JOSEF FRISCH, DAVID BROWN, EUGENE CISNEROS (SLAC)
The large size (~30 Kilometers), and high operating frequency (11.4 GHz) of the proposed NLC TeV linear collider place stringent demands on the RF phase distribution and timing systems. We present experimental results on a prototype fiber optic system that uses active feedback to control the phase length of the fibers. This system stabilizes the phase of the signal reflected from the far end of the fiber by controlling the temperature of a fiber spool connected in series with the main fiber. It has demonstrated the required 1.5e-8 relative stability / degree C.
*Work supported by department of energy contract DE-AC03-76SF00515
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