公开(公告)号：WO0058707A3

公开(公告)日：2001-01-18

申请号：PCT/US0005949

申请日：2000-03-07

Applicant: CORNING INC

Inventor： ALLEN DAVID W ,  EVANS ALAN F ,  RACKI JEROME G

IPC: G01M11/02 ,  G01M11/00

CPC classification number: G01M11/336

Abstract: A system for measuring polarization mode dispersion (PMD) in a fiber using a polarizer controlling the polarization state of light input to the fiber and a polarization analyzer measuring the polarization state of light output from the fiber. Jones matrix analysis is applied to data derived from three input polarization states and two wavelenghts of probing radiation. Performance is improved by using incoherent light sources such as light emitting diodes in conjunction with two bandpass filters. However, a laser source and optical detector are used to align the fiber. The system is particularly useful in measuring PMD values in short lengths of fiber and mapping those values with a long fiber from which the test fiber was cut. Preferably, the PMD is measured for various values of twist experimentally induced in the test fiber, and the short-length PMD value is that associated with zero-internal twist in the fiber as calculated according to a model. The fiber may also be loaded during measurement.

Abstract translation: 一种用于使用控制光纤输入的光的偏振状态的偏振光源的偏振模式测量光纤中的偏振模色散（PMD）的系统以及测量从光纤输出的光的偏振状态的偏振分析仪。 Jones矩阵分析应用于从三个输入极化状态和两个探测辐射波长导出的数据。 通过使用非相干光源（如发光二极管和两个带通滤光片）来提高性能。 然而，使用激光源和光学检测器来对准光纤。 该系统在测量短纤维中的PMD值方面特别有用，并将这些值与测试纤维切割的长纤维进行比较。 测量在测试纤维中实验诱导的各种扭转值的PMD，并且短长度PMD值与根据模型计算的纤维零内部扭曲相关联。 在测量过程中也可以加载光纤。

公开(公告)号：WO0235270A9

公开(公告)日：2003-05-08

申请号：PCT/US0131673

申请日：2001-10-09

Applicant: CORNING INC

Inventor： EVANS ALAN F

IPC: G02B6/34 ,  H04B10/2507 ,  G02B6/26 ,  G02B6/42

CPC classification number: G02B6/29376 ,  G02B6/29347 ,  H04B10/25077

Abstract: Disclosed is a dispersion compensating optical regenerator that provides for enhanced performance of telecommunication systems employing varying soliton signal propagation and dispersion compensation. Allowing the solitons to change in amplitude, width and shape while traversing the dispersion compensating optical regenerator provides for beneficial system performance including improved signal to noise ratio at the receiver, reduced impact of signal interactions, and longer regenerator spacing. The regenerator in accord with the invention comprises a first optical waveguide fiber (4) having positive dispersion, a coupler (6), negative total dispersion fiber (2) and an optical signal polarization controller (8). The regenerator further includes an optical amplifier (10), which is asymmetrically located along the loop fiber (2). The regenerator in accord with the invention combines the filtering features of a NOLM or NALM with the advantageous effects of dispersion compensation.

Abstract translation: 公开了一种色散补偿光学再生器，其提供采用变化的孤子信号传播和色散补偿的电信系统的增强的性能。 允许孤子在振幅，宽度和形状上改变，同时穿过色散补偿光学再生器提供有益的系统性能，包括改善接收机的信噪比，降低信号相互作用的影响，以及更长的再生器间隔。 根据本发明的再生器包括具有正色散的第一光纤（4），耦合器（6），负总色散光纤（2）和光信号偏振控制器（8）。 再生器还包括光学放大器（10），其沿着环形光纤（2）非对称地定位。 根据本发明的再生器将NOLM或NALM的滤波特征与色散补偿的有利效果相结合。

公开(公告)号：WO0232820A3

公开(公告)日：2003-03-27

申请号：PCT/US0142255

申请日：2001-09-21

Applicant: CORNING INC

Inventor： BERKEY GEORGE E ,  BOOKBINDER DANA C ,  EVANS ALAN F ,  HAWTOF DANIEL W ,  LOTZ JOHN M

IPC: C03B37/012 ,  C03B37/025 ,  C03B37/027 ,  C03C25/00 ,  C03C25/62 ,  G02B6/34 ,  G02B6/16 ,  H04B10/18

CPC classification number: G02B6/02247 ,  C03B37/01225 ,  C03B37/01228 ,  C03B37/0124 ,  C03B37/0253 ,  C03B37/02718 ,  C03B37/15 ,  C03B2203/06 ,  C03B2203/18 ,  C03B2203/19 ,  C03B2203/36 ,  C03B2205/20 ,  C03B2205/40 ,  C03B2205/56 ,  C03C25/002 ,  C03C25/6208 ,  G02B6/02066 ,  G02B6/29376

Abstract: An improved telecommunications link is provided which includes a dispersion managed fiber with smoothly varying dispersion. The dispersion map may vary sinusoidally or as a sawtooth, for example. The smoothly varying dispersion works well for high data rate transmissions in a return to zero signal format. The dispersion managed fiber with smoothly varying dispersion may be formed by a wide variety of techniques. A method of forming dispersion managed fiber by localized heating or cooling is also provided.

