Optical waveguides – With optical coupler – Switch
Patent
1990-11-29
1991-09-24
Healy, Brian
Optical waveguides
With optical coupler
Switch
385 20, 385 24, G02B 626
Patent
active
050509551
ABSTRACT:
The present invention relates to a fibreoptic switch for enabling one or more of n number of incoming optofibers to be connected selectively with a respective one of m number of outgoing optofibers. According to the invention, the switch includes a matrix block (1) having light transmitting devices (2) which extend in n number of rows and m number of columns between an input side and an output side. On the input side, the incoming optofibers (3) can be displaced linearly along a respective row of the rows of light transmitting devices (2), and the outgoing optofibers (6) on the output side can be displaced linearly along a respective column of the columns of light transmitting devices (2). A selected incoming optofibre (3) can therewith be displaced along its corresponding row to a desired column of light transmitting devices (2), and an outgoing optofiber (6) in a corresponding column can be displaced to a corresponding row of light transmitting devices (2), so as to mutually connect the selected optofibers.
REFERENCES:
patent: 4193662 (1980-03-01), Hara
patent: 4220396 (1980-09-01), Antell
patent: 4312561 (1982-01-01), Mead
patent: 4322126 (1982-05-01), Minowa et al.
patent: 4407562 (1983-10-01), Young
patent: 4512627 (1985-04-01), Archer et al.
patent: 4653849 (1987-03-01), Boirat et al.
patent: 4653850 (1987-03-01), Boirat et al.
patent: 4886335 (1989-12-01), Yanagawa et al.
Healy Brian
Telefonaktiebolaget L M Ericsson
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