公开(公告)号：WO2014088507A1

公开(公告)日：2014-06-12

申请号：PCT/SE2013/051468

申请日：2013-12-06

Applicant: FINISAR SWEDEN AB

Inventor： ADAMS, Dave ,  WESSTRÖM, Jan-OLof

IPC: G02B6/28 ,  G02B6/293 ,  G02B26/12

CPC classification number: G02B6/2804 ,  G02B6/125 ,  G02B6/26 ,  G02B6/2813 ,  G02B6/29344 ,  G02B6/3536 ,  G02F1/00

Abstract: Method for modifying the splitting or combining ratio of a first multimode interference (MMI) coupler (100), which first coupler is arranged to convey light from one or several input waveguides to one or several output waveguides, wherein a film (103a) of a material is arranged over the first coupler, wherein the film is strained so that a force is applied by the film to the surface of the first coupler, and so that the refractive index profile in the material of the first coupler changes as a consequence of the force, and wherein the splitting or combining ratio is modified as a consequence of the changed refractive index profile.

Abstract translation: 用于修改第一多模干涉（MMI）耦合器（100）的分离或组合比的方法，该第一耦合器被布置成将光从一个或多个输入波导传送到一个或多个输出波导，其中， 材料布置在第一耦合器之上，其中膜被应变以使得膜被施加到第一耦合器的表面上，并且使得第一耦合器的材料中的折射率分布由于 力，并且其中分裂或组合比被改变为折射率分布改变的结果。

公开(公告)号：WO2014046595A1

公开(公告)日：2014-03-27

申请号：PCT/SE2013/051063

申请日：2013-09-12

Applicant: FINISAR SWEDEN AB

Inventor： ADAMS, Dave

IPC: G02B6/14 ,  G02B6/125 ,  G02B6/28

CPC classification number: G02B6/125 ,  G02B6/2813

Abstract: An optical waveguide splitter (1) with a symmetric splitting power ratio having one input port (2) and two output ports (3,4), which waveguide splitter is a rectangular MMI (Multi Mode Interference) type splitter, comprising a substrate (5) and one or more vertical waveguide layers or materials that have been deposited upon or diffused into the substrate (6), and optionally one or more cladding layers (7) that have been deposited upon the vertical waveguide layer (s) (6), which layers or materials and optionally one or more of said cladding layers together and optionally in combination with the substrate (5) form a profile of the refractive index that supports the propagation of light in a plane that is substantially parallel to the substrate (parallel to the X and Z directions). The invention is characterized in that, on both sides of the input port (2), the waveguide sidewalls terminate at a depth (Y-direction) that is deeper than the location of the peak intensity of the optical beam or guided mode that transports most or all of the propagating light energy within the input port, and that the waveguide sidewalls on both sides of each output port (3 and 4) terminate at a depth that is shallower than the location of the peak intensity of the mode or optical beam that transports the majority of the light energy within each given output port.

Abstract translation: 一种具有对称分裂功率比的光波导分离器（1），具有一个输入端口（2）和两个输出端口（3,4），该波导分路器是矩形MMI（多模式干扰）型分离器，包括基板 ）和已经沉积在基底（6）上的一个或多个垂直波导层或材料，以及可选地已经沉积在垂直波导层（6）上的一个或多个覆层（7） 哪些层或材料以及可选地一个或多个所述包覆层在一起并且任选地与衬底（5）组合形成折射率的轮廓，所述轮廓支持光在基本上平行于衬底的平面中的传播（平行于 X和Z方向）。 本发明的特征在于，在输入端口（2）的两侧，波导侧壁终止于深度（Y方向），该深度（Y方向）比传输最多的光束或导向模式的峰值强度的位置深 或输入端口内的所有传播光能，并且每个输出端口（3和4）两侧的波导侧壁终止于比模式或光束的峰值强度的位置浅的深度， 传输每个给定输出端口内的大部分光能。