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报道了一种高重复频率全光纤非线性偏振旋转锁模掺铒光纤激光器,获得了重复频率217 MHz的锁模脉冲输出.该激光器使用一个偏振相关隔离器和一个偏振控制器即可获得稳定的锁模脉冲输出,结构简单,系统稳定.激光器锁模脉冲的脉冲宽度为69 fs,3 dB光谱宽度为56 nm,射频频谱信噪比为76 dB.
Reported a high repetition rate all-fiber nonlinear polarization rotation mode-locked erbium-doped fiber laser with a mode-locked pulse output of 217 MHz repetition rate.The laser uses a polarization-dependent isolator and a polarization controller to obtain a stable The mode-locked pulse output has simple structure and stable system.The pulse width of laser mode-locked pulse is 69 fs, the spectral width of 3 dB is 56 nm, and the SNR of RF spectrum is 76 dB.