High-power fibre lasers

Jáuregui, César; Limpert, Jens; Tünnermann, Andreas

doi:10.1038/nphoton.2013.273

Cited by 1,006 publications

(445 citation statements)

References 65 publications

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“…Recently, Yb-based laser technology has rapidly progressed as a powerful competitor to the well-established Ti:Sa technology. The superior thermal properties of Yb-doped active media enable an improvement of several orders of magnitude in terms of average power [7][8][9][10][11]. To overcome the disadvantage of a significantly narrower gain bandwidth, several post-amplification nonlinear pulse compression techniques have been developed [9][10][11][12][13][14].…”

Section: Hz Tomentioning

confidence: 99%

Phase-stable, multi-µJ femtosecond pulses from a repetition-rate tunable Ti:Sa-oscillator-seeded Yb-fiber amplifier

et al. 2016

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400 kHz, which to the best of our knowledge corresponds to the highest phase stability ever demonstrated for highpower, multi-MHz-repetition-rate ultrafast lasers. This system will enable experiments in attosecond physics at unprecedented repetition rates, it offers ideal prerequisites for the generation and field-resolved electro-optical sampling of high-power, broadband infrared pulses, and it is suitable for phase-stable white light generation.

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Section: Hz Tomentioning

confidence: 99%

Phase-stable, multi-µJ femtosecond pulses from a repetition-rate tunable Ti:Sa-oscillator-seeded Yb-fiber amplifier

et al. 2016

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“…10 All of them feature an improved thermal management, which has enabled scaling the average power while preserving an excellent spatial beam quality. In particular, fibre-based amplifiers are well known for their outstanding beam quality, high efficiency and high average powers even in the femtosecond-pulse regime.…”

Section: Introductionmentioning

confidence: 99%

A concept for multiterawatt fibre lasers based on coherent pulse stacking in passive cavities

et al. 2014

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Since the advent of femtosecond lasers, performance improvements have constantly impacted on existing applications and enabled novel applications. However, one performance feature bearing the potential of a quantum leap for high-field applications is still not available: the simultaneous emission of extremely high peak and average powers. Emerging applications such as laser particle acceleration require exactly this performance regime and, therefore, challenge laser technology at large. On the one hand, canonical bulk systems can provide pulse peak powers in the multi-terawatt to petawatt range, while on the other hand, advanced solid-state-laser concepts such as the thin disk, slab or fibre are well known for their high efficiency and their ability to emit high average powers in the kilowatt range with excellent beam quality. In this contribution, a compact laser system capable of simultaneously providing high peak and average powers with high wall-plug efficiency is proposed and analysed. The concept is based on the temporal coherent combination (pulse stacking) of a pulse train emitted from a high-repetition-rate femtosecond laser system in a passive enhancement cavity. Thus, the pulse energy is increased at the cost of the repetition rate while almost preserving the average power. The concept relies on a fast switching element for dumping the enhanced pulse out of the cavity. The switch constitutes the key challenge of our proposal. Addressing this challenge could, for the first time, allow the highly efficient dumping of joule-class pulses at megawatt average power levels and lead to unprecedented laser parameters.

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“…Our results are important since they are the first experimental demonstration of wakefield excitation by a laser pulse structure which is long compared to the plasma period, and which has sufficient control to overcome relativistic saturation; as we have shown, this approach also offers the potential for energy recovery. The ability to deliver the driving laser energy over many plasma periods allows the use of high-repetition-rate laser systems, such as thin-disc [51] or fibre lasers [52], which cannot straightforwardly generate high-energy short laser pulses. These results, together with our earlier numerical analysis of this scheme [21], indicate a route to achieving highly controlled, GeV-scale laser-plasma accelerators operating at multi-kilohertz repetition rates and driven by novel, efficient laser technologies.…”

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confidence: 99%

Excitation and Control of Plasma Wakefields by Multiple Laser Pulses

et al. 2017

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We demonstrate experimentally the resonant excitation of plasma waves by trains of laser pulses. We also take an important first step to achieving an energy recovery plasma accelerator by showing that unused wakefield energy can be removed by an out-of-resonance trailing laser pulse. The measured laser wakefields are found to be in excellent agreement with analytical and numerical models of wakefield excitation in the linear regime. Our results indicate a promising direction for achieving highly controlled, GeV-scale laser-plasma accelerators operating at multi-kilohertz repetition rates. This article was published in Physical Review Letters 119, 044802 on 27 July 2017. DOI: 10.1103/PhysRevLett.119.044802 Copyright 2017 American Physical Society

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High-power fibre lasers

Cited by 1,006 publications

References 65 publications

Phase-stable, multi-µJ femtosecond pulses from a repetition-rate tunable Ti:Sa-oscillator-seeded Yb-fiber amplifier

Phase-stable, multi-µJ femtosecond pulses from a repetition-rate tunable Ti:Sa-oscillator-seeded Yb-fiber amplifier

A concept for multiterawatt fibre lasers based on coherent pulse stacking in passive cavities

Excitation and Control of Plasma Wakefields by Multiple Laser Pulses

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