| 摘要 |
Method and apparatus for the alignment of optical interconnections between a t least one optical data transmission point (104) and at least one correspondi ng optical data receiving point (107). A collimated beam (201) of data carrying light is polarized through an electrically-controlled light polarizer (108), such as a spatial light modulator or a liquid crystal, which comprises an array of pixels. A focused beam (202) of the data-carrying light, emitted fr om the light polarizer, is obtained on the receiving point, by individually controlling the polarization of each pixel, and deflecting the direction of the collimated beam when emitted from the light polarizer, until a predetermined value of an electrical signal (current and/or voltage) representing the level of alignment is obtained. The collimated beam is further continuously and/or adaptively aligned by determining a desired current and a threshold current and/or voltage produced by an optical sensor at the receiving point. A comparator circuitry compares the actual current produced by the optical sensor, to the threshold current, and a feedback loo p controls each individual pixel according to the comparison result.
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