Title :
Providing
Short-Term Stability of a 1.5-
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
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;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2013.2242597