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在掺铒光纤线型的单模光纤腔中接续一段多模光纤 ,依靠多模光纤中导模的空间模式跳动与激光谐振腔中的偏振烧孔共同作用 ,实现了窄线宽多波长的同时激射。激射波长的 3d B线宽约为 0 .0 9nm ,波长间隔为 0 .6 8nm。
In the erbium-doped fiber linear single-mode fiber cavity to continue a section of multimode fiber, relying on multimode fiber guided mode spatial mode beating and laser resonator polarization hole together to achieve a narrow linewidth multi-wavelength at the same time Laser. The 3dB linewidth of the lasing wavelength is about 0.09 nm and the wavelength spacing is 0.068 nm.