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在环形腔掺镱光纤激光器中加入一段G .6 5 2光纤作为多模光纤 ,依靠其中导模的空间模式跳变构成动态梳状滤波器 ,于室温下实现了掺镱光纤激光器 1 0 3μm波长附近稳定的 6波长激光同时输出。激光线宽为 0 15nm ,边模抑制比达到 4 0dB以上。通过调整腔内的偏振控制器 ,可以得到不同波长个数和波长间隔的多波长激光输出
A G665 fiber is added as a multimode fiber to the ring cavity Ytterbium-doped fiber laser to form a dynamic comb filter by changing the spatial mode of the guided mode. The Ytterbium-doped fiber laser has a wavelength of 103 μm at room temperature Nearby stable 6-wavelength laser output at the same time. Laser linewidth of 0 15nm, side mode suppression ratio of more than 4 0dB. By adjusting the polarization controller in the cavity, multi-wavelength laser outputs with different number of wavelengths and wavelength spacing can be obtained