In order to satisfy the requirements of distributed fiber Bragg grating sensor systems and ultra-high-rate all-optical communication systems

this paper designs and implements a novel hybrid Erbium-and Thulium-Doped Fiber（TDF）super-fluorescent ultra-wideband light source.In the experiments

it uses 980nm and 1 480nm laser diodes to pump the Er-Doped Fiber（EDF）

generating C+L band light.Then it uses 30%of this light to optically pump the TDF

producing S-band fluorescence light.Finally

it couples the remaining 70%of C + L-band light with the S-band fluorescent light

resulting in an ultra-wideband S+C+L light source.The total power of this light source is 36mW（15.6dBm）

with a bandwidth of 1 460

1

610nm. The test results of this light source show that its bandwidth

power and other performance indexes satisfy the requirements for the applications of distributed fiber grating sensor systems and all-optical communication systems.