Generation of low-timing-jitter femtosecond pulse trains with 2 GHz repetition rate via external repetition rate multiplication.

Generation of low-timing-jitter 150 fs pulse trains at 1560 nm with 2 GHz repetition rate is demonstrated by locking a 200 MHz fundamental polarization additive-pulse mode-locked erbium fiber laser to high-finesse external Fabry-Perot cavities. The timing jitter and relative intensity noise of the repetition-rate multiplied pulse train are investigated.

High repetition rate, low jitter, low intensity noise, fundamentally mode-locked 167 fs soliton Er-fiber laser.

A fundamentally mode-locked soliton Er-fiber laser generating 167 fs pulses at 194 MHz via polarization additive-pulse mode locking is demonstrated. This simple, compact, and high repetition rate source exhibits a low timing jitter of 18 fs [1 kHz, 10 MHz] and the lowest relative intensity noise of less than 0.003% [1 kHz, 10 MHz] observed from an Er-fiber laser.