Abstract translation: 提供了一种改进的电信链路，其包括具有平滑变化的色散的色散管理光纤。 例如，色散图可以正弦变化或锯齿变化。 平滑变化的色散在返回零信号格式的高数据速率传输中工作良好。 可以通过多种技术形成具有平滑变化的色散的色散管理光纤。 还提供了通过局部加热或冷却形成分散管理纤维的方法。

公开(公告)号：WO0033114A3

公开(公告)日：2000-11-16

申请号：PCT/US9926686

申请日：1999-11-10

Applicant: CORNING INC

Inventor： BERKEY GEORGE E ,  EVANS ALAN F ,  SRIKANT V

IPC: G02B6/02 ,  G02B6/036 ,  G02B6/34 ,  G02B6/16

CPC classification number: G02B6/02028 ,  G02B6/02009 ,  G02B6/02242 ,  G02B6/02271 ,  G02B6/0286 ,  G02B6/03627 ,  G02B6/03644 ,  G02B6/03666 ,  G02B6/29377

Abstract: A pulse-reshaping optical fiber having a core with refractive index nc surrounded by a cladding layer, the diameter of the core changing monotonically along the length of the fiber. The core includes a central region having a maximum refractive index n1 and a moat region disposed radially adjacent to the central region. The moat region has a minimum refractive index n2 which is sufficiently low that the index delta DELTA 2 of the moat region with respect to nc is not greater than 0.1 %. The moat region affects the change in dispersion with respect to fiber cladding diameter, as well as providing the pulse-reshaping fiber with low dispersion versus wavelength slope. The pulse-reshaping fiber is particularly useful in association with optical transmission systems where high transmission rates and narrow pulse widths are desired, including components such as high pulse rate wavelentgh-division-multiplexers (WDMs) and optical regenerators.

Abstract translation: 一种脉冲整形光纤，其具有被包层围绕的折射率为nc的纤芯，纤芯的直径沿纤维的长度单调地变化。 芯包括具有最大折射率n1的中心区域和径向邻近中心区域设置的壕沟区域。 壕沟区域具有最小折射率n2，其足够低，使得壕沟区域相对于nc的折射率ΔΔ2不大于0.1％。 壕沟区域影响相对于光纤包层直径的色散变化，以及为脉冲再成型光纤提供低色散对波长斜率。 脉冲整形光纤特别适用于需要高传输速率和窄脉冲宽度的光传输系统，包括诸如高脉冲波长分波多路复用器（WDM）和光再生器之类的组件。

公开(公告)号：WO2004001917A3

公开(公告)日：2004-11-18

申请号：PCT/US0319244

申请日：2003-06-17

Applicant: CORNING INC

Inventor： EVANS ALAN F ,  GRAY STUART ,  WILDEMAN GEORGE

IPC: H01S3/067 ,  H01S3/23 ,  H01S3/30 ,  H01S3/00

CPC classification number: H01S3/302 ,  H01S3/06758 ,  H01S3/2375 ,  H01S2301/04

Abstract: An optical link comprises a first optical amplifier (101) having a first gain spectrum with a first gain ripple and a second optical amplifier (102) having a second gain spectrum with a second gain ripple. A combined gain spectrum of the first and second gain spectra is substantially flat and has a gain ripple that is substantially less than either the first gain ripple or the second gain ripple over a particular wavelength range.

Abstract translation: 光学链路包括具有第一增益波动的第一增益光谱的第一光放大器（101）和具有第二增益波动的第二增益谱的第二光放大器（102）。 第一和第二增益光谱的组合增益谱基本上是平坦的，并且具有明显小于特定波长范围上的第一增益波动或第二增益波动的增益波动。

公开(公告)号：WO0221735A3

公开(公告)日：2002-10-03

申请号：PCT/US0127438

申请日：2001-09-05

Applicant: CORNING INC

Inventor： EVANS ALAN F ,  GAVRILOVIC PAUL ,  RIFFEL RICHARD W

IPC: G02F1/35 ,  H01S3/10 ,  H01S3/30 ,  H04B10/16 ,  H04B10/17

CPC classification number: H04B10/2916

Abstract: An optical fiber amplifier system includes an optical fiber adapted for use as an optical wave guide amplifier, and at least one optical pump optically coupled into the optical amplifier, wherein the pump receives both a DC electrical input and an AC electrical input, and wherein the pump provides an optical pump power to the optical fiber having both a DC optical power component and an AC optical power component. The optical fiber amplifier system also includes and optical pump power detector optically coupled to the pump, and at least one controller operatively connected to the pump power detector to determine the DC optical power component of the optical pump power, and wherein the controller adjusts the DC electrical input to the pump based on the DC optical power component.

Abstract translation: 一种光纤放大器系统包括适于用作光学波导放大器的光纤以及光耦合到光学放大器中的至少一个光泵，其中泵接收DC电输入和AC电输入两者，并且其中， 泵向具有DC光功率组件和AC光功率组件的光纤提供光泵浦功率。 光纤放大器系统还包括光耦合到泵的光泵功率检测器，以及可操作地连接到泵功率检测器以确定光泵功率的DC光功率分量的至少一个控制器，并且其中控制器调整DC 基于DC光功率组件的泵的电输入。