Thulium-doped fiber chirped-pulse amplification system with 2 GW of peak power

Gaida, Christian; Gebhardt, Martin; Stutzki, Fabian; Jáuregui, César; Limpert, Jens; Tünnermann, Andreas

doi:10.1364/ol.41.004130

Cited by 68 publications

(36 citation statements)

References 16 publications

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“…High average power OPCPA systems, delivering 6 W of average power have been demonstrated in this spectral region already but also uncovered thermo‐optical limitations in further power scaling. As an alternative Tm‐ or Ho‐ based lasers in combination with nonlinear compression will provide energetic few‐cycle pulses with average powers approaching the 100 W‐level soon and can be employed as pump lasers for longer mid‐IR wavelength systems based on parametric frequency conversion. A detailed overview on high average power few‐cycle lasers in the mid‐IR will be provided in a separate review article soon.…”

Section: Discussionmentioning

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: Discussionmentioning

confidence: 99%

High Average Power Near‐Infrared Few‐Cycle Lasers

Rothhardt

Hädrich

Delagnes

et al. 2017

Laser & Photonics Reviews

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“…Actually, very strong amplification and broadband gain spectrum can be achieved with thulium-doped fibers. Highly developed fiber lasers, capable of generating several hundred micro joules [25,26] and more than tens of gigawatt peak power, have been achieved using external pulse compression [27]. However, millijoule energy level is still highly challenging for fiber lasers.…”

Section: Introductionmentioning

confidence: 99%

Millijoule femtosecond pulses at 1937 nm from a diode-pumped ring cavity Tm:YAP regenerative amplifier

et al. 2018

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We present an infrared source operating at 1937 nm center wavelength capable of generating 1.35 mJ pulse energies with 1 kHz repetition rate and 2 GW peak power based on a diode-pumped Tm:YAP regenerative amplifier. The obtained pulses after 45 round trips have been compressed down to 360 fs. Using only a small portion (15 µJ) of the output of the system we managed to generate a white light continuum in a 3 mm YAG window that exhibits the viability of the system as a suitable candidate for a pumping source of a mid-infrared optical parametric amplifier.

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“…The amplification to high peak powers is challenging due to the high intensities found in the fiber core that, together with the long interaction length, promote the onset of limiting nonlinear effects. A pulse-peak of nearly 2 GW with an energy around 570 µJ has been reported in 2016 with a Tm-based fiber chirped pulse amplification (CPA) system [2]. Although having numerous advantages, the fibered architectures do not currently make it possible to easily obtain an energy higher than 1 mJ.…”

Section: Introductionmentioning

confidence: 99%

Highly efficient mJ level laser amplifiers at 2 microns for frequency comb spectroscopy

Vidal¹,

Jolly²,

Hébert

et al. 2019

International Conference on Space Optics — ICSO 2018

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Over the last decade, frequency comb spectroscopy have led to significant developments in view of the identification of varied species and of the understanding of the structure of matter. Highly efficient amplification of frequency comb femtosecond oscillators in the high pulse energies regime should allow future applications using this approach to Lidar-type measurements. We report on the millijoule level design of femtosecond amplifiers near 2 µm wavelength having a great optical efficiency and compactness in order to be carrier in satellites. In addition to space applications, laser systems at 2 µm become more and more popular because they offer elegant solutions to generate ultra-broad band super-continuum in the mid-infrared and for material processing. Our study helps to compare the optical performance of Tm:YAG, Tm:YAP and Tm:YLF crystals as active media, for designing ultrashort pulse regenerative amplifiers with a high gain and wall-plug efficiencies up to 10%. We will present our approach to ensure the conservation of the initial phase shift between the envelope and the carrier of pulses during amplification. We primarily discuss an innovative model which proposes a gradual path towards the optimization of any regenerative amplifier using crystalline thulium-based, end-pumped doped rods. This also involves the analysis of sizing criteria based on the assumption of rod-based active media, including the doping content, the length of the rod and the beam size inside.

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Thulium-doped fiber chirped-pulse amplification system with 2 GW of peak power

Cited by 68 publications

References 16 publications

High Average Power Near‐Infrared Few‐Cycle Lasers

High Average Power Near‐Infrared Few‐Cycle Lasers

Millijoule femtosecond pulses at 1937 nm from a diode-pumped ring cavity Tm:YAP regenerative amplifier

Highly efficient mJ level laser amplifiers at 2 microns for frequency comb spectroscopy

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