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公开(公告)号:EP1326107A3
公开(公告)日:2004-03-10
申请号:EP02023884.6
申请日:2002-10-24
CPC分类号: G02B6/12016 , G02B6/1203 , G02B6/26 , G02B6/30 , G02B6/32 , G02B6/36
摘要: The invention relates to an optical coupling device that provides passive compensation for a shift in center wavelength due to a change in ambient temperature. A conventional solution is to mount one of the elements to be coupled on a pedestal or cantilevered arm, which has a coefficient of thermal expansion (CTE) different from a frame fixed relative to the other of the elements to be coupled. Unfortunately, these devices do not provide consistent results over long periods of time, due to uncontrolled movement of the outer free end of the cantilevered arm or pedestal. The present invention provides an expansion arm fixed on one end to a frame, a holder on the other end of the expansion arm, and a pair of flexible arms connecting the holder to the frame. This arrangement enables the expansion arm to freely expand in a first direction, while greatly restricting movement in any other direction. The present invention also relates to a optical coupling device that includes a expansion arm with an adjustable effective length. Furthermore, optical coupling devices are disclosed that include an expansion arm for moving a lens relative to one or more waveguides providing thermal compensation.
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公开(公告)号:EP1326107A2
公开(公告)日:2003-07-09
申请号:EP02023884.6
申请日:2002-10-24
IPC分类号: G02B6/30
CPC分类号: G02B6/12016 , G02B6/1203 , G02B6/26 , G02B6/30 , G02B6/32 , G02B6/36
摘要: The invention relates to an optical coupling device that provides passive compensation for a shift in center wavelength due to a change in ambient temperature. A conventional solution is to mount one of the elements to be coupled on a pedestal or cantilevered arm, which has a coefficient of thermal expansion (CTE) different from a frame fixed relative to the other of the elements to be coupled. Unfortunately, these devices do not provide consistent results over long periods of time, due to uncontrolled movement of the outer free end of the cantilevered arm or pedestal. The present invention provides an expansion arm fixed on one end to a frame, a holder on the other end of the expansion arm, and a pair of flexible arms connecting the holder to the frame. This arrangement enables the expansion arm to freely expand in a first direction, while greatly restricting movement in any other direction. The present invention also relates to a optical coupling device that includes a expansion arm with an adjustable effective length. Furthermore, optical coupling devices are disclosed that include an expansion arm for moving a lens relative to one or more waveguides providing thermal compensation.
摘要翻译: 本发明涉及一种光耦合装置,其由于环境温度的变化而对中心波长的偏移提供无源补偿。 传统的解决方案是将要联接的元件之一安装在基座或悬臂上,其具有与要耦合的元件中另一个固定的框架不同的热膨胀系数(CTE)。 不幸的是,由于悬臂或底座的外自由端的不受控制的运动,这些装置在长时间内不能提供一致的结果。 本发明提供一种固定在框架上的膨胀臂,在膨胀臂的另一端上的保持架以及将支架连接到框架上的一对柔性臂。 这种布置使得膨胀臂能够沿着第一方向自由地膨胀,同时极大地限制在任何其它方向上的移动。 本发明还涉及一种光耦合装置,其包括具有可调节有效长度的膨胀臂。 此外,公开了包括用于相对于提供热补偿的一个或多个波导移动透镜的扩展臂的光耦合装置。
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