Injection locking of a high power ultraviolet laser diode for laser cooling of ytterbium atoms

Abstract

We developed a high-power laser system at a wavelength of 399 nm for laser cooling of ytterbium atoms with ultraviolet laser diodes. The system is composed of an external cavity laser diode providing frequency stabilized output at a power of 40 mW and another laser diode for amplifying the laser power up to 220 mW by injection locking. The systematic method for optimization of our injection locking can also be applied to high power light sources at any other wavelengths. Our system, which does not depend on complex nonlinear frequency-doubling, has great importance for implementing transportable optical lattice clocks, and is also useful for investigations on condensed matter physics or quantum information processing using cold atoms.

5 pages, 5 figures

References in corpus (7)

• All-Optical Formation of Quantum Degenerate Mixtures
• Lamb-Dicke spectroscopy of atoms in a hollow-core photonic crystal fibre
• Magneto-Optical Trap for Thulium Atoms
• Magneto-Optical Trapping of Holmium Atoms
• Unconditional quantum-noise suppression via measurement-based quantum feedback
• Efficient Frequency Doubling at 399 nm
• Projective measurement of a single nuclear spin qubit by using two-mode cavity QED

Cited by in corpus (7)

• Uncertainty evaluation of an ${}^{171}$Yb optical lattice clock at NMIJ
• 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
• Active Stabilization of a Diode Laser Injection Lock
• Dual-Mode Operation of an Optical Lattice Clock Using Strontium and Ytterbium Atoms
• Active control of a diode laser with injection locking
• Watt-class injection-locked diode laser system at 399 nm for atomic physics
• Polarization purity for active stabilization of diode laser injection lock