Ytterbium Innoslab amplifiers - The high average power approach of ultrafast lasers

Rußbüldt, P.; Weitenberg, Johannes; Sartorius, Th.; Rotarius, G.; Hoffmann, H. D.; Poprawe, Reinhart

doi:10.1063/1.4736774

Cited by 4 publications

(3 citation statements)

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“…Higher pulse energies are feasible at the expense of efficiency or pulse duration. Employing chirped pulse amplification enables pulse energies of ∼10 mJ or even higher [62]. In Fig.…”

Section: Fs-amplifier 1) Design Considerationsmentioning

confidence: 99%

Innoslab Amplifiers

Russbueldt

Hoffmann

Höfer

et al. 2015

IEEE J. Select. Topics Quantum Electron.

115

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The Innoslab amplifier comprises a diode-laser partially end-pumped thin slab crystal and a folded single-pass optical amplification path. While this configuration differs in many respects from other slab amplifiers, it shares characteristics with partially end-pumped rod amplifiers. It combines outstanding thermal management, efficiency, and beam quality in the 100 W to 1 kW power range. In this paper, we review amplifiers for a wide range of operation regimes and laser materials.

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“…Higher pulse energies are feasible at the expense of efficiency or pulse duration. Employing chirped pulse amplification enables pulse energies of ∼10 mJ or even higher [62]. In Fig.…”

Section: Fs-amplifier 1) Design Considerationsmentioning

confidence: 99%

Innoslab Amplifiers

Russbueldt

Hoffmann

Höfer

et al. 2015

IEEE J. Select. Topics Quantum Electron.

115

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“…Therefore, in what follows we focus on this technology as a promising candidate for driving broadband OPA systems scalable to high average and peak powers. Nevertheless, we stress that diode-pumped fiber, cryogenically cooled thick-disk, and slab lasers constitute a highly competitive alternative at high repetition rates and moderate peak power levels, and we kindly refer the reader to recent reviews of these approaches [33,107,[113][114][115][116]. Table 1 summarizes the parameters of some of the bestperforming systems based on Yb-doped fiber, slab, cryogenically cooled thick-disk, and thin-disk technology.…”

Section: Near-1-ps Ytterbium Lasersmentioning

confidence: 99%

“…OPCPA pumped by 1-ps-scale pulses offers octave-spanning light amplification with unprecedented efficiency, not accessible by any other technique known to date. Moreover, for very similar physical reasons, these pulse durations appear to be ideal for efficient frequency conversion of the pump light via low-order harmonic generation and/or frequency mixing [32,33]. Hence, a reliable, cost-effective, and power-scalable source of highenergy 1-ps-scale laser pulses would constitute the ideal basis for exploiting the full potential of OPCPA for ultrashort pulse amplification at a variety of wavelengths.…”

Section: Introductionmentioning

confidence: 99%

Third-Generation Femtosecond Technology

et al. 2016

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Chirped pulse amplification in solid-state lasers is currently the method of choice for producing high-energy ultrashort pulses, having surpassed the performance of dye lasers over 20 years ago. The third generation of femtosecond technology based on short-pulse-pumped optical parametric chirped pulse amplification (OPCPA) holds promise for providing few-cycle pulses with terawatt-scale peak powers and kilowatt-scale-average powers simultaneously, heralding the next wave of attosecond and femtosecond science.OPCPA laser systems pumped by near-1-ps pulses support broadband and efficient amplification of few-cycle pulses due to their unrivaled gain per unit length. This is rooted in the high threshold for dielectric breakdown of the nonlinear crystals for even shorter pump pulse durations. Concomitantly, short pump pulses simplify dispersion management and improve the temporal contrast of the amplified signal.This thesis covers the main experimental and theoretical steps required to design and operate a high-power, high-energy, few-cycle OPCPA. This includes the generation of a broadband, high-contrast, carrier envelope phase (CEP)-stable seed, the practical use of a high-power thin-disk regenerative amplifier, its efficient use for pumping a multi-stage OPCPA chain and compression of the resulting pulses. A theoretical exploration of the concept and its extension to different modes of operation, including widely-tunable, high-power multi-cycle pulse trains, and ultrabroadband waveform synthesis is presented.Finally, a conceptual design of a field synthesizer with multi-terawatt, multi-octave light transients is discussed, which holds promise for extending the photon energy attainable via high harmonic generation to several kiloelectronvolts, nourishing the hope for attosecond spectroscopy at hard-x-ray wavelengths.

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