以光纤光栅对为激光腔、双包层掺镱光纤为增益介质、976 nm半导体激光器为泵浦源，研制全光纤化的1 150 nm波段长波光纤激光振荡器.在室温下实现了最大平均输出功率为12.7 W的1 150 nm波段单模光纤激光输出，激光振荡器的光光转换效率为42.33%.最大功率输出时，激光中心波长为1 150.48 nm，光谱的3 dB线宽为0.45 nm，边模抑制比达38 dB.该研究对研制1 150 nm波段高功率光纤激光振荡器具有一定的参考价值.

An all-fiber 1 150 nm long-wavelength fiber laser oscillator was demonstrated by using a pairs of fiber brag grating as the laser cavity, a piece of Yb-doped as the gain media and a 976 nm laser diode as the pump source. 1 150 nm band single-mode fiber laser with max output power of 12.7 W is obtained at room temperature and the optical-to-optical conversion efficiency is up to 42.33%. The central wavelength is 1 150.48 nm, the 3 dB spectral width is 0.45 nm and the optical signal-to-noise ratio is 38 dB. The research results will make a contribution to the further development of high-power 1 150 nm long-wavelength fiber laser oscillator.