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    • 7. 发明授权
    • Compact high-stability optical switches
    • 紧凑型高稳定性光开关
    • US06970615B1
    • 2005-11-29
    • US10802126
    • 2004-03-16
    • Zuyun FangSiyu ShenJianhua Wang
    • Zuyun FangSiyu ShenJianhua Wang
    • G02B6/26G02B6/35
    • G02B6/3524G02B6/3528G02B6/3546G02B6/355G02B6/356
    • In one embodiment, an optical switch includes: a first dual-fiber collimator comprising a first pair of optical fibers; a second fiber collimator comprising an output optical fiber; a switching prism movable between a first position and a second position, and a first mirror facing the first collimator. In the first position, the switching prism directs light from an input fiber of the first collimator into the output fiber of the second collimator. In the second position, the switching prism is positioned out of an optical path of light emitted from the input fiber of the first collimator. The first mirror is aligned to reflect light from the input fiber of the first collimator into an output fiber of the first collimator when the switching prism is in the second position. The second collimator may be a dual-fiber collimator, and a second mirror may be placed facing the second collimator.
    • 在一个实施例中,光开关包括:第一双光纤准直器,包括第一对光纤; 包括输出光纤的第二光纤准直器; 可在第一位置和第二位置之间移动的切换棱镜,以及面向第一准直仪的第一镜。 在第一位置,开关棱镜将来自第一准直仪的输入光纤的光引导到第二准直仪的输出光纤中。 在第二位置,切换棱镜位于从第一准直仪的输入光纤发射的光的光路之外。 第一反射镜被对准以当切换棱镜处于第二位置时将来自第一准直仪的输入光纤的光反射到第一准直仪的输出光纤。 第二准直器可以是双光纤准直器,并且第二反射镜可以面向第二准直器放置。
    • 8. 发明申请
    • Multimode optical fiber coupler and fabrication method
    • 多模光纤耦合器及其制造方法
    • US20050244105A1
    • 2005-11-03
    • US11079685
    • 2005-03-12
    • Qinglin WangYanyan MaJianhua WangLixuan Xu
    • Qinglin WangYanyan MaJianhua WangLixuan Xu
    • G02B6/26G02B6/28
    • G02B6/2835
    • The present invention relates to a surface interaction type multimode optical fiber coupler. A representative embodiment of the present invention comprises a plurality of optical fibers with at least one having an expanded core section. Sections of the optical fibers including at least a portion of the expanded core sections are fused together forming a fused section. At least one of the optical fibers is suitable for multimode operations. According to an embodiment of the present invention, a method of fabrication an optical fiber coupler comprises: providing a plurality of optical fibers with at least one having an expanded core section; and maintaining sections of the optical fibers including at least a portion of the expanded core sections in contact and simultaneously heating at least a portion of the sections that are in contact to form a fused section until a predetermined end condition is reached.
    • 本发明涉及一种表面相互作用型多模光纤耦合器。 本发明的代表性实施例包括具有至少一个具有扩展的芯部分的多个光纤。 包括至少一部分发泡芯部分的光纤的部分熔合在一起,形成熔融部分。 至少一根光纤适用于多模操作。 根据本发明的实施例,一种制造光纤耦合器的方法包括:提供具有至少一个具有扩展的芯部分的多个光纤; 并且保持包括至少一部分所述膨胀的芯部分的光纤的部分接触,并且同时加热至少部分接触的部分以形成熔融部分,直到达到预定的结束条件。
    • 10. 发明授权
    • Variable optical attenuator
    • 可变光衰减器
    • US06714716B2
    • 2004-03-30
    • US10184553
    • 2002-06-28
    • Jian J ChenJianhua Wang
    • Jian J ChenJianhua Wang
    • G02B600
    • G02B26/02G02B6/266
    • 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.
    • 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。