公开(公告)号：EP0972752B1

公开(公告)日：2002-03-06

申请号：EP99305360.2

申请日：1999-07-06

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Glodis, Paul Francis ,  Gridley, Charles Francis ,  Jablonowski, Donald Paul ,  Kalish, David ,  Walker, Kenneth Lee

IPC: C03B37/018 ,  C03B37/012

CPC classification number: C03B37/01211 ,  C03B37/01869 ,  C03B37/01884 ,  C03B37/01892 ,  C03B2201/02 ,  C03B2201/04 ,  C03B2201/075 ,  C03B2203/24

公开(公告)号：EP0877477A3

公开(公告)日：2001-02-14

申请号：EP98303325.9

申请日：1998-04-28

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Walker, Kenneth Lee ,  Willems, Frederick Willem

IPC: H03F1/32 ,  H04B10/207

CPC classification number: H04B10/505 ,  H03F1/32 ,  H04B10/564

Abstract: In one embodiment, an optical transmitter (40), which has a modulator (44) disposed between an pair of optical amplifiers (45, 46), exhibits reduced carrier-to-noise ratio and relatively high powers. In another embodiment, an optical amplifier (45) is disposed between the laser carrier source (42) and the modulator (44), but the post-modulator amplifier (46) is omitted. Application of the transmitters to analog systems (e.g., CATV) and digital systems is described.

Abstract translation: 在一个实施例中，具有设置在一对光放大器（45,46）之间的调制器（44）的光发射器（40）表现出降低的载波噪声比和相对高的功率。 在另一个实施例中，光放大器（45）设置在激光载波源（42）和调制器（44）之间，但是后调制放大器（46）被省略。 描述了发射机对模拟系统（例如CATV）和数字系统的应用。

公开(公告)号：EP0938172A2

公开(公告)日：1999-08-25

申请号：EP99301144.4

申请日：1999-02-16

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： LeGrange, Jane Deborah ,  Walker, Kenneth Lee ,  Reed, William Alfred

IPC: H01S3/30

CPC classification number: H04B10/2916 ,  H01S3/0675 ,  H01S3/08086 ,  H01S3/302

Abstract: The performance of optical fiber Raman devices can be increased by substitution of a broadband reflector (typically a multilayer dielectric mirror) for some of the narrowband reflectors (typically fiber Bragg gratings) that are conventionally used to define the optical cavities of the device. The device exemplarily is a Raman laser or amplifier, and in preferred embodiments a broadband reflector reflects all the Stokesshifted wavelengths, such that the cavities are defined by the single broadband reflector and by a multiplicity of appropriately selected narrowband reflectors. Optionally the broadband reflector also serves to reflect the pump radiation.

Abstract translation: 通过用常规用于限定器件的光学腔的一些窄带反射器（通常是光纤布拉格光栅）代替宽带反射器（通常为多层电介质镜）可以增加光纤拉曼器件的性能。 该装置示例性地是拉曼激光器或放大器，并且在优选实施例中，宽带反射器反射所有Stokesshifted波长，使得空腔由单个宽带反射器和多个适当选择的窄带反射器限定。 可选地，宽带反射器还用于反映泵辐射。

公开(公告)号：EP0899243A1

公开(公告)日：1999-03-03

申请号：EP98306556.6

申请日：1998-08-18

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Glodis, Paul Francis ,  Walker, Kenneth Lee

IPC: C03B37/027 ,  C03B37/018

CPC classification number: C03B37/027 ,  C03B37/018 ,  C03B2205/42 ,  Y02P40/57

Abstract: Fiber is drawn from a glass preform having a diameter of about 60 mm or greater, formed from an MCVD process, such that the glass passes through the neck-down region at a rate of about 20 g/min or greater. The invention reflects the finding that glass of a large diameter preform should be passed through the neck-down region at a relatively fast rate that reduces the extent of oxygen diffusion. Reducing such oxygen diffusion, it is believed, substantially maintains transition metal impurity atoms in their most oxidized valence state, and thereby reduces the impurities' detrimental effect on losses. Using the process of the invention, it is possible to obtain commercially desirable losses, e.g., 0.23 dB/km or less at 1550 nm, from large diameter preforms capable of producing over 200 km of 125 µm diameter fiber.

