Kerr-Lens Mode-Locked 2-μm Thin-Disk Lasers

Zhang, Jinwei; Mak, Ka Fai; Pronin, Oleg

doi:10.1109/jstqe.2018.2814780

Cited by 21 publications

(24 citation statements)

References 57 publications

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“…1. The initial pulses are produced by a Kerr-lens mode-locked Ho:YAG thin-disk oscillator that operates at a repetition rate of 77 MHz [25]. The oscillator delivers 260 fs pulses at 2.1 μm with an average power of 18 W. A temporal self-compression down to 15 fs [ Fig.…”

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confidence: 99%

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Intra-pulse difference-frequency generation of mid-infrared (27–20 μm) by random quasi-phase-matching

et al. 2019

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We present a mid-infrared (MIR) source based on intrapulse difference-frequency generation under the random quasi-phase-matching condition. The scheme enables the use of non-birefringent materials whose crystal orientations are not perfectly and periodically poled, widening the choice of media for nonlinear frequency conversion. With a 2 μm driving source based on a Ho:YAG thin-disk laser, together with a polycrystalline ZnSe element, an octavespanning MIR continuum (2.7-20 μm) was generated. At over 20 mW, the average power is comparable to regular phase-matching in birefringent crystals. A 1 μm laser system based on a Yb:YAG thin-disk laser was also tested as a driving source in this scheme. The new approach provides a simplified way for generating coherent MIR radiation with an ultrabroad bandwidth at reasonable efficiency.

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“…Another promising candidate is ZnS, which has very similar properties as ZnSe, except for its narrower transparency window (0.55-15 μm). Both polycrystalline materials are used in this Letter to generate MIR radiation via RQPM with our recently developed femtosecond Ho:YAG thin-disk laser source [12,25].…”

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Intra-pulse difference-frequency generation of mid-infrared (27–20 μm) by random quasi-phase-matching

et al. 2019

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“…Finally, extending the wavelength coverage available from TDLs to longer wavelengths also represents a very promising research direction for ultrafast thin-disk oscillators and amplifiers, which would expand the application possibilities of these sources even further. Recently, a first Kerr-lens modelocked oscillator based on Ho:YAG has been demonstrated with 25 W, 270 fs [59] and further reports on CW operation with record-high power (50 W for Ho:YAG and 24 W for Tm: YAG, [60]) illustrate the potential of this emerging area.…”

Section: Resultsmentioning

confidence: 99%

The amazing progress of high-power ultrafast thin-disk lasers

Saraceno¹,

Sutter²,

Metzger³

et al. 2019

J. Eur. Opt. Soc.-Rapid Publ.

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Ultrafast lasers continue to be at the forefront of many scientific breakthroughs and technological achievements and progress in the performance of these systems continue to open doors in many new and exciting interdisciplinary fields. In particular, in the last decade, the average power of ultrafast lasers has seen a significant increase, opening up exciting new perspectives. Among the different technologies that have shaped these advances, thin-disk lasers have generated particularly spectacular breakthroughs. We review here the latest state-of-the-art of the technology and highlight new application fields of these cutting-edge laser systems.

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“…In the field of ultrafast oscillators, much work has been done to push the emission toward longer wavelengths. Laser oscillator and amplifier systems have been developed utilizing fiber, bulk, and thin disk architectures based on holmium [22,23], thulium [24][25][26] or chromium [27,28] doped gain-media. Such advances now mean that it is possible to generate pulses with subpicosecond, Watt-level powers, in the range of 1.9-2.5 μm.…”

Section: Introductionmentioning

confidence: 99%

Multi-octave spanning, Watt-level ultrafast mid-infrared source

Butler

Lilienfein

et al. 2019

J. Phys. Photonics

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We present a source of brilliant mid-infrared radiation, seamlessly covering the wavelength range between 1.33 and 18 μm (7500-555 cm −1 ) with three channels, employing broadband nonlinear conversion processes driven by the output of a thulium-fiber laser system. The high-average-power femtosecond frontend delivers a 50 MHz train of 250 fs pulses spectrally centered at 1.96 μm. The three parallel channels employ soliton self-compression in a fused-silica fiber, supercontinuum generation in a ZBLAN fiber, and difference-frequency generation in GaSe driven by soliton selfcompressed pulses. The total output enables spectral coverage from 1.33 to 2.4 μm, from 2.4 to 5.2 μm, and from 5.2 to 18 μm with 4.5 W, 0.22 W and 0.5 W, respectively. This spatially coherent source with a footprint of less than 4 m 2 exceeds the brilliance of 3rd-generation synchrotrons by more than three orders of magnitude over 90% of the bandwidth.

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Kerr-Lens Mode-Locked 2-μm Thin-Disk Lasers

Cited by 21 publications

References 57 publications

Intra-pulse difference-frequency generation of mid-infrared (27–20 μm) by random quasi-phase-matching

Intra-pulse difference-frequency generation of mid-infrared (27–20 μm) by random quasi-phase-matching

The amazing progress of high-power ultrafast thin-disk lasers

Multi-octave spanning, Watt-level ultrafast mid-infrared source

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