Automatic Beam Alignment for the Mode-Cleaner Cavities of GEO 600
Applied Optics, Vol. 43, Issue 9, pp. 1938-1945 (2004)
http://dx.doi.org/10.1364/AO.43.001938
Acrobat PDF (143 KB)
Abstract
The automatic alignment system for the two suspended, triangular mode-cleaner cavities of the gravitational wave detector GEO 600 has been in continuous operation since the spring of 2001. A total of 20 angular degrees of freedom are controlled by feedback loops with almost no manual alignment having been required since installation. Error signals for the eight most important degrees of freedom are obtained with the differential wave-front sensing technique. We describe the sensing system, the control topology, and the performance of the automatic alignment system. A continuous locking stretch of more than 120 h has been achieved.
© 2004 Optical Society of America
OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(230.0040) Optical devices : Detectors
Citation
Hartmut Grote, Gerhard Heinzel, Andreas Freise, Stefan Goβler, Benno Willke, Harald Lück, Harry Ward, Morag M. Casey, Kenneth A. Strain, David Robertson, Jim Hough, and Karsten Danzmann, "Automatic Beam Alignment for the Mode-Cleaner Cavities of GEO 600," Appl. Opt. 43, 1938-1945 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-9-1938
You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
Related Journal Articles 
- Analysis of light noise sources in a recycled Michelson interferometer with Fabry–Perot arms (JOSAA)
- Generalized algorithm for the unified analysis and simultaneous evaluation of geometrical spin-redirection phase and Pancharatnam phase in a complex interferometric system (JOSAA)
- Phase reconstruction from undersampled intensity patterns (JOSAA)
- Phase calibration on interferometric graphs (JOSAA)
- Phase-shifted interferometry without phase unwrapping: reconstruction of a decentered wave front (JOSAA)
Related Conference Papers
- Two Methods for Remote Measurements of Thermal Effects in Optical Elements
- A Novel Reconstruction Method for Weak-Phase Optical Interferometry
- Polarization diverse optical frequency domain interferometry: all coupler implementation
- Phase mask period characterization with picometer accuracy using Bragg gratings and diffractive interferometric technique
- Reset-free phase shifter in a Sagnac-type interferometer for control of chirp and apodization of Bragg gratings
« Previous Article | Next Article »
OSA is a member of 