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1. 发明授权

US06714716B2 Variable optical attenuator 失效
标题翻译：可变光衰减器
公开(公告)号：US06714716B2
公开(公告)日：2004-03-30
申请号：US10184553
申请日：2002-06-28
申请人： Jian J Chen , Jianhua Wang
发明人： Jian J Chen , Jianhua Wang
IPC分类号： G02B600
CPC分类号： G02B26/02 , G02B6/266
摘要： A mechanically-adjustable variable optical attenuator includes an azimuthally-tapering, rotatable beam attenuator. In a plane perpendicular to the light beam to be attenuated, the projection of the beam attenuator comprises a sharp distal tip, a proximal region, and a concave curved light-blocking surface narrowing from the proximal region to the distal tip. The extent of the beam attenuator obstructing the light beam is varied by rotating the beam attenuator about a rotation axis perpendicular to the light beam direction. The beam attenuator geometry allows achieving high resolutions while limiting the beam attenuator size. The attenuated light beam can be a single-mode or multi-mode light beam.
摘要翻译：机械可调可变光衰减器包括方位锥形的可旋转光束衰减器。在垂直于待衰减的光束的平面中，光束衰减器的突出部包括尖锐的远端，近端区域和从近端区域向远端尖端变窄的凹形弧形遮光表面。通过围绕垂直于光束方向的旋转轴旋转光束衰减器来改变阻挡光束的光束衰减器的程度。光束衰减器几何形状允许在限制光束衰减器尺寸的同时实现高分辨率。衰减的光束可以是单模或多模光束。

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