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

Abstract

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.

Direct fiber comb stabilization to a gas-filled hollow-core photonic crystal fiber

“…The gas-filled hollow fiber, here mounted between two vacuum chambers, can be replaced with a sealed photonic microcell [26]. Furthermore, the 89 MHz rep rate comb with 9 GHz single stage filtering cavity may in the future be replaced with a GHz repetition rate comb based on one of many technologies [6][7][8][9][10]12].…”

“…In particular, sufficient power per tooth of the comb must be obtained, either by increasing the repetition rate of the laser or by amplifying the frequency comb, or both. Fiber lasers with repetition rates of 1-10 GHz have been created [6][7][8][9][10], but are difficult to fully stabilize. In 2012, Chao et al for the first time successfully phase stabilized a ~1 GHz erbium fiber laser [11] based on a linear cavity.…”

Guided wave optics in periodically poled KTP: quadratic nonlinearity and prospects for attosecond jitter characterization

“…© 2009 Optical Society of America OCIS codes: 190.0190, 070.4550, 270.2500, 230.7370, 190.2620 Mode locked lasers can inherently generate pulse trains with very low timing jitter-down to the attosecond (as) level or even lower [1][2][3][4]. As a result, they are excellent candidates for applications where timing accuracy is of extreme importance, such as high speed analog-to-digital conversion and precise synchronization.The low jitter characteristics of various kinds of mode locked lasers have been well documented [5][6][7][8][9]. Although the measured jitter has been very low in all of these studies, theoretical limits are still much lower, indicating that either there are unmodeled additional sources of noise, or the measurement techniques lack enough resolution.…”

“…The low jitter characteristics of various kinds of mode locked lasers have been well documented [5][6][7][8][9]. Although the measured jitter has been very low in all of these studies, theoretical limits are still much lower, indicating that either there are unmodeled additional sources of noise, or the measurement techniques lack enough resolution.…”

Passive optical enhancement of laser-microwave synchronization

“…5,6,[12][13][14] The FabryPerot cavities there are operated at very high laser repetition rates (hundreds of MHz to 1 GHz), so that the incoming laser pulses interfere constructively with the pulse oscillating inside the cavity, thus requiring an interferometric stabilization by means of an active feedback loop. In contrast, the pulse oscillating inside our passive filter is optically depleted before the next laser pulse arrives; hence the scheme is passive and no feedback or lock is needed.…”