Title :
A high-precision tunable millimeter-wave photonic LO reference for the ALMA telescope
Author :
Shillue, William ; Grammer, Wes ; Jacques, Christophe ; Meadows, Hollister ; Castro, Jose ; Banda, Juanita ; Treacy, Robert ; Masui, Yoshihiro ; Brito, Ricardo ; Huggard, Peter ; Ellison, Brian ; Cliche, Jean-Francois ; Ayotte, S. ; Babin, Andre ; Costin,
Author_Institution :
Nat. Radio Astron. Obs., Charlottesville, VA, USA
Abstract :
The Atacama Large Millimeter Array is a radio telescope array of 66 antennas designed for high performance scientific imaging, covering a frequency range of 27-950 GHz. Each antenna has a front end with ten receiving bands, and each band has a local oscillator which is synchronized between all antennas. We describe a high precision tunable millimeter-wave photonic local oscillator reference system, which is used as the synchronizing reference for all ten bands on each receiver.
Keywords :
antenna arrays; microwave photonics; millimetre wave oscillators; radiotelescopes; receiving antennas; synchronisation; ALMA telescope; Atacama large millimeter array; antennas; frequency 27 GHz to 950 GHz; high performance scientific imaging; high precision tunable millimeter-wave photonic local oscillator reference system; high-precision tunable millimeter-wave photonic LO reference; radio telescope array; receiver; receiving bands; synchronizing reference; Assembly; Laser noise; Laser tuning; Optical fibers; Photonics; Receivers; Synthesizers; Millimeter-wave technology; Photonics; Radio astronomy;
Conference_Titel :
Microwave Symposium Digest (IMS), 2013 IEEE MTT-S International
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4673-6177-4
DOI :
10.1109/MWSYM.2013.6697660
