Abstract
We have developed a compact and stable all-fiber fundamentally mode-locked 12GHz laser system. The passively mode-locked laser centered at 1535nm has temporal pulse width of ∼2 ps and average power of 5mW. The timing jitter, which is cumulative from pulse-to-pulse, has been measured using an optical cross-correlation method and found to be 44 fs/pulse. The self-starting, mode-locked laser consists of a semiconductor-based saturable absorber with high modulation depth and a high gain per unit length, polarization-maintaining 0.8cm long Er/Yb phosphate fiber as a gain medium.
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