| 发明名称 | Polarization diverse demultiplexing | ||
| 摘要 | A method for demultiplexing an optical signal includes receiving a multi polarization optical signal, separating the multi polarization optical signal into a first polarization optical signal and a second polarization optical signal, rotating a polarization of the first polarization optical signal to match a polarization of the second polarization optical signal, routing the first polarization optical signal and the second polarization optical signal to a common demultiplexing device, outputting a channel of the first polarization optical signal and the second polarization optical signal to a common photodetector. | ||
| 申请公布号 | US8948548(B2) | 申请公布日期 | 2015.02.03 |
| 申请号 | US201213611229 | 申请日期 | 2012.09.12 |
| 申请人 | International Business Machines Corporation | 发明人 | Assefa Solomon;Gill Douglas M.;Green William M. |
| 分类号 | G02B6/12 | 主分类号 | G02B6/12 |
| 代理机构 | Cantor Colburn LLP | 代理人 | Cantor Colburn LLP ;Alexanian Vazken |
| 主权项 | 1. A method for demultiplexing an optical signal, the method comprising: receiving a multi polarization optical signal; separating the multi polarization optical signal into a first polarization optical signal and a second polarization optical signal; rotating a polarization of the first polarization optical signal to match a polarization of the second polarization optical signal; focusing the rotated first polarization optical signal and the second polarization optical signal to a focal point located upstream from a common demultiplexing device to generate a multi-mode optical field and routing the rotated first polarization optical signal and the second polarization optical signal to the common demultiplexing device; outputting a channel including the rotated first polarization optical signal and the second polarization optical signal each having the matching polarization to a common photodetector. | ||
| 地址 | Armonk NY US | ||