公开(公告)号：US20160131836A1

公开(公告)日：2016-05-12

申请号：US14895612

申请日：2014-01-29

Applicant: NEC CORPORATION

Inventor： Takashi MATSUMOTO

IPC: G02B6/122 ,  G02B6/27 ,  G02B6/14 ,  G02B6/293

CPC classification number: G02B6/1228 ,  G02B6/14 ,  G02B6/274 ,  G02B6/29355 ,  G02B6/2938 ,  G02B2006/12097 ,  G02B2006/121

Abstract: Provided is a waveguide mode converter (30) that converts a waveguide mode and that is placed in a transition area (connection section) (43) of a rib-type waveguide (50) and a channel-type waveguide (51). The rib-type waveguide (50) has a tapered section (23b). The tapered section (23b) constitutes a core layer (23) that extends on both sides of a rib (23a) and has a width (Wt) that changes gradually in a direction that is vertical to the waveguide direction.

Abstract translation: 提供了一种波导模式转换器（30），其转换波导模式并且被布置在肋型波导（50）和通道型波导（51）的过渡区域（连接部分）（43）中。 肋状波导（50）具有锥形部（23b）。 锥形部（23b）构成在肋（23a）的两面上延伸的芯层（23），其宽度（Wt）在与波导方向垂直的方向上逐渐变化。

公开(公告)号：US20150378098A1

公开(公告)日：2015-12-31

申请号：US14768239

申请日：2013-11-19

Applicant: NEC CORPORATION

Inventor： Takashi MATSUMOTO

IPC: G02B6/126 ,  G02B6/122 ,  G02B6/293 ,  G01J9/02

CPC classification number: G02B6/126 ,  G01J9/02 ,  G01J2009/0288 ,  G02B6/122 ,  G02B6/1228 ,  G02B6/29352 ,  G02B6/2938 ,  G02B2006/12097 ,  G02B2006/121

Abstract: Provided are a polarization beam splitter and an optical device with high productivity. A polarization beam splitter (PBS) according to an exemplary embodiment of the present invention includes: a demultiplexer (11) that is formed of a rib waveguide (50) and demultiplexes input light into first input light and second input light; a multiplexer (14) that is formed of the rib waveguide (50) and multiplexes the first input light and the second input light that are obtained by demultiplexing the input light by the demultiplexer (11); a first arm waveguide (12) that is formed of a channel waveguide (51) and guides the first input light to the multiplexer (11); and a second arm waveguide (13) that is formed of the channel waveguide (51), generates a phase difference in the first input light propagating through the first arm waveguide, and guides the second input light to the multiplexer (14).

Abstract translation: 提供了一种具有高生产率的偏振分束器和光学装置。 根据本发明的示例性实施例的偏振分束器（PBS）包括：解复用器（11），其由肋波导（50）形成，并且将输入光解复用为第一输入光和第二输入光; 多路复用器（14），其由所述肋波导（50）形成，并且通过由所述解复用器（11）解复用所输入的光而获得的所述第一输入光和所述第二输入光进行多路复用; 第一臂波导（12），其由通道波导（51）形成并将第一输入光引导到多路复用器（11）; 以及由通道波导（51）形成的第二臂波导（13），在通过第一臂波导传播的第一输入光中产生相位差，并将第二输入光引导到多路复用器（14）。