Optical repeater having independently controllable amplification factors
First Claim
1. An optical repeater comprising:
- a first backward pumping optical coupler and a first forward pumping optical coupler inserted in a first optical fiber transferring therethrough first optical signals;
a second backward pumping optical coupler and a second forward pumping optical coupler inserted in a second optical fiber transferring therethrough second optical signals;
a first light source for supplying a first pump light having a first power level to said first backward pumping optical coupler and said second forward pumping optical coupler;
a second light source for supplying a second pump light having a second power level to said first forward pumping optical coupler and said second backward pumping optical coupler; and
a driver for driving said first and second light sources to control said first power level and said second power level.
1 Assignment
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Accused Products
Abstract
An optical repeater includes: a first forward pumping coupler and a first backward pumping coupler inserted in an uplink optical fiber consecutively along the transfer direction of the optical signals therein; a second backward pumping coupler and a second forward pumping coupler inserted in a downlink optical fiber consecutively along the transfer direction of the optical signals therein; a first light source for supplying a pump light having a controlled power level to the first backward pumping coupler and the second forward pumping coupler; a second light source for supplying a pump light having a controlled power level to the first forward pumping coupler and the second backward pumping coupler. Each of the pumping couplers is a Raman amplifier.
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Citations
12 Claims
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1. An optical repeater comprising:
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a first backward pumping optical coupler and a first forward pumping optical coupler inserted in a first optical fiber transferring therethrough first optical signals; a second backward pumping optical coupler and a second forward pumping optical coupler inserted in a second optical fiber transferring therethrough second optical signals; a first light source for supplying a first pump light having a first power level to said first backward pumping optical coupler and said second forward pumping optical coupler; a second light source for supplying a second pump light having a second power level to said first forward pumping optical coupler and said second backward pumping optical coupler; and a driver for driving said first and second light sources to control said first power level and said second power level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification