| 简介 |
Provided are an optical fiber that prevents optical amplification bands from overlapping each other while enabling optical signal amplification by a rare-earth element and optical signal amplification by a nonlinear Raman effect to simultaneously occur by performing a pumping operation using a single-wavelength light source, and a hybrid optical amplifier using the same. The optical fiber includes : a clad; and a core configured to have a refractive index larger than that of the clad, the core including a first element doped to receive pumped light having a predetermined wavelength and optically amplify the received signal light into a first band using a rare-earth element, and a second element doped to optically amplify the received signal light using nonlinear Raman optical amplification into a second band. |
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