Thulium doped fiber pump for pumping Raman amplifiers
AssigneeCorning Incorporated
InventorsAdam J Ellison, John D Minelly, Bryce N Samson, Nicholas J Traynor, Donnell T Walton
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Abstract
An optical transmission system is provided comprising a thulium doped optical fiber, a light emitting pump device optically coupled to the thulium doped fiber, and a Raman amplifier fiber optically coupled to the thulium doped optical fiber. The light emitting pump device in combination with the thulium doped fiber generates a first amplification pump wavelength and the Raman amplifier receives the first amplification pump wavelength. The first pump wavelength amplifies an optical signal in the Raman amplifier, the Raman amplifier operating at a signal wavelength in the range of about 1530 nm to about 1625 nm.
Claims38
An optical transmission system including a Raman amplifier, said Raman amplifier comprising:
- a thulium doped optical fiber;
- a light emitting pump device optically coupled to said thulium doped fiber, said light emitting pump device in combination with said thulium doped fiber generating a first amplification pump wavelength;
- and
- a Raman amplifier fiber optically coupled to said thulium doped optical fiber and receiving the first amplification pump wavelength,
- wherein said first amplification pump wavelength amplifies an optical signal in the Raman amplifier, said Raman amplifier operating at a signal wavelength in the range of about 1530 nm to about 1625 nm.
A method of amplifying an optical signal in a Raman amplification system, comprising the steps of:
- providing a thulium-doped optical fiber;
- generating a first amplification pump wavelength in the fiber;
- and
- pumping a Raman amplifier with the first amplification pump wavelength,
- wherein the first amplification pump wavelength provides Raman amplification of an optical signal having a wavelength in the range of from about 1530 nm to about 1625 nm.
An optical amplifier comprising:
- a thulium doped optical fiber;
- a low power pump seed source optically coupled to said thulium doped optical fiber for generating a first amplification pump wavelength and a second amplification pump wavelength;
- and
- a Raman amplifier receiving the first and second amplification pump wavelengths,
- wherein the first amplification pump wavelength has a wavelength of from about 1455 nm to about 1465 nm, and
- wherein said second amplification pump wavelength has a wavelength of about 1530 nm to about 1625 nm.
An optical amplifier comprising:
- a thulium doped optical fiber;
- a pump light emitting device optically coupled to the fiber for generating a first amplification pump wavelength and a second amplification pump wavelength;
- a fiber Bragg grating optically coupled to the fiber for selecting the first amplification pump wavelength and the second amplification pump wavelength;
- and
- a Raman amplifier fiber receiving the first and second amplification pump wavelengths.
An optical transmission system including a Raman amplifier, said Raman amplifier comprising:
- a thulium doped optical fiber;
- a light emitting pump device optically coupled to said thulium doped fiber, said light emitting pump device in combination with said thulium doped fiber generating at least two different pump wavelengths;
- and
- a Raman amplifier fiber optically coupled to said thulium doped optical fiber and receiving the at least two different pump wavelengths,
- wherein said at least two different pump wavelengths amplify an optical signal in the Raman amplifier, said Raman amplifier operating at a signal wavelength in the range of about 1530 nm to about 1625 nm.
A Raman amplifier comprising:
- a rare-earth doped optical fiber;
- a light emitting pump device optically coupled to said rare-earth doped fiber, said light emitting pump device in combination with said rare earth doped fiber generating a first amplification pump wavelength;
- and
- a Raman amplifier fiber optically coupled to said rare earth doped optical fiber and receiving the first amplification pump wavelength,
- wherein said first amplification pump wavelength amplifies an optical signal in the Raman amplifier.
Dependencies are inferred from the claim text.