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提出一种新型的掺铒光纤环形激光器,利用全光纤马赫曾德尔干涉仪选频,并将掺铒光纤浸在液氮中冷却,得到了稳定的7个波长的激光输出,波长间隔为0.65nm。
A new type of erbium-doped fiber ring laser is proposed. By using the all-fiber Mach-Zehnder interferometer, the erbium-doped fiber is immersed in liquid nitrogen and cooled to obtain a stable 7-wavelength laser output with a wavelength interval of 0.65 nm .