We report the generation of 207-fs pulses with 1.2 mW average power at 1036 nm directly from a passively modelocked Yb-doped fibre laser with a nonlinear optical loop mirror for mode-locking and pairs of diffraction g...We report the generation of 207-fs pulses with 1.2 mW average power at 1036 nm directly from a passively modelocked Yb-doped fibre laser with a nonlinear optical loop mirror for mode-locking and pairs of diffraction gratings for intracavity dispersion compensation. These results imply a 4-fold reduction in pulse duration over previously reported figure-of-eight cavity passively mode-locked Yb-doped fibre lasers. Stable pulse trains are produced at the fundamental repetition rate of the resonator, 24.0 MHz. On the other hand, this laser offers a cleaner spectrum and greater stability and is completely self-starting.展开更多
基金Project supported by the National Natural Science Foundation of China （Grant Nos 60537060 and 10390160）.
文摘We report the generation of 207-fs pulses with 1.2 mW average power at 1036 nm directly from a passively modelocked Yb-doped fibre laser with a nonlinear optical loop mirror for mode-locking and pairs of diffraction gratings for intracavity dispersion compensation. These results imply a 4-fold reduction in pulse duration over previously reported figure-of-eight cavity passively mode-locked Yb-doped fibre lasers. Stable pulse trains are produced at the fundamental repetition rate of the resonator, 24.0 MHz. On the other hand, this laser offers a cleaner spectrum and greater stability and is completely self-starting.
