| 摘要 |
A system and method are provided for coupling a plurality of optical signals, such as data signals, between a corresponding plurality of single mode optical fibers (SMFs) and a multi-mode optical fiber (MMF), by optically coupling the optical signals of the SMFs with respective spaced-apart regions at a facet of the MMF, such that at least some of the regions partially overlap with a plurality of different spatial modes supported by the MMF. The optical coupling is performed by utilizing imaging and beam shaping optics configured to couple each of the SMF optical signals and the respective region at the MMF's optical pupil by carrying out the following: (i) imaging the SMF optical signal propagating in between the associated SMF and the respective region of the MMF to focus the optical signal emanating from the SMF onto the respective region or vice versa; and (ii) shaping the optical signal being focused to convert a lateral field distribution thereof, between a first predetermined field distribution corresponding to the SMF's spatial mode and a second predetermined field distribution at the respective region. |
