Optical: systems and elements – Optical modulator – Light wave temporal modulation
Patent
1992-10-23
1995-03-07
Bertsch, Richard A.
Optical: systems and elements
Optical modulator
Light wave temporal modulation
359250, 359252, 385 2, 385131, G02B 610
Patent
active
053963636
ABSTRACT:
Integrated electrooptic modulator and process for the production thereof. This modulator comprises a substrate (2), a guide structure having a guiding layer (14) defining a microguide (16) for the propagation of beams, interposed between the lower and upper layers (12, 18) having indices below that of the guiding layer, a cavity (20) made in the upper layer, an active material such as an active, solid, organic polymer (26), whose index can be electrically modified and which fills the cavity and serves as an optical guide, a confinement layer (28) covering the polymer and the guide structure, the indices of the upper layer and the confinement layer being below that of the polymer, two electrodes placed on either side of the polymer, an electrode (6) being positioned between the lower layer and the substrate and the other electrode (30) is located on the confinement layer.
REFERENCES:
patent: 4923264 (1990-05-01), Langer et al.
patent: 4929302 (1990-05-01), Valette
patent: 5091799 (1992-02-01), Sciortino et al.
Bertsch Richard A.
Commissariat a l''Energie Atomique
Freay Charles G.
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