Optical transmission system and optical repeater
AssigneeFurukawa Electric Co., Ltd.
InventorShimoosako Kazutaka
Life of this patent
Estimating the term…
Abstract
An optical repeater connected to an optical transmission line between an optical network unit having an optical network unit (ONU) function on the side of a subscriber and an optical line termination (OLT) on the side of a center includes first electrical/optical conversion means connected to a first optical transmission line on the side of the center, a second electrical/optical conversion means connected to a second optical transmission line on the side of the subscriber, and transmission means connected between the first electrical/optical conversion means and the second electrical/optical conversion means to transmit an optical repeater supervisory signal between the optical transmission lines.
Claims13
An optical repeater connected to an optical transmission line having first and second optical transmission lines between at least one optical network unit (ONU) on the side of a subscriber and an optical line termination (OLT) on the side of a center, comprising:
- an optical signal processor connected between a first optical transmission line on the side of the center and a second optical transmission line on the side of subscriber;
- an optical multiplexer/demultiplexer connected to said first or second optical transmission line;
- and
- an ONU for supervising connected to said first or second optical transmission line through said optical multiplexer/demultiplexer to input/output electrical signal for supervising.
An optical transmission system comprising:
- an optical repeater connected to an optical transmission line having first and second optical transmission lines between at least one optical network unit (ONU) on the side of a subscriber and an optical line termination (OLT) on the side of a center, the optical repeater comprising:
- an optical signal processor connected between a first optical transmission line on the side of the center and a second optical transmission line on the side of subscriber;
- an optical multiplexer/demultiplexer connected to said first or second optical transmission line;
- and
- an ONU for supervising connected to said first or second optical transmission line through said optical multiplexer/demultiplexer to input/output electrical signal for supervising;
- a first optical network unit in said center side optical line termination, which is connected to said optical repeater through said first optical transmission line;
- and
- a second optical network unit in said subscriber side optical line termination, which is connected to said optical repeater through said second optical transmission line.
An optical repeater connected to an optical transmission line having first and second optical transmission lines between at least one optical network unit (ONU) on the side of a subscriber and an optical line termination (OLT) on the side of a center, comprising:
- means for processing an optical signal connected between a first optical transmission line on the side of the center and a second optical transmission line on the side of subscriber;
- means for optical multiplexing/demultiplexing connected to said first or second optical transmission line;
- and
- means for supervising connected to said first or second optical transmission line through said means for optical multiplexing/demultiplexing to input/output electrical signals for supervising.
Dependencies are inferred from the claim text.