Performance Scaling of Ultrafast Laser Systems by Coherent Addition of Femtosecond Pulses

Limpert, Jens; Klenke, Arno; Kienel, Marco; Breitkopf, Sven; Eidam, Tino; Hädrich, Steffen; Jáuregui, César; Tünnermann, Andreas

doi:10.1109/jstqe.2014.2304135

Cited by 36 publications

(22 citation statements)

References 42 publications

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“…The concept of coherent combination of multiple lasers or amplifiers allows for further average power and pulse energy scaling simply by increasing the number of amplifiers . These modern femtosecond lasers have come of age and are described in a greater detail in the following articles . However, due to the limited gain bandwidth of Yb, the pulse duration of these systems are typically limited to ∼ 1 ps for Yb:YAG down to ∼ 100 fs for Yb:glass lasers.…”

Section: Introductionmentioning

confidence: 99%

High Average Power Near‐Infrared Few‐Cycle Lasers

Rothhardt

Hädrich

Delagnes

et al. 2017

Laser & Photonics Reviews

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Ultra-short laser pulses with only a few optical cycles duration have gained increasing importance during the recent decade and are currently employed in many laboratories worldwide. In addition, modern laser technology nowadays can provide few-cycle pulses at very high average power which advances established studies and opens exciting novel research opportunities. In this paper, the two complementary approaches for providing few-cycle pulses at high average power, namely optical parametric amplification and nonlinear pulse compression, are reviewed and compared. In addition, their limitations and future scaling potential are discussed. Furthermore, selected applications particularly taking advantage of the high average power and high repetition rate are presented.

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Section: Introductionmentioning

confidence: 99%

High Average Power Near‐Infrared Few‐Cycle Lasers

Rothhardt

Hädrich

Delagnes

et al. 2017

Laser & Photonics Reviews

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“…The locked system is characterised as having a combination efficiency of 96% with an average output power of 4.86 W. The combining efficiency is defined as [7]: FIGURE 2. The beam profiles at the right show the simulation results of two perfectly spherical wavefronts with different radii of curvature combining to produce a beam with a polarisation state varying radially outwards.…”

Section: Coherent Combination Of Mismatched Photonic Crystal Fibresmentioning

confidence: 99%

The coherent combination of fibre lasers – Towards realistic applications

Tudor¹,

Corner²,

Walczak³

2017

AIP Conference Proceedings

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Abstract.To drive a laser-plasma wakefield, high peak-power laser pulses are required. For useful accelerator applications, it is also necessary to have driving lasers with high efficiency, repetition rates, and average power. The coherent combination of Ytterbium-doped fibre laser amplifiers is a promising potential solution, and previous work has demonstrated the successful combination of near-identical ultrafast fibre lasers. We report here the combination of significantly mismatched Ytterbium-doped photonic crystal fibre amplifiers with a combined efficiency of 96%, while the locked power output remained stable for 6 hours. The combined output of the system had a total gain of 12 dB, with no detrimental effect on the compressed pulse width observed.

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“…For example, single rod fiber technology is restricted in power, and in particular, in single pulse energy. However, this problem could be overcome with coherent combining [32]. Presently, Innoslab technology, as used in this work, is capable of high powers, but the single pulse energy is limited to tens of millijoules.…”

Section: Power Scaling Limitsmentioning

confidence: 99%

An optical parametric chirped-pulse amplifier for seeding high repetition rate free-electron lasers

et al. 2015

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High repetition rate free-electron lasers (FEL), producing highly intense extreme ultraviolet and x-ray pulses, require new high power tunable femtosecond lasers for FEL seeding and FEL pump-probe experiments. A tunable, 112 W (burst mode) optical parametric chirped-pulse amplifier (OPCPA) is demonstrated with center frequencies ranging from 720-900 nm, pulse energies up to 1.12 mJ and a pulse duration of 30 fs at a repetition rate of 100 kHz. Since the power scalability of this OPCPA is limited by the OPCPA-pump amplifier, we also demonstrate a 6.7-13.7 kW (burst mode) thin-disk OPCPA-pump amplifier, increasing the possible OPCPA output power to many hundreds of watts. Furthermore, third and fourth harmonic generation experiments are performed and the results are used to simulate a seeded FEL with high-gain harmonic generation.

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Performance Scaling of Ultrafast Laser Systems by Coherent Addition of Femtosecond Pulses

Cited by 36 publications

References 42 publications

High Average Power Near‐Infrared Few‐Cycle Lasers

High Average Power Near‐Infrared Few‐Cycle Lasers

The coherent combination of fibre lasers – Towards realistic applications

An optical parametric chirped-pulse amplifier for seeding high repetition rate free-electron lasers

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