Reduction of laser intensity noise over 1 MHz band for single atom trapping

Abstract

We reduce the intensity noise of laser light by using an electro-optic modulator and a cousto-optic modulator in series. The electro-optic modulator reduces noise at high frequency(10 kHz to 1 MHz), while the acousto-optic modulator sets the average power of the light and reduces noise at low frequency (up to 10 kHz). The light is then used to trap single sodium atoms in an optical tweezer, where the lifetime of the atoms is limited by parametric heating due to laser noise at twice the trapping frequency. With our noise eater, the noise is reduced by up to 15 dB at these frequencies, and the lifetime is increased by an order of magnitude to around 6 seconds. Our technique is general and acts directly on the laser beam, expanding laser options for sensitive optical trapping applications.

7 pages, 4 figures, submitted to Optics Express

References in corpus (6)

• Many-Body Physics with Individually-Controlled Rydberg Atoms
• Precision Measurement of Time-Reversal Symmetry Violation with Laser-Cooled Polyatomic Molecules
• Cooling a single atom in an optical tweezer to its quantum ground state
• Energy distribution and cooling of a single atom in an optical tweezer
• Magic wavelengths for the np-ns transitions in alkali-metal atoms
• Molecular assembly of ground state cooled single atoms

Cited by in corpus (9)

• Optical cold damping of neutral nanoparticles near the ground state in an optical lattice
• A simple, passive design for large optical trap arrays for single atoms
• Entanglement-enhanced dual-comb spectroscopy
• Triatomic Photoassociation in an Ultracold Atom-Molecule Collision
• High-power, frequency-quadrupled UV laser source resonant with the ${}^1$S${}_0$-${}^3$P${}_1$ narrow intercombination transition of cadmium at 326.2 nm
• Ultratight confinement of atoms in a Rydberg empowered optical lattice
• Optical nuclear electric resonance as single qubit gate for trapped neutral atoms
• Multi-Mode Global Driving of Trapped Ions for Quantum Circuit Synthesis
• High-Power, Fiber-Laser-Based Source for Magic-Wavelength Trapping in Neutral-Atom Optical Clocks