DocumentCode
1728601
Title
Atacama Large Millimeter Array photonic local oscillator: femtosecond-level synchronization for radio astronomy
Author
Shillue, Bill
Author_Institution
Photonic LO Group, Nat. Radio Astron. Obs., Charlottesville, VA, USA
fYear
2010
Firstpage
569
Lastpage
571
Abstract
The ALMA Photonic LO system consists of a unique combination of a widely tunable and low-phase-noise millimeter-wave LO reference transmission, combined with a precise round-trip phase correction system based on an optical interferometer. The first installation of the system is now in place and supporting the initial phase of scientific commissioning of the telescope.
Keywords
light interferometers; millimetre wave oscillators; radioastronomy; radiowave interferometers; Atacama large millimeter array photonic local oscillator; femtosecond-level synchronization; low phase noise millimeter wave LO reference transmission; optical interferometer; radioastronomy; round-trip phase correction system; Antennas; Laser tuning; Optical fiber amplifiers; Optical fiber dispersion; Optical fiber polarization; Photonics; Synthesizers;
fLanguage
English
Publisher
ieee
Conference_Titel
Frequency Control Symposium (FCS), 2010 IEEE International
Conference_Location
Newport Beach, CA
ISSN
1075-6787
Print_ISBN
978-1-4244-6399-2
Type
conf
DOI
10.1109/FREQ.2010.5556263
Filename
5556263
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