A newly designed highpower broadband source is reported in this paper. A 1480 nm laser is employed to pump theerbium-doped fiber. The light is reflected by a linearly chirped fiber Bragg grating, thusamplified two times. The output power achieved is 1.41 mW with a 10 nm bandwidth. Theworking current corresponding to the linearly output is from 375 mA to 645 mA.