Providing $10^{-16}$ Short-Term Stability of a 1.5- $\\mu\\hbox {m}$ Laser to Optical Clocks

Author

Hagemann, Ch ; Grebing, C. ; Kessler, T. ; Falke, St ; Lemke, Ney ; Lisdat, Ch ; Schnatz, H. ; Riehle, Fritz ; Sterr, Uwe

Author_Institution

Phys.-Tech. Bundesanstalt, Braunschweig, Germany

Volume

62

Issue

6

fYear

2013

fDate

Jun-13

Firstpage

1556

Lastpage

1562

Abstract

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 ¹S₀ - ³P₀ clock transition of ⁸⁷Sr 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.

Keywords

atomic clocks; fibre lasers; laser frequency stability; laser noise; oscillators; spectral line breadth; strontium; ¹S₀ - ³P₀ clock transition; ⁸⁷Sr; Fourier-limited linewidth; femtosecond fiber comb; fractional frequency stability; frequency comb; laser clocks; master laser; noise sources; optical clocks; short-term stability; slave laser; transfer oscillator; wavelength 1.5 mum; wavelength 698 nm; Clocks; Laser noise; Laser stability; Laser transitions; Measurement by laser beam; Thermal stability; Atomic clocks; femtosecond frequency combs; frequency control; laser stability; optical phase-locked loops; stability transfer; transfer oscillator;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2013.2242597

Filename

6468089

Providing Short-Term Stability of a 1.5- Laser to Optical Clocks

Hagemann, Ch ; Grebing, C. ; Kessler, T. ; Falke, St ; Lemke, Ney ; Lisdat, Ch ; Schnatz, H. ; Riehle, Fritz ; Sterr, Uwe

jour

Providing $10^{-16}$ Short-Term Stability of a 1.5- $\\mu\\hbox {m}$ Laser to Optical Clocks