公开(公告)号：US5974206A

公开(公告)日：1999-10-26

申请号：US993944

申请日：1997-12-19

Applicant: Terry Bricheno ,  Gregory John Milner ,  Alan Robinson

Inventor： Terry Bricheno ,  Gregory John Milner ,  Alan Robinson

IPC: G02B6/34 ,  G02B6/00

CPC classification number: G02B6/2746 ,  G02B6/2706 ,  G02B6/274 ,  G02B6/278 ,  G02B6/29319 ,  G02B6/29394

Abstract: A dispersion compensator exhibiting low polarisation mode dispersion is constructed from a polarisation beam-splitter, a .pi./4 rotation Faraday rotator, and a matched pair of polarisation maintaining fibres provided with a matched pair of chirped Bragg reflection gratings. The waveguides are oriented with respect to the beam-splitter so that light reaching the waveguides from the beam-splitter via the rotator is launched into both waveguides with a polarisation state aligned with the same polarisation axis (i.e. both fast or both slow).

Abstract translation: 显示出低偏振模色散的色散补偿器由偏振分束器，pi / 4旋转法拉第旋转器和配置有匹配对啁啾布拉格反射光栅的一对偏振保持光纤构成。 波导相对于分束器定向，使得通过旋转器到达分束器的波导的光被发射到具有与相同偏振轴对准的偏振状态的两个波导（即，两个快速或两个慢）。