Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1990-09-14
1993-06-22
Coles, Sr., Edward L.
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359173, 385 89, 333 28R, H04B 1000, H04B 1012
Patent
active
052219844
ABSTRACT:
A parallel optical data transmission device has an optical signal emitting unit, an optical signal reception unit and a parallel optical signal transmission cable for optically coupling therebetween. The optical signal emitting unit has an array of semiconductor lasers, whereas the reception unit has an array of semiconductor photodetectors of the same number. The transmission cable essentially consists of optical fibers bundled together. In the optical signal emitting unit, electrical drive signal transfer lines for the lasers have a stair-step bending pattern such that their transmission lengths sequentially vary. In the optical reception unit, electrical signal transmission lines for the photodetectors likewise has a stair-step bending pattern such that their transmission lengths sequentially differ, this stair-step pattern is like a reversed version of the stair-step pattern in the optical signal emitting unit, whereby the total lengths of electrical signal transmission line paths are made equal to one another for the respective transmission channels, thus ensuring compensation for a delay in parallel signal transmission.
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Furuyama Hideto
Nakamura Masaru
Bacares R.
Coles Sr. Edward L.
Kabushiki Kaisha Toshiba
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