Electrically-controlled optical branch connection

Details Electrically-controlled optical branch connection Electrically-controlled optical branch connection

1978-12-05

1980-12-02

Levy, Stewart J.

350 9629, G02B 514

Patent

active

042367832

ABSTRACT:
The invention relates to an electrically-controlled optical branch connection, for the guiding of an optical radiation from one input optical fibre to one of n output fibres or vice versa, obtained by associating a plurality of basic cells. Each basic cell comprises an optical guide capable of being controlled electrically so as to produce or not produce, depending on the control signal, a rotation through .pi./2 of the linear polarization at the input of the guide. The axes are so chosen that the polarized radiation issuing from the guide is propagated in the ordinary direction or the extraordinary direction in a bi-refracting plate.

REFERENCES:
patent: 3756690 (1973-09-01), Borrelli et al.
patent: 3990776 (1976-11-01), Tseng et al.
patent: 4148556 (1979-04-01), Sauter et al.
patent: 4153329 (1979-05-01), Gillette

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