Simultaneous 16 wavelengths operation at room temperature and the length of 4.1 m of birefracting fiber was achieved using an all fiber phase modulator in the erbium-doped fiber ring laser. The fiber laser with the wavelength spacing of 0.8 nm is anchored on the ITU frequency grid. 通过在环形腔掺铒光纤激光器中引入一个全光纤相位调制器,在双折射光纤长度约为4.1m时,实现了室温下16个波长的稳定输出,波长间隔为0.8nm,满足ITU信道标准。