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：US20030161580A1

公开(公告)日：2003-08-28

申请号：US10351583

申请日：2003-01-24

Applicant: TERAXION INC.

Inventor： Michel Morin ,  Yves Painchaud ,  Sylviane Lelievre ,  Richard Lachance

IPC: G02B006/34 ,  G02B006/26

CPC classification number: G02B6/02085 ,  G02B6/02204 ,  G02B6/29319 ,  G02B6/2932 ,  G02B6/29394 ,  G02B6/29395 ,  H04B10/2519

Abstract: A dispersion compensator for the compensation of chromatic dispersion in a multi-channel light signal is provided. The compensator includes a pair of optical structures each having a waveguide and a Bragg grating provided therein. The Bragg grating has a plurality of grating components, each associated with one or a few of the channels to be compensated. An optical assembly propagates the light signal sequentially through both optical structures. The periods of the grating components are selected to allow compensation of chromatic dispersion experienced by this particular channel or these particular channels, thereby taking into account the dispersion slope of the light signal. Tuning means are also provided in order to adjust the dispersion of the grating components of each optical structures, and proper selection of the tuning parameters allows tuning independently both the dispersion and dispersion slope.

Abstract translation: 提供了用于补偿多通道光信号中色散的色散补偿器。 补偿器包括一对光学结构，每个光学结构具有波导和设置在其中的布拉格光栅。 布拉格光栅具有多个光栅分量，每个光栅分量与要补偿的一个或几个通道相关联。 光学组件顺序地通过两个光学结构传播光信号。 选择光栅分量的周期以允许补偿由该特定通道或这些特定通道经历的色散，从而考虑到光信号的色散斜率。 还提供了调谐装置，以便调整每个光学结构的光栅分量的色散，并且调整参数的适当选择允许独立地调节色散和色散斜率。

公开(公告)号：US20040037505A1

公开(公告)日：2004-02-26

申请号：US10601065

申请日：2003-06-20

Applicant: Teraxion Inc.

Inventor： Michel Morin

IPC: G02B006/34

CPC classification number: G02B6/29317 ,  G02B6/02085 ,  G02B6/29356 ,  G02B6/29394 ,  H04B10/2519

Abstract: All fiber construction Gires-Tournois interferometers for chromatic dispersion compensation of an optical signal are provided. The interferometers are made of overlapping chirped fiber Bragg gratings having a wide band reflectivity response. In one embodiment, a plurality of FBG interferometers can be cascaded for providing the chromatic dispersion compensation. In another embodiment, an FBG dispersion compensator provided with a pair of multi-cavity FBG interferometers is also provided. The dispersion compensator is provided with two temperature controlling means, each being operationally connected to one of the multi-cavity interferometer for thermo-optically shifting a spectral response thereof, thereby providing a tunable dispersion compensator capable of compensating for all orders of dispersion.

Abstract translation: 提供所有光纤结构用于光信号色散补偿的Gires-Tournois干涉仪。 干涉仪由具有宽带反射率响应的重叠啁啾光纤布拉格光栅制成。 在一个实施例中，可以级联多个FBG干涉仪以提供色散补偿。 在另一个实施例中，还提供了设置有一对多腔FBG干涉仪的FBG色散补偿器。 色散补偿器设置有两个温度控制装置，每个温度控制装置可操作地连接到多空腔干涉仪之一，用于热光移动其光谱响应，从而提供能够补偿所有色散阶数的可调谐色散补偿器。