公开(公告)号：US06798566B2

公开(公告)日：2004-09-28

申请号：US10173237

申请日：2002-06-13

申请人： Shohei Abe ,  Hidenori Nakada ,  Mototsugu Goto ,  Ikuo Maeda ,  Hideo Takeshita ,  Hiroaki Ono ,  Shusuke Wada

发明人： Shohei Abe ,  Hidenori Nakada ,  Mototsugu Goto ,  Ikuo Maeda ,  Hideo Takeshita ,  Hiroaki Ono ,  Shusuke Wada

IPC分类号： H01S300

CPC分类号： G02B6/29385 ,  G02B6/266 ,  G02B6/272 ,  G02B6/2766 ,  G02B6/29358 ,  G02B6/29361 ,  G02B27/283 ,  H01S3/005 ,  H01S2301/04

摘要： A variable optical gain equalizer in accordance with one embodiment of the present invention comprises a variable branching ratio beam splitter having a variable polarization rotator, the variable branching ratio beam splitter branching an input light beam into two light beams at an arbitrary power ratio, through control of the rotation angle of the polarization direction by the variable polarization rotator; an optical filter presenting different filter characteristics to the two branched output light beams; and a polarization coupler for polarization coupling the two light beams that have passed through the optical filter, wherein the rotation angle of the polarization direction is controlled by the variable polarization rotator so as to vary the spectra of the output light beams.

摘要翻译： 根据本发明的一个实施例的可变光学增益均衡器包括具有可变偏振旋转器的可变分光比分束器，可变分光比分光分束器通过控制将输入光束以任意的功率比分光成两个光束 通过可变偏振旋转器的偏振方向的旋转角度; 对两个分支输出光束具有不同滤光器特性的滤光器; 以及用于偏振耦合已经通过滤光器的两个光束的偏振耦合器，其中偏振方向的旋转角度由可变偏振旋转器控制，以便改变输出光束的光谱。

公开(公告)号：US5867314A

公开(公告)日：1999-02-02

申请号：US699213

申请日：1996-08-19

申请人： Yuko Ota ,  Koyu Takahashi ,  Shigetaka Goto ,  Mototsugu Goto ,  Terushi Otani

发明人： Yuko Ota ,  Koyu Takahashi ,  Shigetaka Goto ,  Mototsugu Goto ,  Terushi Otani

IPC分类号： G02B7/00 ,  G02F1/09 ,  H01F3/00 ,  G02B5/30

CPC分类号： H01F3/00 ,  G02B7/00 ,  G02F1/093 ,  Y10S372/703

摘要： A hollow magnetic member includes a plurality of separate magnetic pieces. A parting surface between such pieces is defined by a plane parallel to or defining an angle of not more than forty-five (45) degrees with a center axis of the magnetic member. A holder for supporting a polarizer has such a cross section defined by a part of a cylinder cut away along a plane parallel to or defining an angle of not more than forty-five (45) degrees with the center axis thereof. A notched portion is formed in a cutting surface for containing the polarizer. A jig for assembly includes a base for holding the holder and a plate for positioning optical elements such as the polarizer. The holder is disposed in a recess in the base with the notched portion directed upward. A bonding material is applied to the notched portion prior to installation of the polarizer. The plate is placed on the base by inserting pins through holes, and then a screw is engaged with a tapped hole. The polarizer is inserted through an opening in the plate and is received in the notched portion positioned just below the opening.

摘要翻译： 中空磁性部件包括多个分离的磁性部件。 这些片之间的分离表面由与磁性构件的中心轴平行或限定不超过四十五（45）度的角度的平面限定。 用于支撑偏振器的保持器具有由沿与平行于或限定与其中心轴线不超过四十五（45）度的角度的平面切割的圆柱体的一部分限定的横截面。 在用于容纳偏振器的切割表面中形成切口部分。 用于组装的夹具包括用于保持保持器的基座和用于定位诸如偏振器的光学元件的板。 保持器设置在基部的凹部中，而凹口部分朝向上方。 在安装偏振器之前，将接合材料施加到切口部分。 通过将销插入孔中将板放置在基座上，然后将螺钉与螺纹孔接合。 偏振器通过板中的开口插入并被容纳在位于开口正下方的凹口部分中。