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|Title:||Optical frequency synthesis from a cryogenic microwave sapphire oscillator|
|Citation:||Optics Express, 2006; 14(10):4316-4327|
|Publisher:||Optical Society of America|
|J. J. McFerran, S. T. Dawkins, P. L. Stanwix, M. E. Tobar and A. N. Luiten|
|Abstract:||We demonstrate an optical frequency comb with fractional frequency instability of </=2x10(-14) at measurement times near 1 s, when the 10th harmonic of the comb spacing is controlled by a liquid helium cooled microwave sapphire oscillator. The frequency instability of the comb is estimated by comparing it to a cavity-stabilized optical oscillator. The less conventional approach of synthesizing low-noise optical signals from a microwave source is relevant when a laboratory has microwave sources with frequency stability superior to their optical counterparts. We describe the influence of high frequency environmental noise and how it impacts the phase-stabilized frequency comb performance at integration times less than 1 s.|
|Rights:||© 2006 Optical Society of America|
|Appears in Collections:||IPAS publications|
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