Abstract translation: 纤维从由MCVD工艺形成的具有约60mm或更大直径的玻璃预制件拉制，使得玻璃以约20g / min或更高的速率通过颈缩区域。 本发明反映了这样一个发现：大直径预成型件的玻璃应以相对较快的速率通过颈缩区域，这降低了氧气扩散的程度。 据信，减少这种氧扩散，基本上保持过渡金属杂质原子处于最高氧化价态，从而减少杂质对损耗的不利影响。 使用本发明的方法，可以从能够生产超过200公里的125μm直径的纤维的大直径预成型件获得商业上所需的损耗，例如在1550nm为0.23dB / km或更小。

公开(公告)号：EP0829741A3

公开(公告)日：1998-04-29

申请号：EP97306781.2

申请日：1997-09-02

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Strasser, Thomas A. ,  Walker, Kenneth Lee ,  Vengsarkar, Ashish Madhukar

IPC: G02B6/34 ,  H04J14/04

CPC classification number: G02B6/29319 ,  G02B6/14 ,  G02B6/29383

Abstract: The optical waveguide system (100) comprises a mode discriminating coupler (10) and reflective mode coupling means (e.g., 34 and 35). These components can be combined in a variety of ways to perform a variety of functions. Among them are drop multiplex devices (30), add multiplex devices (60), add/drop multiplex devices (70), and power combiners. The device combinations can have low loss as well as high reliability, the latter due to the robust structure of the devices.

Abstract translation: 光波导系统（100）包括模式识别耦合器（10）和反射模式耦合装置（例如34和35）。 这些组件可以以各种方式组合以执行各种功能。 其中包括分出多路复用设备（30），添加多路复用设备（60），分插复用设备（70）和功率合成器。 器件组合可以具有低损耗和高可靠性，后者由于器件的坚固结构。

公开(公告)号：EP1030472A2

公开(公告)日：2000-08-23

申请号：EP00300991.7

申请日：2000-02-09

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Eggleton, Benjamin John ,  Nielsen, Torben N. ,  Rogers, John A. ,  Strasser, Thomas Andrew ,  Walker, Kenneth Lee

IPC: H04B10/18

CPC classification number: H04B10/2519 ,  H04B2210/252

Abstract: In accordance with the invention, an optical communication system is provided with one or more automatic dispersion compensation modules. Each module has an adjustable dispersion element, a data integrity monitor and a feedback network whereby the monitor adjusts the dispersion element to optimize system performance. In a preferred embodiment the dispersion compensating modules comprise chirped fiber Bragg gratings in which the chirp is induced in the grating by passing a current along distributed thin film heaters deposited along the length of the fiber. The magnitude of the applied current determines the dispersion of the grating. A data integrity monitor is configured to sense the integrity of transmitted data and to provide electrical feedback for controlling the current applied to the grating.

Abstract translation: 根据本发明，光通信系统设置有一个或多个自动色散补偿模块。 每个模块都具有可调色散元件，数据完整性监视器和反馈网络，由此监视器调整色散元件以优化系统性能。 在优选实施例中，色散补偿模块包括啁啾光纤布拉格光栅，其中通过沿沿着光纤的长度沉积的分布式薄膜加热器传递电流而在光栅中感应啁啾。 施加电流的大小决定了光栅的色散。 数据完整性监视器被配置为感测发射数据的完整性，并提供用于控制施加到光栅的电流的电反馈。

公开(公告)号：EP0972752A1

公开(公告)日：2000-01-19

申请号：EP99305360.2

申请日：1999-07-06

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Glodis, Paul Francis ,  Gridley, Charles Francis ,  Jablonowski, Donald Paul ,  Kalish, David ,  Walker, Kenneth Lee

IPC: C03B37/018 ,  C03B37/012

CPC classification number: C03B37/01211 ,  C03B37/01869 ,  C03B37/01884 ,  C03B37/01892 ,  C03B2201/02 ,  C03B2201/04 ,  C03B2201/075 ,  C03B2203/24

