TRUMPF Scientific Lasers GmbH Co. KG

München, Germany

TRUMPF Scientific Lasers GmbH Co. KG

München, Germany
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Nubbemeyer T.,Ludwig Maximilians University of Munich | Kaumanns M.,Ludwig Maximilians University of Munich | Ueffing M.,Ludwig Maximilians University of Munich | Gorjan M.,Spectra - Physics | And 13 more authors.
Optics Letters | Year: 2017

We report on a laser system based on thin-disk technology and chirped pulse amplification, providing output pulse energies of 200 mJ at a 5 kHz repetition rate. The amplifier contains a ring-type cavity and two thin Yb: YAG disks, each pumped by diode laser systems providing up to 3.5 kW power at a 969 nm wavelength. The average output power of more than 1 kW is delivered in an excellent output beam characterized by M2 =1.1. The output pulses are compressed to 1.1 ps at full power with a pair of dielectric gratings. © 2017 Optical Society of America.


Liu X.,Light Technology | Liu X.,Institute of Microstructure Technology IMT | Lebedkin S.,Institute of Nanotechnology INT | Besser H.,Karlsruhe Institute of Technology | And 13 more authors.
ACS Nano | Year: 2015

Organic semiconductor distributed feedback (DFB) lasers are of interest as external or chip-integrated excitation sources in the visible spectral range for miniaturized Raman-on-chip biomolecular detection systems. However, the inherently limited excitation power of such lasers as well as oftentimes low analyte concentrations requires efficient Raman detection schemes. We present an approach using surface-enhanced Raman scattering (SERS) substrates, which has the potential to significantly improve the sensitivity of on-chip Raman detection systems. Instead of lithographically fabricated Au/Ag-coated periodic nanostructures on Si/SiO2 wafers, which can provide large SERS enhancements but are expensive and time-consuming to fabricate, we use low-cost and large-area SERS substrates made via laser-assisted nanoreplication. These substrates comprise gold-coated cyclic olefin copolymer (COC) nanopillar arrays, which show an estimated SERS enhancement factor of up to ∼107. The effect of the nanopillar diameter (60-260 nm) and interpillar spacing (10-190 nm) on the local electromagnetic field enhancement is studied by finite-difference-time-domain (FDTD) modeling. The favorable SERS detection capability of this setup is verified by using rhodamine 6G and adenosine as analytes and an organic semiconductor DFB laser with an emission wavelength of 631.4 nm as the external fiber-coupled excitation source. © 2014 American Chemical Society.


Prinz S.,TRUMPF Scientific Lasers GmbH Co. KG | Prinz S.,TU Munich | Hafner M.,TRUMPF Scientific Lasers GmbH Co. KG | Schultze M.,TRUMPF Scientific Lasers GmbH Co. KG | And 6 more authors.
Optics Express | Year: 2014

Short-pulse-pumped optical parametric chirped pulse amplification (OPCPA) requires a precise temporal overlap of the interacting pulses in the nonlinear crystal to achieve stable performance. We present active synchronization of the ps-pump pulses and the broadband seed pulses used in an OPCPA system with a residual timing jitter below 2 fs. This unprecedented stability was achieved utilizing optical parametric amplification to generate the error signal, requiring less than 4 pJ of seedand 10 μJ of pump-pulse-energy in the optical setup. The synchronization system shows excellent long-term performance and can be easily implemented in almost any OPCPA system. © 2014 Optical Society of America.


Schneider W.,Ludwig Maximilians University of Munich | Schneider W.,Max Planck Institute of Quantum Optics | Ryabov A.,Ludwig Maximilians University of Munich | Ryabov A.,Max Planck Institute of Quantum Optics | And 7 more authors.
Optics Letters | Year: 2014

Yb:YAG thin-disk lasers offer extraordinary output power, but systems delivering femtosecond pulses at a repetition rate of hundreds of kilohertz are scarce, even though this regime is ideal for ultrafast electron diffraction, coincidence imaging, attosecond science, and terahertz (THz) spectroscopy. Here we describe a regenerative Yb:YAG amplifier based on thin-disk technology, producing 800-fs pulses at a repetition rate adjustable between 50 and 400 kHz. The key design elements are a short regenerative cavity and fast-switching Pockels cell. The average output power is 130 Wbefore the compressor and 100 W after compression, which at 300 kHz corresponds to pulse energies of 430 and 330 μJ, respectively. This is sufficient for a wide range of nonlinear conversions and broadening/compression schemes. As a first application, we use optical rectification in LiNbO3 to produce 30-nJ single-cycle THz pulses with 6W pump power. The electric field exceeds 10 kV/cm at acentral frequency of 0.3 THz, suitable for driving structural dynamics or controlling electron beams. © 2014 Optical Society of America.


Prinz S.,TRUMPF Scientific Lasers GmbH Co. KG | Prinz S.,TU Munich | Haefner M.,TRUMPF Scientific Lasers GmbH Co. KG | Teisset C.Y.,TRUMPF Scientific Lasers GmbH Co. KG | And 13 more authors.
Optics Express | Year: 2015

We report on a CEP-stable OPCPA system reaching multi-GW peak powers at 300 kHz repetition rate. It delivers 15 W of average power, over 50 μJ of compressed pulse energy and a pulse duration below 6 fs. By implementing an additional pump-seed-synchronization, the output parameters are stabilized over hours with power fluctuations of less than 1.5%. © 2015 Optical Society of America.


