公开(公告)号：EP1133083A3

公开(公告)日：2004-10-20

申请号：EP01301720.7

申请日：2001-02-26

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Erdogan, Turan ,  Strasser, Thomas Andrew ,  Westbrook, Paul Stephen

IPC: H04B10/135

CPC classification number: H04B10/2572

Abstract: Polarization monitoring and control in a lightwave communication system is achieved by using an in-line polarimeter in conjunction with a polarization controller. The devices are readily compact, accurate and therefore capable of implementation in a variety of system applications. In one embodiment, a polarimeter and controller can be coupled together by a feedback loop between the polarimeter output and the controller input to provide "active polarization control" (APC).

公开(公告)号：EP1030414B1

公开(公告)日：2003-01-22

申请号：EP00300983.4

申请日：2000-02-09

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Espindola, Rolando Patricio ,  Strasser, Thomas Andrew ,  Westbrook, Paul Stephen ,  Wysocki, Paul Francis

IPC: H01S3/067

CPC classification number: H01S3/06754 ,  H01S3/0675 ,  H01S3/06758 ,  H01S2301/04

公开(公告)号：EP1160594A1

公开(公告)日：2001-12-05

申请号：EP00310987.3

申请日：2000-12-08

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Strasser, Thomas Andrew ,  Westbrook, Paul Stephen

IPC: G02B6/16

CPC classification number: G02B6/02195 ,  G02B6/02085 ,  G02B6/02119 ,  G02B6/03694

Abstract: A refractive index grating according to this invention is a tilted grating in a single mode optical waveguide, with a photosensitivity profile that includes at least one "tuning region" in the waveguide core (41). Appropriate choice of the photosensitivity profile, e.g. an annular tuning region (51) with low concentration of photosensitizing species, can result in a "supernull" in the LP 01.f to LP 01.b coupling. That is to say, the angular range of the tilt angle θ over which the core mode coupling is essentially zero (i.e., 20dB) and bandwidth (>20nm). A method of trimming a grating is also disclosed.

Abstract translation: 根据本发明的折射率光栅是单模光波导中的倾斜光栅，具有包括波导芯（41）中的至少一个“调谐区域”的光敏度分布。 适当选择光敏度分布，例如 具有低浓度光敏物质的环形调谐区域（51）可以导致LP01.f到LP01.b耦合中的“超载”。 也就是说，倾斜角度的角度范围; 与在波导中没有“调谐区域”而获得的角度范围相比，核心模式耦合基本上为零（即，<-30dB）可以显着增加到大于0.1°，甚至0.2或0.5° 核心。 增加的角度范围提供了光栅的改进的可制造性。 在优选实施例中，光栅具有大的包层（42）损耗（> 20dB）和带宽（> 20nm）。 还公开了一种修整光栅的方法。

公开(公告)号：EP1024391A1

公开(公告)日：2000-08-02

申请号：EP00300358.9

申请日：2000-01-19

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Adams, Laura Ellen ,  Eggleton, Benjamin John ,  Espindola, Rolando Patricio ,  Jin, Sungho ,  Mavoori, Hareesh ,  Rogers, John A. ,  Strasser, Thomas Andrew

IPC: G02F1/01 ,  G02B6/293 ,  H01S3/067 ,  H04J14/02

CPC classification number: H04B10/2519 ,  G02B6/022 ,  G02B6/02204 ,  G02B6/2932 ,  G02B6/29394 ,  G02B6/29395 ,  G02F1/011 ,  G02F1/0115 ,  G02F1/0131 ,  G02F1/0134 ,  G02F1/0147 ,  G02F2201/307 ,  H01S3/10023

Abstract: A method for making a chirped grating device (10) capable of a broad bandwith for optical communication systems is disclosed. An intrinsically-chirped optical grating (12) is externally strained to alter the range of chirping. The external strain may be induced by a gradient-generating body (14) bonded onto the length of the fiber grating that may be latchably strained so that the grating characteristics may be changed or tuned while avoiding use of a continuous power supply. Various optical networking applications using such dispersion compensating devices are also disclosed.
The gradient may comprise a temperature gradient, a strain gradient (e.g., mechanically or magnetically-induced), or any other gradient capable of imposing an external perturbation on the fiber.

