Gigahertz repetition rate, sub-femtosecond timing jitter optical pulse train directly generated from a mode-locked Yb:KYW laser

Optics Letters
Hee-Won YangJungwon Kim

Abstract

We show that a 1.13 GHz repetition rate optical pulse train with 0.70 fs high-frequency timing jitter (integration bandwidth of 17.5 kHz-10 MHz, where the measurement instrument-limited noise floor contributes 0.41 fs in 10 MHz bandwidth) can be directly generated from a free-running, single-mode diode-pumped Yb:KYW laser mode-locked by single-wall carbon nanotube-coated mirrors. To our knowledge, this is the lowest-timing-jitter optical pulse train with gigahertz repetition rate ever measured. If this pulse train is used for direct sampling of 565 MHz signals (Nyquist frequency of the pulse train), the jitter level demonstrated would correspond to the projected effective-number-of-bit of 17.8, which is much higher than the thermal noise limit of 50 Ω load resistance (~14 bits).

References

Dec 19, 2003·Optics Letters·John B SchlagerJun Ye
Jan 12, 2008·Optics Letters·N V KuleshovG Huber
Mar 5, 2007·Optics Express·George C Valley
Apr 15, 2010·Optics Express·Rüdiger Paschotta
Oct 12, 2010·Applied Optics·Hyunil ByunFranz X Kärtner
Mar 16, 2011·Optics Letters·Lianping HouA Catrina Bryce
Nov 18, 2011·Optics Letters·Tae Keun KimJungwon Kim
Mar 16, 2012·Optics Express·Anatol KhiloFranz X Kärtner
May 15, 2013·Optics Express·Caroline Lecaplain, Philippe Grelu

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