Undersea optical transmission system employing low power consumption optical amplifiers
First Claim
1. A method comprising:
- providing first and second land-based cable stations, at least one of the cable stations including power feed equipment (PFE) supplying electrical power to the cable at a voltage of no more than about 6 kv, said PFE being located in at least one of the cable stations;
providing an undersea WDM optical transmission cable having a length corresponding to those required in the undersea regional market, said cable including at least one optical fiber pair for supporting bidirectional communication between the first and second cable stations; and
providing at least one repeater located along the optical transmission cable, said repeater including at least two optical amplifiers each providing optical gain to one of the optical fibers in the optical fiber pairs, said optical gain being in a range from about 12 to 20 dB.
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Accused Products
Abstract
An undersea WDM optical transmission system is provided. The system includes first and second land-based cable stations, at least one of the cable stations includes power feed equipment (PFE) supplying electrical power to the cable at a voltage of no more than about 6 kv or less. The PFE is located in at least one of the cable stations. The system also includes an undersea WDM optical transmission cable having a length corresponding to those required in the undersea regional market. The cable includes at least one optical fiber pair for supporting bidirectional communication between the first and second cable stations. At least one repeater is located along the optical transmission cable. The repeater includes at least two optical amplifiers each providing optical gain to one of the optical fibers in the optical fiber pairs. The optical gain is in a range from about 12 to 20 dB.
38 Citations
18 Claims
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1. A method comprising:
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providing first and second land-based cable stations, at least one of the cable stations including power feed equipment (PFE) supplying electrical power to the cable at a voltage of no more than about 6 kv, said PFE being located in at least one of the cable stations;
providing an undersea WDM optical transmission cable having a length corresponding to those required in the undersea regional market, said cable including at least one optical fiber pair for supporting bidirectional communication between the first and second cable stations; and
providing at least one repeater located along the optical transmission cable, said repeater including at least two optical amplifiers each providing optical gain to one of the optical fibers in the optical fiber pairs, said optical gain being in a range from about 12 to 20 dB. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An undersea WDM optical transmission system, comprising:
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first and second land-based cable stations, at least one of the cable stations including power feed equipment (PFE) supplying electrical power to the cable at a voltage of no more than about 6 kv, said PFE being located in at least one of the cable stations;
an undersea WDM optical transmission cable having a length corresponding to those required in the undersea regional market, said cable including at least one optical fiber pair for supporting bidirectional communication between the first and second cable stations; and
at least one repeater located along the optical transmission cable, said repeater including at least two optical amplifiers each providing optical gain to one of the optical fibers in the optical fiber pairs, said optical gain being in a range from about 12 to 20 dB. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification