Passive optical network

Details Passive optical network Passive optical network

1993-04-29

1998-12-29

Bacares, Rafael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359167, H04J 1408

Patent

active

058547010

ABSTRACT:
A head-end station (1) is provided for a passive optical network system arranged to transmit downstream TDMA frames and receive upstream TDMA frames. The head-end station (1) comprises a TDMA master (5) and a plurality of optical stages (4a, 4b) connected in common to the TDMA master (5). The TDMA master (5) assembles incoming data into downstream TDMA frames and demultiplexes upstream TDMA frames. Each optical stage (4a, 4b) is arranged to be connected to a different respective fiber network (3a, 3b) and includes an optical transmitter which modulates an optical signal with downstream TDMA frames from the TDMA master (5) together with an optical receiver arranged to detect an optical signal carrying upstream TDMA frames.

REFERENCES:
patent: 4441180 (1984-04-01), Schussler
patent: 4776041 (1988-10-01), Husbands
patent: 5150247 (1992-09-01), Sharpe et al.

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