Coupling arrangement for coupling optical connections

Details Coupling arrangement for coupling optical connections Coupling arrangement for coupling optical connections

1996-09-24

1999-03-23

Lefkowitz, Edward

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359110, 359117, 359118, 359125, 359128, 359166, 385 16, 385 24, H04J 1402

Patent

active

058868011

ABSTRACT:
In a ring-shaped optical distributive network, provided with a central node and a number (N) of network nodes, distribution signals DS are transmitted in two signal transport directions (F, B) by the central node. For the execution of a drop-and-continue function (DC function), each network node comprises a coupling arrangement (21) provided with an optical 2.times.2 switch (28) and a tapping device (33). The switch and the tapping device are mutually coupled in such a way that the DC function can be carried out in a switchable manner in only one of both signal transport directions simultaneously. The switch (28) is turned over when distribution signals from a signal transport direction in a related network node are no longer received. Such a network is self-healing for a single network failure.

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