Dichroic two-photon rubidium frequency standard
Date
2019
Authors
Perrella, C.
Light, P.S.
Anstie, J.D.
Baynes, F.N.
White, R.T.
Luiten, A.N.
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Journal article
Citation
Physical Review Applied, 2019; 12(5):054063-1-054063-6
Statement of Responsibility
C. Perrella, P.S. Light, J.D. Anstie, F.N. Baynes, R.T. White and A.N. Luiten
Conference Name
Abstract
We demonstrate an optical frequency standard based on the 5S1/2→5D5/2 two-photon transition of rubidium. The transition is interrogated in a Doppler-free arrangement by two lasers at 780 and 776 nm, with the sum frequency of the two lasers locked to the two-photon transition. We measure the fractional frequency stability of the frequency standard to be 1.5×10−13 at 1 s, reaching 4.9×10−14 at approximately 100s, by comparison with an optical frequency comb. Performance limitations are presented and a clear pathway to an order-of-magnitude improvement is discussed. This platform has the potential to deliver a compact, robust standard for commercial and industrial applications.
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© 2019 American Physical Society.