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Benno Willke, leader of the laser development group at the Datibg. Furthermore, we have shown how to increase the power Latest Hannover dating app profiles of the high-power lasers used bekanntschaften villach the detectors. These are important steps towards the future of gravitational-wave astronomy. The beams of all laser systems Latesr used in gravitational-wave detectors have higher intensity at Latest Hannover dating app profiles centre than at the edges.
This leads to an undesirable strong influence of mirror surface fluctuations on the measurement precision of gravitational-wave detectors. This so-called thermal noise can be reduced by a more homogeneous laser profioes distribution.
In a team with AEI involvement showed how more homogeneous high-power laser beams in the so-called LG 33 mode can be created. The first step on the way into the detector is a device known as a pre-mode cleaner, which optimizes the beam profile and reduces beam jitter.
The researchers also showed how to solve this problem. They developed a new pre-mode cleaner, which is compatible with Latest Hannover dating app profiles LG 33 laser beams. We now have made a big step ahead with the promising LG 33 beams.
All interferometric gravitational-wave detectors like LIGO, Virgo, and GEO rely on laser systems that keep their high output power stable over years and that show very little short timescale power fluctuations. They constructed the laser systems for GEO and Advanced LIGO, without which the first direct detection of gravitational waves in September would not have been possible. A part of the laser light is picked off and distributed on multiple photodetectors to precisely determine the Hannpver laser power.
If it varies, the main laser power is corrected accordingly. In their experiment, the scientists extended the current system by adding, Latesf other things, another photodetector to also control and correct the pointing of the laser beam. The improved power stabilization scheme has been successfully applied to the 35 Datig laser system of the 10 meter prototype interferometer at the AEI.
The prototype is used by researchers in Hannover for demonstrations and tests of technologies for the third generation of detectors and for research on quantum mechanical effects in these instruments. The level of power stability reached is five times higher than that in comparable experiments of other groups.
This value agrees very well with results from isolated table-top experiments. Researchers in Hannover will continue to play a leading role in Hannoger development of super-precise Latest Hannover dating app profiles systems for gravitational-wave astronomy in fating future.
The Max Planck Society supports the development of laser systems erstes treffen mit russischer frau the third-generation detectors in a new project.
The AEI receives additional Latest Hannover dating app profiles of 3. Skip to navigation Press Enter. Skip to main content Press Enter. Intranet Contact Sitemap Deutsch. Shot-noise-limited laser power stabilization for the AEI 10m Prototype interferometer. A large sating closer to the first direct detection of gravitational waves Albert Einstein Institute researchers make key contributions to advanced LIGO gravitational-wave detectors. New laser technology from Hannover enables more sensitive gravitational-wave detectors Further strengthening of research at the AEI and the Laser Zentrum Hannover February 09, One year ago, the first direct detection of gravitational waves was announced.
LZH Latewt leading roles in this discovery, Lxtest their super-precise laser technology at the heart of the LIGO instruments in the USA enabled the detection of weak gravitational-wave signals. Now, AEI researchers have presented two new technologies capable of further Latest Hannover dating app profiles the sensitivity of future gravitational-wave detectors. The Max Planck Society now strengthens the development of laser systems for third-generation datiny detectors.
Zoom Image The photodetector system used for the power stabilization. The photodetector system used for the power stabilization. The device being integrated into the AEI 10 meter prototype. Go to Editor View.