Radiant energy – Ionic separation or analysis – Static field-type ion path-bending selecting means
Patent
1975-01-17
1976-04-27
Mayer, Albert J.
Radiant energy
Ionic separation or analysis
Static field-type ion path-bending selecting means
H04B 900
Patent
active
039537277
ABSTRACT:
A system for creating independent communication channels using a single optical fibre, is provided. To this end, at the transmitting end, several "laser" diodes such as that E.sub.11 (FIG. 1) supply infrared rays of a wavelength defined to within at least 50 angstrom units (in the case of suitably doped gallium arsenide diodes), to selective mirrors such as that M.sub.11 which are quasi-transparent vis-a-vis other wave lengths. These rays focussed along with those coming from other diodes, upon the entry face 11 of the fibre. At the receiving end, there is an arrangement similar to that at the transmitting end, but comprising, instead of the diodes, photodetectors. A diode and a photodetector may be exchanged in order to provide a channel operating in the reverse direction.
REFERENCES:
patent: 3297875 (1967-01-01), Garwin et al.
patent: 3449577 (1969-06-01), Kogelnik
patent: 3566127 (1971-02-01), Hafner
patent: 3590248 (1971-06-01), Chatterton
patent: 3670166 (1972-06-01), Kaminow
patent: 3838278 (1974-09-01), Duguay
patent: 3845293 (1974-10-01), Borner
patent: 3845294 (1974-10-01), Indig
D'Auria Luigi
Puech Claude
Reymond Jean-Claude
"Thomson-CSF"
Mayer Albert J.
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