Abstract: A large optical preform [303] is made by a modified chemical vapor deposition (MCVD) process by depositing successive layers of core and cladding materials onto the inside surface of a rotating glass tube [33] having a hydroxyl ion (OH - ) level that is less than 0.5 parts per million (ppm) by weight. The tube is then collapsed inwardly to form a core rod [301] in which the deposited core material [31] has a diameter that is greater than about 5 millimeters and the deposited cladding material [32] has an outside diameter that is less than about 15 millimeters. Optionally a machine-vision system [140,150,160] monitors and controls the diameter of the glass tube by regulating the pressure within the tube; moreover, the machine-vision system monitors and controls the straightness of the tube by varying its rotational speed according to angular position. After the core rod [301] is formed, it may be plasma etched to remove contaminants, it is overclad with two glass jackets [34,35] having a hydroxyl ion (OH - ) level that is less than 1.0 ppm by weight thereby creating a large preform [303] from which about 400 kilometers of singlemode optical fiber can be drawn per meter of length of preform.

Abstract translation: 通过改进的化学气相沉积（MCVD）工艺，通过将连续的芯和包层材料层沉积到具有较小的羟基离子（OH - ））水平的旋转玻璃管Ä33的内表面上来制造大型光学预制件 超过百万分之0.5（ppm）重量。 管然后向内折叠以形成芯棒Ä301Ü，其中沉积的芯材Ä31Ü具有大于约5毫米的直径，并且沉积的包层材料Ä32具有小于约15毫米的外径。 可选地，机器视觉系统Ä140,150,160Ü通过调节管内的压力来监视和控制玻璃管的直径; 此外，机器视觉系统通过根据角位置改变其转速来监视和控制管的直线度。 在形成芯棒Ä301Ü之后，可以等离子体蚀刻以除去污染物，它被两个玻璃外套Ä34,35Ü包覆，其中羟基离子（OH - ）的含量低于1.0重量ppm，从而产生大的 预制件Ä303Ü，每米长度的预制件可以从其中吸取约400公里的单模光纤。

公开(公告)号：EP0903876A1

公开(公告)日：1999-03-24

申请号：EP98306552.5

申请日：1998-08-18

Applicant: LUCENT TECHNOLOGIES INC. ,  Tyco Submarine Systems Ltd.

Inventor： Kidorf, Howard David ,  Walker, Kenneth Lee

IPC: H04B10/17

CPC classification number: H04B10/2916 ,  G03F7/0045 ,  G03F7/0392 ,  H04B2210/003

Abstract: The disclosed optical fiber communication system (10) comprises a remotely pumped erbium-doped fiber amplifier (EDFA 24). The pump radiation is de-tuned with respect to wavelength, the wavelength being selected longer than both the optimal wavelengths for pumping the EDFA and for producing Raman gain in the transmission fiber (23), respectively. Such de-tuning results in improved over-all system performance through reduced multi-path interference. Exemplarily, the pump radiation has wavelength in the range 1490-1510 nm.

Abstract translation: 盘游离缺失光纤通信系统（10）包括一个远程泵浦的掺铒光纤放大器（EDFA 24）。 泵浦辐射被去调谐相对于波长，被选择的波长比两个用于泵送EDFA和喇曼增益，分别制造在所述传输光纤（23）的最佳波长更长。 搜寻失谐的结果通过减少多径干扰改进过的所有系统的性能。 示例性地，泵辐射具有波长范围为1490年至1510年纳米。

公开(公告)号：EP1022870B1

公开(公告)日：2009-04-29

申请号：EP00300212.8

申请日：2000-01-13

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Stenz, Andrew John ,  Walker, Kenneth Lee

IPC: H01S3/30 ,  H04B10/17

CPC classification number: H04B10/2916 ,  H01S3/094073 ,  H01S3/094096 ,  H01S3/302

公开(公告)号：EP0965569B1

公开(公告)日：2005-08-31

申请号：EP99304078.1

申请日：1999-05-26

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Marszalek, Stanley F. ,  Nelson, Katherine Theresa ,  Walker, Kenneth Lee ,  Womack, Kim Willard ,  Yan, Man Fei

IPC: C03B37/018

CPC classification number: C03B37/01815