| 摘要 |
PCT No. PCT/FR96/00775 Sec. 371 Date Nov. 24, 1997 Sec. 102(e) Date Nov. 24, 1997 PCT Filed May 23, 1996 PCT Pub. No. WO96/37933 PCT Pub. Date Nov. 28, 1996In a transmission laser feeding an optical fibre to which it is coupled, the method comprises providing a Lippmann effect structure with thin stratifications by injecting into the laser light-guide a series of individual modulating electrical currents, applied via a photoemissive medium (12) to a plurality of discrete electrodes (1-6) regularly spaced along the path of the transmitted laser beam (18), so that the optical fibre carries a light spectrum corresponding to the Fourier transform of the set of data input by said modulating currents as electrical signals.
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