초록 ▼

A Raman amplifier is provided that includes at least a portion of optical fiber in which an optical signal travels. The optical fiber portion may encompass all or part of the optical transmission path of an optical communication system. A pump energy unit is provided that includes first and second p

A Raman amplifier is provided that includes at least a portion of optical fiber in which an optical signal travels. The optical fiber portion may encompass all or part of the optical transmission path of an optical communication system. A pump energy unit is provided that includes first and second pump sources providing pump power at first and second wavelengths, respectively. The first and second wavelengths generate first and second gain profiles in the optical fiber portion. The first and second gain profiles overlap in wavelength. An optical coupler couples the pump power to the optical fiber portion. Since the gain profiles overlap, the Raman amplifier has a greater bandwidth than can be achieved with a pump operating at a single wavelength.

대표청구항 ▼

[ The invention claimed is:] [1.]1. A Raman amplifier, comprising:at least a portion of optical fiber in which an optical signal travels;a pump energy unit that includes first and second pump sources providing pump power at first and second wavelengths, respectively, said first and second wavelength

[ The invention claimed is:] [1.]1. A Raman amplifier, comprising:at least a portion of optical fiber in which an optical signal travels;a pump energy unit that includes first and second pump sources providing pump power at first and second wavelengths, respectively, said first and second wavelengths generating first and second gain profiles in said optical fiber portion;an optical coupler for coupling said pump power to said optical fiber portion; andwherein said first and second gain profiles are overlapping.