Abstract translation: 一种用于制造变周期光栅装置（10），其能够用于光学通信系统的宽的带宽的方法，游离缺失盘。 一个本质啁啾光栅（12）在外部应变以改变线性调频的范围内。 外部应变可以通过结合到光纤光栅的长度的梯度源体（14）被诱导并可以latchably应变所以也光栅特性可以改变，或者，同时避免使用连续供电的调谐。 使用色散补偿装置的各种光网络应用进行测试，以便游离缺失光盘。 梯度可以包括温度梯度，应变梯度（E. G.机械或磁性感应），或能够强加在纤维外部扰动的任何其他梯度。

公开(公告)号：EP0989438A1

公开(公告)日：2000-03-29

申请号：EP99307298.2

申请日：1999-09-14

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Adams, Laura Ellen ,  Espindola, Rolando Patricio ,  Jin, Sungho ,  Mavoori, Hareesh ,  Strasser, Thomas Andrew

IPC: G02F1/01 ,  G02B6/16

CPC classification number: G02B6/022 ,  G02F1/0134 ,  G02F2201/307

Abstract: A programmable and latchable device for wavelength shifting and chromatic dispersion compensating is disclosed. An optical grating (12) such as a Bragg grating, a nonchirped grating, or a linearly or non-linearly chirped grating, is magnetostrictively strained to alter the dispersion compensator characteristics. In a preferred embodiment, a gradient magnetostrictive body is bonded along its length to the fiber grating. In yet another preferred embodiment, a magnetostrictive body (14) is bonded onto the length of the fiber grating, and a gradient generating, programmable and latchable magnet component (15) is placed adjacent the magnetostrictive body. The body is then latchably strained to a desired level by controlling the extent of magnetization in the magnetostrictive material and the magnet so as to induce or enhance chirping characteristics in the grating. Various optical applications using such are disclosed.

Abstract translation: 公开了一种用于波长偏移和色散补偿的可编程和可锁定装置。 诸如布拉格光栅，非激光光栅或线性或非线性啁啾光栅的光栅（12）被磁致伸缩应变以改变色散补偿器特性。 在优选实施例中，梯度磁致伸缩体沿其长度被结合到光纤光栅。 在另一优选实施例中，磁致伸缩体（14）被接合到光纤光栅的长度上，梯度产生可编程和可锁定的磁体部件（15）放置在与磁致伸缩体相邻的位置。 然后，通过控制磁致伸缩材料和磁体中的磁化程度，使主体可锁定地变形到所需的水平，以便引起或增强光栅中的啁啾特性。 公开了使用这些的各种光学应用。

公开(公告)号：EP1024376B1

公开(公告)日：2007-11-14

申请号：EP00300379.5

申请日：2000-01-19

Applicant: Lucent Technologies Inc.

Inventor： Adams, Laura Ellen ,  Eggleton, Benjamin John ,  Espindola, Rolando Patricio ,  Jin, Sungho ,  Mavoori, Hareesh ,  Rogers, John A. ,  Strasser, Thomas Andrew

IPC: G02B6/10 ,  G02B6/34 ,  G02B5/18 ,  G02F1/01

CPC classification number: G02B6/2932 ,  G02B6/022 ,  G02B6/02204 ,  G02B6/29322 ,  G02B6/29374 ,  G02B6/29394 ,  G02B6/29395 ,  G02B6/29398 ,  G02F1/0128 ,  G02F1/0134 ,  G02F2201/307 ,  H04B10/2519

公开(公告)号：EP1030472A3

公开(公告)日：2004-04-14

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.

