2.17 GHz Soliton-like Harmonic Mode-locking Generated from an Yb-doped Fiber Laser with Anomalous Net Dispersion

We demonstrate a 2.17 GHz harmonically mode-locked Yb-doped fiber laser with low pump power, which has a fundamental frequency of 167 MHz. The RF signal-to-noise ratio was confirmed larger than 60 dB.