Reconfigurable ring system for the transport of RF signals over

Details Reconfigurable ring system for the transport of RF signals over Reconfigurable ring system for the transport of RF signals over

1996-02-13

1999-03-09

Bacares, Rafael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359110, 359137, 359172, H04B 1020

Patent

active

058808639

ABSTRACT:
A reconfigurable ring architecture for RF transport over fibers which eliminates the need for multiple pairs of fibers to serve multiple microcells and the need for backup communications lines as a result of system failure due to a fiber break. The ring architecture has a plurality of remote units which are interconnected to a host unit in a serial fashion. The host unit transmits signals to the plurality of remote units and receives signals from the plurality of remote units. Each of the remote units having photodetectors for receiving the transmitted signals and an antenna/transmitter for receiving other signals from another source; a splitter for splitting the transmitted signals into two parts, one part of the signals being output from the remote unit and the other part of the signals being transferred to adjacent remote units and then back to the host unit; and a transmitter for transferring the other signals from the remote unit to adjacent remote units and then back to the host unit. The transmission and reception of signals taking place even in the event of failure of a remote unit or the interconnection between remote units.

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Stevens, William E. et al., "A 1.3-.mu.m Microwave Fiber-Optic Link Using A Direct-Modulated Laser Transmitter", Journal of Lightwave Technology vol. LT3 No. 2, Apr., 1985, pp. 308-315.

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