AN OPTICAL-FIBER NETWORK FOR FREQUENCY COMPARISONS ESTABLISHED IN BOULDER.
In preliminary experiments, NIST and JILA have demonstrated high short-term-stability transfer of frequency across the network. They first modulated the output of a 1.3 [micro]m laser at 2.3 GHz using a source locked to a hydrogen maser in the NIST time scale. This was transferred to the university over BRAN and then back to the division. The uncompensated diurnal variations of the time delay between the two sites were about 140 ps, and can be controlled well below this level.
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|Publication:||Journal of Research of the National Institute of Standards and Technology|
|Date:||Mar 1, 2001|
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