Abstract
We present a theoretical analysis, systematic simulation, and
experimental measurements for the phase noise, timing jitter, and
frequency stability in the frequency distribution of millimeter waves over
distant optical fiber links. The conception that the dissemination of a
higher frequency reference instead of a lower one can achieve a better
frequency stability is discussed and verified. We find that the system’s
noise floor, including thermal noise, shot noise, and any other noise from
electronic components, is considered to be a fundamental limitation for a
frequency reference transmission system. Benefiting from the
high-precision time delay variation discrimination and accurate locking
control operation, a highly stabilized reference is distributed to a
remote end over a 60 km spooled fiber, achieving a frequency stability of
4×10−17 at an average time 1000 s, corresponding to 23 fs
of RMS timing jitter (0.01 Hz–1 MHz).
© 2016 Chinese Laser Press
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