Optical amplification in the 850 nm window
AssigneeSprint Communications Company L.P.
InventorYouichi Akasaka
Life of this patent
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Abstract
Systems and methods are disclosed for amplifying optical signals in the 850 nm window. In one embodiment, an amplifier system includes a span of Thulium-doped fiber (TDF) and two pump systems. The TDF span receives and transports optical signals in the 850 nm window. A first pump system pumps the TDF span at a wavelength in the range of 1390 nm to 1430 nm, and a second pump system pumps the TDF span at a wavelength in the range of 670 nm to 720 nm. The pumping generates gain in the optical signals in the 850 nm window. In another embodiment, the amplifier system includes a single pump system. The pump system pumps the TDF span at a wavelength in the range of 1390 nm to 1430 nm to generate gain in the 850 nm window.
Claims20
An amplifier system, comprising:
- a span of Thulium-doped fiber (TDF) configured to transport optical signals in an 850 nm window;
- a first pump system configured to pump the TDF span at a wavelength in the range of 1390 nm to 1430 nm;
- and
- a second pump system configured to pump the TDF span at a wavelength in the range of 670 nm to 720 nm;
- wherein the pumping by the first pump system and the second pump system is configured to generate gain in the optical signals in the 850 nm window.
A method of operating an amplifier system, wherein the amplifier system includes a span of Thulium-doped fiber (TDF), a first pump system, and a second pump system, the method comprising:
- receiving optical signals in the TDF span in an 850 nm window;
- pumping the TDF span at a wavelength in the range of 1390 nm to 1430 nm using the first pump system;
- pumping the TDF span at a wavelength in the range of 670 nm to 720 nm using the second pump system;
- and
- generating gain in the optical signals in the 850 nm window.
An amplifier system, comprising:
- a span of Thulium-doped fiber (TDF) configured to transport optical signals in an 850 nm window;
- and
- a pump system configured to pump the TDF span at a wavelength in the range of 1390 nm to 1430 nm;
- wherein the pumping by the pump system is configured to generate gain in the optical signals in the 850 nm window.
A method of operating an amplifier system, wherein the amplifier system includes a span of Thulium-doped fiber (TDF) and a pump system, the method comprising:
- receiving optical signals in the TDF span in an 850 nm window;
- pumping the TDF span at a wavelength in the range of 1390 nm to 1430 nm using the pump system;
- and
- generating gain in the optical signals in the 850 nm window.
Dependencies are inferred from the claim text.