差异并降低噪声系数。

公开(公告)号：US06453101B1

公开(公告)日：2002-09-17

申请号：US09555683

申请日：2000-06-02

申请人： Jean-Claude Rousseau ,  Marianne Paillot

发明人： Jean-Claude Rousseau ,  Marianne Paillot

IPC分类号： G02B616

CPC分类号： G02B6/02009 ,  G02B6/02271 ,  G02B6/03627

摘要： The invention relates to a dispersion-shifted optical fiber comprising a core and cladding, with an index profile of shape consisting of a rectangular central portion surrounded by an annular portion of index lower than the index of the cladding, and then by the cladding, with a zero chromatic dispersion at a wavelength value &lgr;0 lying in the range 1380 nm to 1450 nm, and with chromatic dispersion at 1550 nm lying in the range 8 ps/nm·km to 12 ps/nm·km. The invention also relates to the use of such an optical fiber in a wavelength division multiplexed system.

摘要翻译： 本发明涉及一种包括芯和包层的色散位移光纤，其折射率分布形状由矩形中心部分组成，该矩形中心部分由折射率低于包层的折射率的环形部分围绕，然后由包层， 位于1380nm至1450nm范围内的波长值lambd0处的零色散，并且在1550nm处的色散位于8ps / nm.km至12ps / nm.km的范围内。 本发明还涉及在波分复用系统中使用这种光纤。