Title :
High precision calibration of spectrographs in astronomy
Author :
Wilken, T. ; Hänsch, T.W. ; Udem, Th ; Steinmetz, T. ; Holzwarth, R. ; Manescau, A. ; Curto, G. Lo ; Pasquini, L. ; Lovis, C.
Author_Institution :
Max-Planck-Inst. fur Quantenopt., Garching, Germany
Abstract :
An Yb-fiber frequency comb was developed and employed to calibrate an astronomical spectrograph. The repeatability was photon noise limited at 300kHz. Absolute accuracy was improved by a factor of 20 compared to traditional calibration sources.
Keywords :
Astronomy; Calibration; Doppler shift; Frequency; Instruments; Lamps; Observatories; Optical fiber testing; Optical noise; Spectroscopy;
Conference_Titel :
Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), 2010 Conference on
Conference_Location :
San Jose, CA, USA
Print_ISBN :
978-1-55752-890-2
Electronic_ISBN :
978-1-55752-890-2
