Fiber-comb-stabilized light source at 556 nm for magneto-optical trapping of ytterbium

Abstract

A frequency-stabilized light source emitting at 556 nm is realized by frequency-doubling a 1112-nm laser, which is phase-locked to a fiber-based optical frequency comb. The 1112-nm laser is either an ytterbium (Yb)-doped distributed feedback fiber laser or a master-slave laser system that uses an external cavity diode laser as a master laser. We have achieved the continuous frequency stabilization of the light source over a five-day period. With the light source, we have completed the second-stage magneto-optical trapping (MOT) of Yb atoms using the 1S0 - 3P1 intercombination transition. The temperature of the ultracold atoms in the MOT was 40 uK when measured using the time-of-flight method, and this is sufficient for loading the atoms into an optical lattice. The fiber-based frequency comb is shown to be a useful tool for controlling the laser frequency in cold-atom experiments.

18 pages, 6 figures, submitted to and accepted by J. Opt. Soc. Am. B (ID 125081)

References in corpus (8)

• Degenerate Fermi Gases of Ytterbium
• Observation and absolute frequency measurements of the 1S0 - 3P0 optical clock transition in ytterbium
• Measuring the frequency of a Sr optical lattice clock using a 120-km coherent optical transfer
• One-Dimensional Optical Lattice Clock with a Fermionic 171Yb Isotope
• Frequency evaluation of the doubly forbidden ${}^1{S}_0{\to }^3{P}_0$ transition in bosonic ${}^{174}$Yb
• A Mott Insulator of Ultracold Alkaline-Earth-Like Atoms
• Doppler-free spectroscopy of molecular iodine using a frequency-stable light source at 578 nm
• Spin-1/2 Optical Lattice Clock

Cited by in corpus (6)

• Frequency ratio measurement of 171Yb and 87Sr optical lattice clocks
• Second harmonic generation at 399 nm resonant on the ${}^1{S}_0{-}^1{P}_1$ transition of ytterbium using a periodically poled LiNbO${}_3$ waveguide
• Tutorial on laser locking techniques and the manufacturing of vapor cells for spectroscopy
• Inverted crossover resonance aiding laser cooling of ${}^{171}$Yb
• Spectroscopy and laser cooling on the ${}^1{S}_0-{}^3{P}_1$ line in Yb via an injection-locked diode laser at 1111.6nm
• Robust frequency stabilization and linewidth narrowing of a laser with large intermittent frequency jumps using an optical cavity and an atomic beam