High efficiency, multi-mJ, sub 10 fs, optical parametric amplifier at 3 kHz

Fattahi, Hanieh; Skrobol, Christoph; Ueffing, Moritz; Deng, Yunpei; Schwarz, Alexander; Kida, Yuichiro; Pervak, Vladimir; Metzger, Thomas; Major, Zsuzsanna; Krausz, Ferenc

doi:10.1364/cleo_si.2012.cth1n.6

Cited by 10 publications

(14 citation statements)

References 14 publications

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“…For pump pulses with picosecond duration, the seed pulse was typically chosen to fit. Re-using of the pump was previously reported by focusing the amplified signal and the depleted pump into an additional nonlinear crystal [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Multipass OPCPA system at 100 kHz pumped by a CPA-free solid-state amplifier

et al. 2016

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We present a compact few-cycle 100 kHz OPCPA system pumped by a CPA-free picosecond Nd:YVO₄ solid-state amplifier with all-optical synchronization to an ultra-broadband Ti:sapphire oscillator. This pump approach shows an exceptional conversion rate into the second harmonic of almost 78%. Efficient parametric amplification was realized by a two stage double-pass scheme with following chirped mirror compressor. The amount of superfluorescence was measured by an optical cross-correlation. Pulses with a duration of 8.7 fs at energies of 18 µJ are demonstrated. Due to the peak power of 1.26 GW, this simple OPCPA approach forms an ideal high repetition rate driving source for high-order harmonic generation.

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Section: Introductionmentioning

confidence: 99%

Multipass OPCPA system at 100 kHz pumped by a CPA-free solid-state amplifier

et al. 2016

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“…Optical parametric chirped pulse amplification (OPCPA) represents the most promising route to simultaneously achieving high pulse energies and large amplification bandwidths supporting intense, few-cycle pulses [4]. To push the frontiers of ultrafast pulse generation, pump lasers delivering sub-10 ps, highenergy pulses with near diffraction limited beam quality, ideally at repetition rates in the kHz to MHz range, are required [2,5].…”

Section: Introductionmentioning

confidence: 99%

Decoupling chaotic amplification and nonlinear phase in high-energy thin-disk amplifiers for stable OPCPA pumping

Fattahi¹,

Schwarz²,

Geng³

et al. 2014

Opt. Express

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The dynamics of chirped pulse amplification in thin-disk regenerative amplifiers relevant to the pumping of optical parametric chirp pulse amplification systems are described. It is shown that the suitability for reproducible pumping of subsequent nonlinear processes requires a balance between the demands of avoiding chaotic pulse train dynamics and providing a reproducible spectral phase. We describe measures that may be taken to ensure that a laser system operates in the desired stable regime.

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“…Ultrafast optical parametric chirped pulse amplifiers (OPCPA) [11] have hitherto proven to be the only method for scaling few-cycle pulses to the multi-mJ energy level [12,13]. In particular <2 ps short-pulse-pumped OPCPAs [10] allow for highly efficient and ultrabroadband laser sources [14,15] and exhibit the following key advantages: The reduced stretching ratio simplifies the dispersion management and enables the stretching of the seed pulses by a few mm short glass plate and recompression by a few highly efficient chirped multilayer mirrors [16]. The increased damage threshold for transparent optical materials for pulse durations <10 ps [16] permits higher pump intensities, hence the use of a few mm thin OPA crystals resulting in ultrabroadband amplification due to reduced phase matching issues.…”

Section: Introductionmentioning

confidence: 99%

“…The increased damage threshold for transparent optical materials for pulse durations <10 ps [16] permits higher pump intensities, hence the use of a few mm thin OPA crystals resulting in ultrabroadband amplification due to reduced phase matching issues. The <2 ps short-pulse-pump approach and the resulting applicable high intensities result in large pump-to-signal conversion efficiencies >30 % [14]. Furthermore the ~1 ps short pump window leads to an inherently excellent temporal pulse contrast.…”

Section: Introductionmentioning

confidence: 99%