$Providing 10^ Short-Term Stability of a 1.5- \mu\hbox Laser to Optical Clocks$

Providing 10^ Short-Term Stability of a 1.5- \mu\hbox Laser to Optical Clocks

We report on transferring 10 -16 -level fractional frequency stability of a "master laser" operated at 1.5 μm to a "slave laser" operated at 698 nm, using a femtosecond fiber comb as transfer oscillator. With the 698-nm laser, the 1 S 0 - 3 P 0 clock transition of 87 Sr was resol...

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Veröffentlicht in:	IEEE transactions on instrumentation and measurement 2013-06, Vol.62 (6), p.1556-1562
Hauptverfasser:	Hagemann, C., Grebing, C., Kessler, T., Falke, S., Lemke, N., Lisdat, C., Schnatz, H., Riehle, F., Sterr, U.
Format:	Artikel
Sprache:	eng
Schlagworte:	Atomic clocks Clocks femtosecond frequency combs frequency control Laser noise Laser stability Laser transitions Measurement by laser beam optical phase-locked loops stability transfer Thermal stability transfer oscillator
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Beschreibung
Zusammenfassung:	We report on transferring 10 -16 -level fractional frequency stability of a "master laser" operated at 1.5 μm to a "slave laser" operated at 698 nm, using a femtosecond fiber comb as transfer oscillator. With the 698-nm laser, the 1 S 0 - 3 P 0 clock transition of 87 Sr was resolved with a Fourier-limited linewidth of 1.5 Hz (before: 10 Hz). Potential noise sources contributed by the frequency comb are discussed in detail.
ISSN:	0018-9456 1557-9662
DOI:	10.1109/TIM.2013.2242597