发明申请
- 专利标题: Polarization compensated optical tap
- 专利标题(中): 极化补偿光学抽头
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申请号: US10629143申请日: 2003-07-29
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公开(公告)号: US20050025427A1公开(公告)日: 2005-02-03
- 发明人: David Dougherty , Pang-Chen Sun , Duncan Harwood
- 申请人: David Dougherty , Pang-Chen Sun , Duncan Harwood
- 申请人地址: US CA San Jose
- 专利权人: JDS Uniphase Corporation
- 当前专利权人: JDS Uniphase Corporation
- 当前专利权人地址: US CA San Jose
- 主分类号: G02B6/12
- IPC分类号: G02B6/12 ; G02B6/125 ; G02B6/126 ; G02B6/26 ; G02B6/28
摘要:
A polarization compensated planar waveguide branch is disclosed having a planar optical trunk waveguide for transporting a linearly un-polarized optical signal having TE and TM modes. A planar optical branch waveguide, capable of supporting TE and TM modes is optically coupled to the trunk waveguide such that at least a portion of an optical signal propagating within the trunk waveguide will couple into the branch waveguide with an undesired imbalance, having stronger TM mode coupling than TE mode coupling for the at least the portion of the optical signal which couples into the branch waveguide from the trunk waveguide. A portion of said branch waveguide downstream from a region where coupling takes place between the trunk and branch waveguides or a waveguide portion optically coupled thereto, receives the at least a portion of the optical signal, and has at least a predetermined bend with a predetermined radius for compensating for the unwanted imbalance in the TM and TE mode caused by light optically coupling into the branch from the trunk waveguide.
公开/授权文献
- US07171085B2 Polarization compensated optical tap 公开/授权日:2007-01-30
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