Title :
Robust and precise length correction of 25-km fiber for distribution of local oscillator
Author :
Musha, M. ; Sato, Y. ; Nakagawa, K. ; Ueda, K. ; Ueda, A. ; Ishiguro, M.
Author_Institution :
Inst. for Laser Sci., Univ. of Electro-Commun., Chofu, Japan
Abstract :
In order to distribute local oscillators for the phased-array radio telescopes, the cycle-slip free fiber length stabilization system has been developed. The length of the 25-km fiber was precisely measured by the Michelson interferometer with a digital phase frequency discriminator, and the length fluctuation of which was suppressed down to 2.5 μm.
Keywords :
Michelson interferometers; antenna phased arrays; discriminators; microwave photonics; optical fibre communication; radiofrequency oscillators; radiotelescopes; 25 km; Michelson interferometer; cycle-slip free fiber length stabilization system; digital phase frequency discriminator; length fluctuation; local oscillator distribution; phased-array radio telescopes; Fiber lasers; Frequency; Length measurement; Local oscillators; Optical fibers; Optical interferometry; Optical mixing; Phase measurement; Robustness; Telescopes;
Conference_Titel :
LEOS Summer Topical Meetings, 2005 Digest of the
Print_ISBN :
0-7803-8981-6
DOI :
10.1109/LEOSST.2005.1528024
