公开(公告)号：US20020150335A1

公开(公告)日：2002-10-17

申请号：US10081733

申请日：2002-02-22

Applicant: Teraxion Inc.

Inventor： Richard L. Lachance ,  Andre Vovan

IPC: G02B006/34 ,  G02B006/00

CPC classification number: G02B6/0218 ,  G02B6/022 ,  G02B6/29317 ,  G02B6/29322 ,  G02B6/29398

Abstract: A fine-tuning assembly for an optical grating in an optical fiber is provided. The fiber is mounted under tension in a hollow structure which has a sliding member longitudinally slideable therein. The fiber is attached to both the sliding member and hollow structure. A slanted passage is provided in the sliding member, forming a small angle with the transversal, and a wedge member is slideably inserted in this passage. To fine-tune the spectral response of the grating, the wedge member is transversally displaced without any longitudinal displacement, preferably by the action of screws, thereby pushing on its walls to longitudinally slide the sliding member and adjust the tension in the fiber.

Abstract translation: 提供了一种用于光纤中的光栅的微调组件。 纤维在张力下安装在中空结构中，该中空结构具有可在其中纵向滑动的滑动构件。 纤维连接到滑动构件和中空结构。 在滑动构件中设置有倾斜通道，与横向形成小角度，并且楔形构件可滑动地插入该通道中。 为了微调光栅的光谱响应，楔形元件优选地通过螺丝的作用而横向移位，而不是任何纵向位移，从而推动其壁上以纵向滑动滑动构件并调节光纤中的张力。

公开(公告)号：US20020141700A1

公开(公告)日：2002-10-03

申请号：US09952715

申请日：2001-09-12

Applicant: Teraxion Inc.

Inventor： Richard L. Lachance ,  Andre Vo Van ,  Michel Morin ,  Martin Guy ,  Martin Pelletier

IPC: G02B006/34 ,  G02B006/00

CPC classification number: G02B6/0218 ,  G02B6/022 ,  G02B6/29317 ,  G02B6/29322 ,  G02B6/29398

Abstract: An athermally packaged optical fiber device, such as a Bragg grating, is provided. The device includes a hollow structure, and a free and a threaded member projecting in the hollow structure from both ends. The optical fiber is mounted in tension inside the hollow structure through longitudinal fiber-receiving bores in both members, and has an anchor point affixed to each member with the grating therebetween. The anchor point of the threaded member is provided outside of the hollow structure, making the device more compact. The free and threaded members are rotatable together to adjust the resonant wavelength of the grating, and a nut may be provided to allow a fine-tuning. The hollow structure, free member and threaded member have a coefficient of thermal expansion selected so that they together compensate for the temperature dependency of the Bragg wavelength.

Abstract translation: 提供了诸如布拉格光栅之类的非热封封的光纤器件。 该装置包括中空结构，以及从两端突出到中空结构中的自由螺纹构件。 光纤通过两个构件中的纵向光纤接收孔安装在中空结构内部的张力中，并且具有固定到每个构件的锚点，其间具有光栅。 螺纹构件的固定点设置在中空结构的外侧，使得该装置更紧凑。 自由和螺纹构件可以一起旋转以调节光栅的谐振波长，并且可以提供螺母以允许微调。 中空结构，自由构件和螺纹构件具有选择的热膨胀系数，使得它们一起补偿布拉格波长的温度依赖性。

公开(公告)号：US20040017972A1

公开(公告)日：2004-01-29

申请号：US10390590

申请日：2003-03-17

Applicant: Teraxion Inc.

Inventor： Sylviane Lelievre ,  Richard L. Lachance ,  Yves Painchaud

IPC: G02B006/34 ,  G02B006/26

CPC classification number: G02B6/2932 ,  G02B6/02195 ,  G02B6/29394 ,  G02B6/29395 ,  G06F17/30864 ,  H04B10/2519

Abstract: A tunable dispersion compensator for the compensation of the chromatic dispersion experienced by a single-channel or multi-channel light signal. The compensator includes a plurality of optical structures such as chirped Bragg gratings or combinations thereof, each having a characteristic dispersion profile. An optical coupling arrangement successively propagates the light signal in each of these structures, so that it accumulates the dispersion compensation effect of each. A tuning device jointly tunes the dispersion profile of each optical structure by applying a same tuning force thereto, preferably a temperature gradient.

Abstract translation: 用于补偿单通道或多通道光信号所经受的色散的可调色散补偿器。 补偿器包括多个光学结构，例如啁啾布拉格光栅或其组合，每个具有特征色散轮廓。 光耦合装置依次传播这些结构中的每一个中的光信号，从而累积每个结构的色散补偿效果。 调谐装置通过向其施加相同的调谐力，优选温度梯度来共同调谐每个光学结构的色散轮廓。

公开(公告)号：US20030198434A1

公开(公告)日：2003-10-23

申请号：US10360548

申请日：2003-02-06

Applicant: TERAXION INC.

Inventor： Richard L. Lachance ,  Philippe Pepin ,  Tristan Ruthers ,  Francois Pelletier

IPC: G02B006/34

CPC classification number: G02F1/0115 ,  G02B6/02085 ,  G02B6/02204 ,  G02B6/02209 ,  G02F1/0147 ,  G02F2201/307

Abstract: The present invention discloses practical and power efficient assemblies for applying a temperature gradient to a fiber Bragg grating. An application of such assemblies is, for example, the active tuning of the chromatic dispersion of the grating. The temperature gradient is produced in a heat conductive element, with which the FBG is in continuous thermal contact, by elements controlling the temperature of the ends of the heat conductive element, thereby applying the temperature gradient to the FBG. A first preferred embodiment includes a heat recirculation member allowing the recirculation of heat between the two ends of the heat conductive elongated element, thereby providing a rapid and dynamical tuning of the temperature gradient with a minimal heat loss. A second embodiment provides isolation from the surrounding environment in order to decouple the desired temperature gradient from ambient temperature fluctuations, thereby improving the control of the optical response of a fiber grating.

Abstract translation: 本发明公开了一种用于向光纤布拉格光栅施加温度梯度的实用和功率有效的组件。 这种组件的应用是例如光栅的色散的主动调谐。 通过控制导热元件端部温度的元件，通过FBG与FBG连续热接触的导热元件产生温度梯度，从而将温度梯度应用于FBG。 第一优选实施例包括热再循环构件，其允许在导热细长元件的两端之间再循环热，从而以最小的热损失提供温度梯度的快速和动态调谐。 第二实施例提供与周围环境的隔离，以便将期望的温度梯度与环境温度波动分离，由此改善光纤光栅的光响应的控制。