Laser interferometer gravitational wave detectors
Gravitational-Wave Science with the Laser Interferometer Gravitational-Wave Observatory
... LIGO detectors and converts it into gravitational-wave ...for gravitational waves from sub-solar mass black hole binary ...direct gravitational-wave ...a gravitational- ...
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Homodyne detection for laser-interferometric gravitational wave detectors
... The spurious higher order spatial modes in the output beam are detrimental to inter- ferometer performance as they generally produce no useful signal, but contribute additional photon shot noise, increase the power that ...
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The Laser Interferometer Gravitational-wave Observatory Scientific Data Archive
... to gravitational waves: the geographic separation of the two sites reduces the likelihood that coincident signals in the two detectors are due to something other than gravitational- waves; ...
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Enhancing the sensitivity of future laser-interferometric gravitational wave detectors
... a laser enters the interferometer as it would for a position-meter, and accumulates a phase shift propor- tional to the propagation and the signal from any gravitational waves or disturbances in the ...
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First targeted search for gravitational-wave bursts from core-collapse supernovae in data of first-generation laser interferometer detectors
... We do not show the efficiencies for the multidimensional simulation CCSN waveforms for SN 2011dh, as the detec- tion efficiency was negligible in this case. This is due to the fact that the relative orientation of the G1 ...
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First targeted search for gravitational-wave bursts from core-collapse supernovae in data of first-generation laser interferometer detectors
... Figure 6 presents model exclusion confidence plots for four of the phenomenological waveform models. These plots are based on the measured efficiencies for SN 2007gr and SN 2011dh, but assume the detector noise spectra ...
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First Targeted Search for Gravitational-Wave Bursts from Core-Collapse Supernovae in Data of First-Generation Laser Interferometer Detectors
... We do not show the efficiencies for the multidimensional simulation CCSN waveforms for SN 2011dh, as the detec- tion efficiency was negligible in this case. This is due to the fact that the relative orientation of the G1 ...
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Noise Cancellation for Gravitational Wave Detectors
... The laser beam profile required for resonance in the input mode cleaner is much different from what is required for the full ...the interferometer, it would be much easier for a higher-order transverse mode ...
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Results of the first coincident observations by two laser-interferometric gravitational wave detectors
... factor). Interferometer prototypes have been markedly improved since 1989, and would probably come very close to this limit if a similar experiment to the 100 hour run were performed ...working detectors ...
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Design and experimental demonstration of a laser modulation system for future gravitational-wave detectors
... 2 LASER MODULATION SYSTEM The second key feature is the non-resonant AM sideband at f non ...main interferometer is useful to obtain well-decoupled error signals of length ...main interferometer, ...
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Quantum correlation measurements in interferometric gravitational wave detectors
... interferometric gravitational wave detectors, such as the Advanced Laser Interferometer Gravitational wave Observatory (LIGO), is limited by quantum shot noise, quantum ...
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Exploring the sensitivity of next generation gravitational wave detectors
... Noise Laser interferometer based GW detectors are almost inevitably limited in their sensitivity by the quantum na- ture of ...the interferometer mirrors as they reflect the photons incident ...
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Detector Characterization Analysis of the Initial Laser Interferometer Gravitational-Wave Observatory (LIGO) Using Principal Component Analysis (PCA)
... Detector characterization is the process of identifying and removing “noise” that corrupts the data stream of the LIGO detectors. This is vital to improving the sensitivity of the LIGO interferometer and ...
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Calibration of the LIGO gravitational wave detectors in the fifth science run
... Nd:YaG laser wavelength (λ = ...each interferometer over the course of the science run, and their mean used as the actuation scaling coefficient for all model ...
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Sensitivity of the advanced LIGO detectors at the beginning of gravitational wave astronomy
... the detectors to bring them to their design sensitivity, not all of the interferometer parameters were at their design values during ...the laser power resonating in the arm cavities was 100 kW ...
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Classification methods for noise transients in advanced gravitational-wave detectors
... advanced laser interferometer gravitational-wave observatory and advanced Virgo gravitational-wave ...advanced detectors in the upcoming science ...initial ...
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Searching for a stochastic background of gravitational waves with the laser interferometer gravitational-wave observatory
... At 1 mHz resolution, a forest of sharp 1 Hz harmonic lines can be observed. These lines were likely caused by the sharp ramp of a one-pulse-per-second signal, injected into the data ac- quisition system to synchronize it ...
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Advanced technologies for future ground-based, laser-interferometric gravitational wave detectors
... coatings [93]. These dopants at the level of 25% have been shown to lower the mechanical loss by approximately 40%. There has also been significant progress in understanding the link be[r] ...
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Quantum limited measurements in gravitational wave detectors
... For Gravitational Wave Detection This chapter outlines a proposal for a modified speed-meter interferometer that beats the standard quantum limit over a broad frequency ...an interferometer to ...
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Mitigating Noise in Interferometric Gravitational Wave Detectors
... 173 Figure 11.10: Test cavity mode identification. The red lines indicate modes predicted by the FEA model shown in Fig. 11.9. Finally, with the slight reduction in the high-frequency noise, it became clear that there ...
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