公开(公告)号：US08600601B2

公开(公告)日：2013-12-03

申请号：US13130035

申请日：2009-12-02

Applicant: William James Kellar ,  Damien Dusha ,  Stuart Gray ,  Peter James Roberts

Inventor： William James Kellar ,  Damien Dusha ,  Stuart Gray ,  Peter James Roberts

IPC: G01C22/00 ,  G05D1/00

CPC classification number: G01S19/42 ,  G01S19/426

Abstract: A positioning method that calculates a lower accuracy positioning solution and applies an offset to the lower accuracy positioning solution to form a final positioning solution if a higher accuracy positioning solution is unavailable. The offset represents a difference between the lower accuracy positioning solution and the higher accuracy positioning solution at a point in time when the higher accuracy positioning solution was last available.

Abstract translation: 一种定位方法，用于计算较低精度定位解，并将偏移应用于较低精度定位解，以便在较高精度定位解不可用的情况下形成最终定位解。 偏移量表示在最高可用度的高精度定位解决方案的时间点上的较低精度定位方案和较高精度定位解决方案之间的差异。

公开(公告)号：US20090060435A1

公开(公告)日：2009-03-05

申请号：US12221015

申请日：2008-07-30

Applicant: Xin Chen ,  Stuart Gray ,  Ming-Jun Li ,  Donnell Thaddeus Walton ,  Ji Wang ,  Luis Alberto Zenteno

Inventor： Xin Chen ,  Stuart Gray ,  Ming-Jun Li ,  Donnell Thaddeus Walton ,  Ji Wang ,  Luis Alberto Zenteno

IPC: G02B6/02

CPC classification number: G02B6/024

Abstract: An optical fiber, comprising: (i) a core, (ii) a cladding surrounding the core, (iii) at least one stress member adjacent the fiber core and situated within the cladding, said stress member comprising silica co-doped with B and F.

Abstract translation: 一种光纤，包括：（i）芯，（ii）围绕所述芯的包层，（iii）至少一个与所述纤维芯相邻并且位于所述包层内的应力构件，所述应力构件包括与B和/ F。

公开(公告)号：US06870999B2

公开(公告)日：2005-03-22

申请号：US10926717

申请日：2004-08-25

Applicant: Douglas C. Allan ,  John T. Brown ,  Lisa C. Chacon ,  Adam J. G. Ellison ,  James C. Fajardo ,  Stuart Gray ,  Keith L. House ,  Karl W. Koch, III ,  Dale R. Powers ,  James A. West

Inventor： Douglas C. Allan ,  John T. Brown ,  Lisa C. Chacon ,  Adam J. G. Ellison ,  James C. Fajardo ,  Stuart Gray ,  Keith L. House ,  Karl W. Koch, III ,  Dale R. Powers ,  James A. West

IPC: G02B6/00 ,  C03B37/014 ,  C03B37/018 ,  C03C13/04 ,  G02B6/02 ,  G02B6/036 ,  G02F1/35

CPC classification number: C03C13/045 ,  C03B37/01413 ,  C03B37/01446 ,  C03B37/01807 ,  C03B37/01823 ,  C03B37/01853 ,  C03B2201/20 ,  C03B2201/22 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2207/30 ,  C03B2207/36 ,  C03C4/0042 ,  C03C13/046 ,  G02B6/02 ,  G02B6/02228 ,  G02B6/02271 ,  G02B6/03644 ,  G02B6/03677 ,  G02B6/03694

Abstract: An isotopically-altered, silica based optical fiber is provided having lower losses, broader bandwidth, and broader Raman gain spectrum characteristics than conventional silica-based fiber. A heavier, less naturally abundant isotope of silicon or oxygen is substituted for a lighter, more naturally abundant isotope to shift the infrared absorption to a slightly longer wavelength. In one embodiment, oxygen-18 is substituted for the much more naturally abundant oxygen-16 at least in the core region of the fiber. The resulting isotopically-altered fiber has a minimum loss of 0.044 dB/km less than conventional fiber, and a bandwidth that is 17 percent broader for a loss range between 0.044-0.034 dB/km. The fiber may be easily manufactured with conventional fiber manufacturing equipment by way of a plasma chemical vapor deposition technique. When a 50 percent substitution of oxygen -18 for oxygen-16 is made in the core region of the fiber, the Raman gain spectrum is substantially broadened.

Abstract translation: 提供了一种同位素改性的二氧化硅基光纤，其比传统的二氧化硅基光纤具有更低的损耗，更宽的带宽和更广泛的拉曼增益光谱特性。 更重，更不自然丰富的硅或氧的同位素代替较轻的，更自然的丰富的同位素，以将红外吸收转移到稍长的波长。 在一个实施方案中，氧-18至少在纤维的核心区域中替代天然丰富的氧-16。 所得到的同位素改变的光纤比常规光纤的损耗最小为0.044 dB / km，对于0.044-0.034 dB / km之间的损耗范围，宽带宽为17％。 纤维可以通过等离子体化学气相沉积技术容易地用传统的纤维制造设备制造。 当在纤维的核心区域中进行氧-18的氧-16取代为50％时，拉曼增益谱显着扩大。

公开(公告)号：US20050022562A1

公开(公告)日：2005-02-03

申请号：US10926717

申请日：2004-08-25

Applicant: Douglas Allan ,  John Brown ,  Lisa Chacon ,  Adam Ellison ,  James Fajardo ,  Stuart Gray ,  Keith House ,  Karl Koch ,  Dale Powers ,  James West

Inventor： Douglas Allan ,  John Brown ,  Lisa Chacon ,  Adam Ellison ,  James Fajardo ,  Stuart Gray ,  Keith House ,  Karl Koch ,  Dale Powers ,  James West

