Optical transmission apparatus

Details Optical transmission apparatus Optical transmission apparatus

1990-05-07

1991-12-03

Lee, John D.

Optical waveguides

With optical coupler

Plural

370 16, 370 161, 359110, 359173, 359164, 359152, G02B 628

Patent

active

050695215

ABSTRACT:
The apparatus comprises at least one standby optical fibre transmission path and at least one worker optical fibre transmission path. Each end of the paths is terminated by an associated transmit and receive electro-optic converters. The converters are connected to respective electrical protection switching devices. At least one optical switching means interfaces the electro-optic converters with the optical fibres at one end of the transmission paths and is arranged to switch the optical transmission between worker and standby fibres when a fault is detected.

REFERENCES:
patent: 4446551 (1984-05-01), Seo
patent: 4829512 (1989-05-01), Nakai et al.

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