The Laser Development Department of the LZH will be presenting systems and components from the fields of space lasers, fiber optics, single frequency lasers and ultrashort pulse lasers in North Hall at stand 4601.
The new MOMA prototype model.
Since the first German Pavilion at Photonics West in 2004, it has developed into the largest stand there, presently with 58 exhibitors, and is certainly a crowd puller for visitors from all over the world. The organizers of the most important fair for lasers and photonics are expecting around 20,000 visitors and over 1,200 exhibitors.
Fresh from the labs: The new prototype of the MOMA-APM laser head for the Exomars Mission 2018
An important step in the preparations for looking for traces of organic substances on Mars during the Exomars Mission 2018 has been taken. The fundamental design of a flight model of a diode-pumped, Q-switched laser which emits nanosecond pulses in the UV range at a wavelength of 266 nm in outer space has been developed for the new prototype of the MOMA-APM laser head (Mars Organic Molecule Analyzers Advanced Prototype Model). This laser head, which was developed by the Space Technologies Group, will be used as the excitation source in the laser desorption mass spectrometer of the MOMA system, and it generates ions from organic molecules which cannot be vaporized. The ions can then examined in the MOMA mass spectrometer.
Premier at the fair: A wavelength multiplexer for 633 and 1550 nm
The Fiber Optics Group is presenting the newest fiber components and integrated fiber amplifiers, among which is a coupler for monomode fibers, a pump light combiner, and a fiber cladding mode stripper for the wavelengths between 0.6 and 2.1 µm. For the first time, a wavelength multiplexer consisting of two different fibers will be shown, which combines the wavelengths of 633 nm and 1550 nm. Combining the light fields of different fibers opens new applications, for example in medical technology.
Also, a highly integrated, ytterbium-doped fiber amplifier will be shown, which was developed for the detection of gravitational waves using interferometry, and which has a line width of only a few kilohertz, an emission wavelength of 1064 nm and an average output of over 200 W. Further application fields for this prototype are coherent beam combinations, laser metrology, and investigations on quantum optical phenomena, and nonlinear optics.
Infrared laser with a wavelength of 1.95 µm for the microprocessing of Plastics
A result of the EU project IMPROV (Innovative Mid-infrared high Power source for Resonant ablation of Organic photoVoltaic devices; Grant Agreement No. 257893) will be presented by the Ultrafast Photonics Group, the third prototype of the IMPROV laser with a wavelength of 1.95 µm. By using very narrow band gratings, the laser produces laser pulse lengths between 250 and 550 ps, and has a high quality spectrum. The system is an excellent laser source for downstream fiber amplifiers, and the pulses can be amplified without pre-time-stretching in the fiber. First experiments show that energy in the µJ range could be reached with a single fiber amplifier. Based on polarization-maintaining fibers, the laser output is stable, even when there are external influences, such as temperature fluctuations. Due to the pulse parameters, this laser system is excellent for nonlinear frequency conversion in the mid-infrared spectral range. Laser pulses in this spectral range can be used to selectively process organic layers, for example for organic photovoltaic solar cells.
Fiber lasers for a free fall
The Single-Frequency Lasers Group is presenting a 2 µm thulium fiber laser system, which was especially developed for use under micro-gravitational conditions in a fall tower, and which must withstand continuous dropping and impact from a height of 100 m. As commissioned by the Center of Applied Space Technology and Microgravity (ZARM) in Bremen, the LZH has developed this system for the PRIMUS-II project for the investigation of the equivalence principle. The equivalence principle dates back to Galileo Galilei and states that all physical bodies, independent of their chemical composition, size, form and mass, fall in the same manner in a vacuum, if other forces are not present.
LZH-Spinoff neoLase GmbH
A further exhibitor at the German Pavilion is the neoLase GmbH, a spinoff from the LZH, which will be presenting their MOPA laser system, a highly brilliant pico- and nano-second laser and amplifier modules.Contact:
Lena Bennefeld | Laser Zentrum Hannover e.V.
COMPAMED 2016 connected medical devices and people
23.11.2016 | IVAM Fachverband für Mikrotechnik
Successfully transferring Industrie 4.0 into reality
21.11.2016 | Deutsches Forschungszentrum für Künstliche Intelligenz GmbH, DFKI
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
08.12.2016 | Life Sciences
08.12.2016 | Physics and Astronomy
08.12.2016 | Materials Sciences