IPC: G02B6/00 ,  C03B37/014 ,  C03B37/018 ,  C03C13/04 ,  G02B6/02 ,  G02B6/036 ,  G02F1/35

CPC classification number: C03C13/045 ,  C03B37/01413 ,  C03B37/01446 ,  C03B37/01807 ,  C03B37/01823 ,  C03B37/01853 ,  C03B2201/20 ,  C03B2201/22 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2207/30 ,  C03B2207/36 ,  C03C4/0042 ,  C03C13/046 ,  G02B6/02 ,  G02B6/02228 ,  G02B6/02271 ,  G02B6/03644 ,  G02B6/03677 ,  G02B6/03694

Abstract: An isotopically-altered, silica based optical fiber is provided having lower losses, broader bandwidth, and broader Raman gain spectrum characteristics than conventional silica-based fiber. A heavier, less naturally abundant isotope of silicon or oxygen is substituted for a lighter, more naturally abundant isotope to shift the infrared absorption to a slightly longer wavelength. In one embodiment, oxygen-18 is substituted for the much more naturally abundant oxygen-16 at least in the core region of the fiber. The resulting isotopically-altered fiber has a minimum loss of 0.044 dB/km less than conventional fiber, and a bandwidth that is 17 percent broader for a loss range between 0.044-0.034 dB/km. The fiber may be easily manufactured with conventional fiber manufacturing equipment by way of a plasma chemical vapor deposition technique. When a 50 percent substitution of oxygen-18 for oxygen-16 is made in the core region of the fiber, the Raman gain spectrum is substantially broadened.

Abstract translation: 提供了一种同位素改性的二氧化硅基光纤，其比传统的二氧化硅基光纤具有更低的损耗，更宽的带宽和更广泛的拉曼增益光谱特性。 更重，更不自然丰富的硅或氧的同位素代替较轻的，更自然的丰富的同位素，以将红外吸收转移到稍长的波长。 在一个实施方案中，氧-18至少在纤维的核心区域中替代天然丰富的氧-16。 所得到的同位素改变的光纤比常规光纤的损耗最小为0.044 dB / km，对于0.044-0.034 dB / km之间的损耗范围，宽带宽为17％。 纤维可以通过等离子体化学气相沉积技术容易地用传统的纤维制造设备制造。 当在纤维的纤芯区域中进行氧-16取代氧-16的50％时，拉曼增益谱显着扩大。

公开(公告)号：US06744556B2

公开(公告)日：2004-06-01

申请号：US10099530

申请日：2002-03-14

Applicant: Stuart Gray ,  Kim Jepsen ,  Michael Vasilyev

Inventor： Stuart Gray ,  Kim Jepsen ,  Michael Vasilyev

IPC: H01S330

CPC classification number: H04B10/2916 ,  H01S3/302

Abstract: In a distributed Raman amplification system, the pump laser and the fiber are chosen so as to have characteristics which result in broadening of the DRBS. For example, with a transmission fiber through which signal light of a wavelength &lgr;s propagates, and having zero dispersion at a wavelength &lgr;o; a pump laser producing counterpropagating pump light at a wavelength &lgr;p; where &lgr;p and &lgr;s are on opposite sides of the zero dispersion wavelength is used. The transmission fiber may be large effective area fiber. In a Raman amplification system suitable for use in a WDM optical fiber communication system, pump lasers having mode spacing which is less than the optical bandwidth of the signal channel have been found to be advantageous.

Abstract translation: 在分布式拉曼放大系统中，泵浦激光器和光纤被选择为具有导致DRBS变宽的特性。 例如，通过波长λ的信号光传播的传输光纤，并且在波长lambdao处具有零色散; 一个泵浦激光器，产生波长为lambdap的反向传播泵浦光; 其中使用羔羊和羊羔在零色散波长的相对侧。 传输光纤可以是大的有效面积的光纤。 在适用于WDM光纤通信系统的拉曼放大系统中，已经发现具有小于信号通道的光学带宽的模式间隔的泵浦激光器是有利的。

公开(公告)号：US06693740B2

公开(公告)日：2004-02-17

申请号：US10214212

申请日：2002-08-07

Applicant: Stuart Gray ,  George F Wildeman

Inventor： Stuart Gray ,  George F Wildeman

IPC: H04B1018

CPC classification number: H04B10/2916 ,  G02B6/02 ,  G02B6/02242 ,  G02B6/02261 ,  G02B6/02266 ,  G02B6/0228 ,  G02B6/29377 ,  H01S3/06725 ,  H01S3/06758 ,  H01S3/302 ,  H04B10/25253

Abstract: An optical amplifier comprises: (i) an input port for providing optical signal to the amplifier; (ii) an output port for providing amplified optical signal out of the amplifier; (iii) at least two optical fibers, one optical fiber having positive dispersion D1 of greater than 10 ps/nm/km in a 1550 nm to 1620 nm wavelength range, the other fiber having negative dispersion D2 of less than −5 ps/nm/km in a 1550 nm to 1620 nm wavelength range, wherein the length of each of said optical fiber is chosen to provide the amplifier with a predetermined amount of dispersion.

Abstract translation: 光放大器包括：（i）用于向放大器提供光信号的输入端口; （ii）用于从放大器提供放大的光信号的输出端口; （iii）至少两根光纤，在1550nm至1620nm的波长范围内具有大于10ps / nm / km的正色散D1的一根光纤，另一种具有小于-5ps / nm的负色散D2的光纤 在1550nm至1620nm波长范围内的/ km，其中选择每个所述光纤的长度以向放大器提供预定量的色散。