公开(公告)号：EP1130704A3

公开(公告)日：2003-10-29

申请号：EP01301417.0

申请日：2001-02-19

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Ackerman, David Alan ,  Bacher, Kenneth L. ,  Dautremont-Smith, William Crossley ,  Du, Mei ,  Rottwitt, Karsten ,  Stentz, Andrew John ,  Strasser, Thomas Andrew ,  Zhang, Liming

IPC: H01S3/30 ,  H04B10/17

CPC classification number: H04B10/2916 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/09408 ,  H01S3/094096 ,  H01S3/302 ,  H01S5/1096 ,  H01S2301/03

Abstract: A fiber Raman amplifier is configured to use a co-propagating Raman pump source, which may be beneficial in a variety of system configurations (for example, in bidirectional communication systems). By carefully configuring the pump source characteristics, sufficient optical gain can be achieved in the co-propagating arrangement, the characteristics including: (1) using an optical pump power of at least 50mW, (2) having a relatively large spectral bandwidth within the pump (to suppress SBS); and (3) a frequency difference between all longitudinal pump modes of each pump laser being separated by at least the walk-off frequency between the pump laser frequency and the signal frequency, and all intense longitudinal modes between different pump lasers being separated by at least the electrical bandwidth of the communication system.

公开(公告)号：EP1024376A1

公开(公告)日：2000-08-02

申请号：EP00300379.5

申请日：2000-01-19

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Adams, Laura Ellen ,  Eggleton, Benjamin John ,  Espindola, Rolando Patricio ,  Jin, Sungho ,  Mavoori, Hareesh ,  Rogers, John A. ,  Strasser, Thomas Andrew

IPC: G02B6/16 ,  G02B6/34 ,  G02B5/18 ,  G02F1/01

CPC classification number: G02B6/2932 ,  G02B6/022 ,  G02B6/02204 ,  G02B6/29322 ,  G02B6/29374 ,  G02B6/29394 ,  G02B6/29395 ,  G02B6/29398 ,  G02F1/0128 ,  G02F1/0134 ,  G02F2201/307 ,  H04B10/2519

Abstract: A tunable chromatic dispersion compensator for optical communication systems is disclosed. An optical grating, such as a fiber Bragg grating, non-chirped, linearly chirped or non-linearly chirped, is coated on its outer surface with a coating have a variable diameter and strained is applied to the fiber. The fiber may be latchably strained so that the grating characteristics may be changed or tuned while avoiding use of a continuous power supply. Various optical networking applications using such dispersion compensating devices are also disclosed.

Abstract translation: 公开了一种用于光通信系统的可调谐色散补偿器。 光纤光栅，例如光纤布拉格光栅，非线性啁啾线性啁啾或非线性啁啾光纤，其外表面涂覆有可变直径并且应变应用于光纤。 光纤可以可闩锁地变形，使得可以改变或调整光栅特性，同时避免使用连续的电源。 还公开了使用这种色散补偿装置的各种光网络应用。

公开(公告)号：EP1003253A2

公开(公告)日：2000-05-24

申请号：EP99308905.1

申请日：1999-11-09

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Espindola, Rolando Patricio ,  Strasser, Thomas Andrew ,  Wagener, Jefferson Lynn ,  Wysocki, Paul Francis

IPC: H01S3/067

CPC classification number: H04B10/2941 ,  H01S3/06758 ,  H01S3/10023 ,  H01S2301/04

Abstract: In accordance with the invention, a temperature-dependent rare earth doped waveguide optical amplifier is compensated by a temperature-dependent loss filter. The filter characteristics are designed to be temperature-dependent filters so that the gain characteristic of the amplifier is compensated over a practical operating temperature range. In essence, the amplifier comprises a length of optical waveguide for transmitting optical signals, a rare earth doped amplifying region in the waveguide for amplifying the transmitted optical signals, a pumping source for optically pumping the amplifying region, and a temperature-dependent loss filter. A typical design compensates an EFDA to a variation of less than 1 dB over a temperature range of -40°C to 85°C and a spectral range of at least 20 nm.

Abstract translation: 根据本发明，温度依赖性稀土掺杂波导光放大器由温度依赖性损耗滤波器补偿。 滤波器特性被设计为温度依赖滤波器，使得在实际工作温度范围内补偿放大器的增益特性。 本质上，放大器包括用于传输光信号的光波导长度，用于放大透射光信号的波导中的稀土掺杂放大区域，用于光泵浦放大区域的泵浦源和温度依赖损耗滤波器。 典型的设计在-40℃至85℃的温度范围和至少20nm的光谱范围内将EFDA补偿为小于1dB的变化。