公开(公告)号：US20040161197A1

公开(公告)日：2004-08-19

申请号：US10773005

申请日：2004-02-04

Applicant: Teraxion Inc.

Inventor： Francois Pelletier ,  Andre Vo Van

IPC: G02B006/34

CPC classification number: G02B6/022 ,  G02B6/02085 ,  G02B6/0218 ,  H04B10/2519

Abstract: An adjustable chromatic dispersion compensator is provided, with the possibility of passive athermalisation. The device includes an optical fiber grating which is fixed on its length to an elongated beam member that has a flexible cantilever portion so that a non-uniform tensile strain induced in the grating reconfigures the group delay response. The chirp of the grating is changed by the bending of the bar, allowing adjustable chromatic dispersion compensation. Adjustment of the central filter wavelength without affecting the grating integrity is further provided. A multi-material construction allows the package to passively compensate for the natural temperature dependence of the filter resonance wavelength by varying the strain in the fiber in response to changes in the ambient temperature.

Abstract translation: 提供了一种可调色散补偿器，具有被动绝热的可能性。 该装置包括光纤光栅，该光纤光栅在其长度上固定到具有柔性悬臂部分的细长梁部件，使得在光栅中感应的非均匀拉伸应变重新配置组延迟响应。 光栅的啁啾由条的弯曲而改变，允许可调色散补偿。 进一步提供中央滤波器波长的调整而不影响光栅的完整性。 多材料结构允许封装通过响应于环境温度的变化改变光纤中的应变而被动地补偿滤波器谐振波长的自然温度依赖性。