Michel K.,TRUMPF Scientific Lasers GmbH Co. KG | Klingebiel S.,TRUMPF Scientific Lasers GmbH Co. KG | Schultze M.,TRUMPF Scientific Lasers GmbH Co. KG | Tesseit C.Y.,TRUMPF Scientific Lasers GmbH Co. KG | And 5 more authors.
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2016

We report on the latest developments at TRUMPF Scientific Lasers in the field of ultra-short pulse lasers with highest output energies and powers. All systems are based on the mature and industrialized thin-disk technology of TRUMPF. Thin Yb:YAG disks provide a reliable and efficient solution for power and energy scaling to Joule-and kW-class picosecond laser systems. Due to its efficient one dimensional heat removal, the thin-disk exhibits low distortions and thermal lensing even when pumped under extremely high pump power densities of 10kW/cm. Currently TRUMPF Scientific Lasers develops regenerative amplifiers with highest average powers, optical parametric amplifiers and synchronization schemes. The first few-ps kHz multi-mJ thin-disk regenerative amplifier based on the TRUMPF thindisk technology was developed at the LMU Munich in 20081. Since the average power and energy have continuously been increased, reaching more than 300W (10kHz repetition rate) and 200mJ (1kHz repetition rate) at pulse durations below 2ps. First experiments have shown that the current thin-disk technology supports ultra-short pulse laser solutions >1kW of average power. Based on few-picosecond thin-disk regenerative amplifiers few-cycle optical parametric chirped pulse amplifiers (OPCPA) can be realized. These systems have proven to be the only method for scaling few-cycle pulses to the multi-mJ energy level. OPA based few-cycle systems will allow for many applications such as attosecond spectroscopy, THz spectroscopy and imaging, laser wake field acceleration, table-Top few-fs accelerators and laser-driven coherent X-ray undulator sources. Furthermore, high-energy picosecond sources can directly be used for a variety of applications such as X-ray generation or in atmospheric research. © 2016 SPIE.


Novak J.,Academy of Sciences of the Czech Republic | Novak J.,Czech Technical University | Bakule P.,Academy of Sciences of the Czech Republic | Green J.T.,Academy of Sciences of the Czech Republic | And 7 more authors.
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2013

We report on the initial performance of the first ELI-Beamlines high repetition rate, thin disk-based OPCPA pump laser. The laser is designed to produce a pulse train with pulse energies of 10-30 mJ at a 1 kHz repetition rate and is intended to be used as a pump source for an OPCPA amplifier. While the preliminary tests and analysis show that these target energies are well within the capabilities of the equipment available, the output energies of the current design are limited by self-phase modulation. We discuss the sources of this modulation and a new amplifier design to reduce these nonlinear effects. The efficiency of the second harmonic conversion of the thin disk amplifier output is measured to be higher than 65% and scaling to higher energies is discussed. © 2013 SPIE.


Gottwald T.,Trumpf Laser GmbH Co. KG | Stolzenburg C.,Trumpf Laser GmbH Co. KG | Bauer D.,Trumpf Laser GmbH Co. KG | Kleinbauer J.,Trumpf Laser GmbH Co. KG | And 5 more authors.
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2012

This paper highlights the latest advances of disk laser technology at Trumpf. The disk laser combines unique properties, especially high output brilliance (at the lowest pump brilliance requirements of any high power platform), power scalability and broad applicability from cw to ps systems. In the new generation of cw disk lasers, 6kW are extracted from one disk in an industrial product at beam qualities suitable for welding. Moreover, scaling laser power to 10 kW per disk and resonators with higher brilliance are discussed. These advances are enabled by a combination of power scaling and increase of optical-to-optical efficiency. In addition, applications of the disk laser principle to pulsed operation, from ns to ps duration, at infrared and green wavelengths are discussed. Finally, an outlook on the capabilities of disk lasers towards highest cw power and ultra-high peak powers of petawatts and beyond is given. © 2012 SPIE.


Houard A.,ENSTA ParisTech | Jukna V.,ENSTA ParisTech | Point G.,ENSTA ParisTech | Andre Y.-B.,ENSTA ParisTech | And 5 more authors.
Optics Express | Year: 2016

We study the propagation of intense, high repetition rate laser pulses of picosecond duration at 1.03 μm central wavelength through air. Evidence of filamentation is obtained from measurements of the beam profile as a function of distance, from photoemission imaging and from spatially resolved sonometric recordings. Good agreement is found with numerical simulations. Simulations reveal an important self shortening of the pulse duration, suggesting that laser pulses with few optical cycles could be obtained via double filamentation. An important lowering of the voltage required to induce guided electric discharges between charged electrodes is measured at high laser pulse repetition rate. © 2016 Optical Society of America.


Schultze M.,TRUMPF Scientific Lasers GmbH Co. KG | Prinz S.,TRUMPF Scientific Lasers GmbH Co. KG | Prinz S.,TU Munich | Haefner M.,TRUMPF Scientific Lasers GmbH Co. KG | And 4 more authors.
CLEO: Science and Innovations, CLEO-SI 2015 | Year: 2015

An OPCPA system with 15 W of average power at 300 kHz repetition rate generating CEP-stable few-cycle pulses is presented. The system exhibits pulse durations below 6 fs, a peak power of 4.5 GW and an excellent long-term performance over hours of operation with power fluctuations of less than 1.5%. © OSA 2015.

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