75-femtosecond all-fiber ultrashort pulse laser
作者： DingHuan Deng , Li Zhan , YuXing Xia
DOI: 10.1007/S11434-008-0226-4
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摘要: We report the direct generation of 75-femosecond pulses from a stretched-pulse fiber ring laser using nonlinear polarization rotation mode-locking mechanism. As gain media in laser, high-doped erbium-doped working at positive dispersion was used to compensate negative standard single mode fiber. Under 125 mW pump power, average output power higher than 15 mW, with 25.9 MHz repetition rate and 53 nm spectrum width. Meanwhile, pulse energy greatly improved, which could reach 0.6 nJ. The easily achieved ran stably room temperature. All-fiber construction makes it compactable portable.
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