The Autoalignment System of GEO 600 Hartmut Grote and the GEO 600 team Max-Planck Institute for...
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Transcript of The Autoalignment System of GEO 600 Hartmut Grote and the GEO 600 team Max-Planck Institute for...
![Page 1: The Autoalignment System of GEO 600 Hartmut Grote and the GEO 600 team Max-Planck Institute for Gravitational Physics Amaldi, Perth 12-07-2001.](https://reader036.fdocuments.us/reader036/viewer/2022062417/5516b02e550346f0208b522c/html5/thumbnails/1.jpg)
The Autoalignment System of GEO 600
Hartmut Groteand the GEO 600 team
Max-Planck Institute for Gravitational Physics
Amaldi, Perth 12-07-2001
![Page 2: The Autoalignment System of GEO 600 Hartmut Grote and the GEO 600 team Max-Planck Institute for Gravitational Physics Amaldi, Perth 12-07-2001.](https://reader036.fdocuments.us/reader036/viewer/2022062417/5516b02e550346f0208b522c/html5/thumbnails/2.jpg)
Autoalignment - Purposes
Superimpose cavity axes with incoming beam - Differential wavefront sensing (analog feedback for 14 DOF)
Center beam spot positions on mirrors - Spot position sensing (digital feedback for 20 DOF)
![Page 3: The Autoalignment System of GEO 600 Hartmut Grote and the GEO 600 team Max-Planck Institute for Gravitational Physics Amaldi, Perth 12-07-2001.](https://reader036.fdocuments.us/reader036/viewer/2022062417/5516b02e550346f0208b522c/html5/thumbnails/3.jpg)
Autoalignment
Experimental setupfor 1 cavity
![Page 4: The Autoalignment System of GEO 600 Hartmut Grote and the GEO 600 team Max-Planck Institute for Gravitational Physics Amaldi, Perth 12-07-2001.](https://reader036.fdocuments.us/reader036/viewer/2022062417/5516b02e550346f0208b522c/html5/thumbnails/4.jpg)
Autoalignment
Experimental setupfor 1 cavity
![Page 5: The Autoalignment System of GEO 600 Hartmut Grote and the GEO 600 team Max-Planck Institute for Gravitational Physics Amaldi, Perth 12-07-2001.](https://reader036.fdocuments.us/reader036/viewer/2022062417/5516b02e550346f0208b522c/html5/thumbnails/5.jpg)
Autoalignment
Experimental setupfor 1 cavity
![Page 6: The Autoalignment System of GEO 600 Hartmut Grote and the GEO 600 team Max-Planck Institute for Gravitational Physics Amaldi, Perth 12-07-2001.](https://reader036.fdocuments.us/reader036/viewer/2022062417/5516b02e550346f0208b522c/html5/thumbnails/6.jpg)
Autoalignment
Experimental setupfor 1 cavity
Differential wavefrontsensing
Orthogonalization< 1/10
Bandwith 0.2 or 6 Hz
Sensitivity typ.10 p rad / sqrt(Hz)
![Page 7: The Autoalignment System of GEO 600 Hartmut Grote and the GEO 600 team Max-Planck Institute for Gravitational Physics Amaldi, Perth 12-07-2001.](https://reader036.fdocuments.us/reader036/viewer/2022062417/5516b02e550346f0208b522c/html5/thumbnails/7.jpg)
Autoalignment
Experimental setupfor 1 cavity
Local beam centeringservos
Bandwith ~ 1kHz
![Page 8: The Autoalignment System of GEO 600 Hartmut Grote and the GEO 600 team Max-Planck Institute for Gravitational Physics Amaldi, Perth 12-07-2001.](https://reader036.fdocuments.us/reader036/viewer/2022062417/5516b02e550346f0208b522c/html5/thumbnails/8.jpg)
Autoalignment
Experimental setupfor 1 cavity
Spot position control
![Page 9: The Autoalignment System of GEO 600 Hartmut Grote and the GEO 600 team Max-Planck Institute for Gravitational Physics Amaldi, Perth 12-07-2001.](https://reader036.fdocuments.us/reader036/viewer/2022062417/5516b02e550346f0208b522c/html5/thumbnails/9.jpg)
Autoalignment - Switching On and Off
![Page 10: The Autoalignment System of GEO 600 Hartmut Grote and the GEO 600 team Max-Planck Institute for Gravitational Physics Amaldi, Perth 12-07-2001.](https://reader036.fdocuments.us/reader036/viewer/2022062417/5516b02e550346f0208b522c/html5/thumbnails/10.jpg)
Modecleaner Alignment Drift Over 1 Day
![Page 11: The Autoalignment System of GEO 600 Hartmut Grote and the GEO 600 team Max-Planck Institute for Gravitational Physics Amaldi, Perth 12-07-2001.](https://reader036.fdocuments.us/reader036/viewer/2022062417/5516b02e550346f0208b522c/html5/thumbnails/11.jpg)
Modecleaner Alignment Drift Over 1 Day
![Page 12: The Autoalignment System of GEO 600 Hartmut Grote and the GEO 600 team Max-Planck Institute for Gravitational Physics Amaldi, Perth 12-07-2001.](https://reader036.fdocuments.us/reader036/viewer/2022062417/5516b02e550346f0208b522c/html5/thumbnails/12.jpg)
Modecleaner Alignment Drift Over 1 Day
![Page 13: The Autoalignment System of GEO 600 Hartmut Grote and the GEO 600 team Max-Planck Institute for Gravitational Physics Amaldi, Perth 12-07-2001.](https://reader036.fdocuments.us/reader036/viewer/2022062417/5516b02e550346f0208b522c/html5/thumbnails/13.jpg)
Autoalignment setup
PR + MI cavity
![Page 14: The Autoalignment System of GEO 600 Hartmut Grote and the GEO 600 team Max-Planck Institute for Gravitational Physics Amaldi, Perth 12-07-2001.](https://reader036.fdocuments.us/reader036/viewer/2022062417/5516b02e550346f0208b522c/html5/thumbnails/14.jpg)
PR Mirror Rotation Autoalignment Errorsignal
![Page 15: The Autoalignment System of GEO 600 Hartmut Grote and the GEO 600 team Max-Planck Institute for Gravitational Physics Amaldi, Perth 12-07-2001.](https://reader036.fdocuments.us/reader036/viewer/2022062417/5516b02e550346f0208b522c/html5/thumbnails/15.jpg)
PR Mirror Rotation Autoalignment Errorsignal