Carrier-Suppressed Multiple Single-Sideband Laser Source for Atom Cooling and Interferometry

Abstract

We present a new electro-optic modulation technique that enables a single laser diode to realize a cold-atom source and a quantum inertial sensor based on matter-wave interferometry. Using carrier-suppressed dual single-sideband modulation, an IQ modulator generates two optical sidebands from separate radio-frequency (rf) signals. These sidebands are controlled independently in frequency, phase, and power using standard rf components. Our laser source exhibits improved rejection of parasitic sidebands compared to those based on phase modulators, which generate large systematic shifts in atom interferometers. We measure the influence of residual laser lines on an atom-interferometric gravimeter and show agreement with a theoretical model. We estimate a reduction of the systematic shift by two orders of magnitude compared to previous architectures, and reach a long-term sensitivity of 15 ng on the gravitational acceleration with an interrogation time of only T = 20 ms. Finally, we characterize the performance of our integrated laser system, and show that it is suitable for mobile sensing applications including gravity surveys and inertial navigation.

arXiv comment14 pages, 11 figures

References in corpus (27)

• Atom Interferometers
• Measurement of the fine-structure constant as a test of the Standard Model
• Gravity measurements below $10^{-9}$ $g$ with a transportable absolute quantum gravimeter
• Space-borne Bose-Einstein condensation for precision interferometry
• Exploring gravity with the MIGA large scale atom interferometer
• Continuous Cold-atom Inertial Sensor with $1{\text{nrad.s}}^{-1}$ Rotation Stability
• Limits to the sensitivity of a low noise compact atomic gravimeter
• Mobile quantum gravity sensor with unprecedented stability
• Sensitivity limits of a Raman atom interferometer as a gravity gradiometer
• Dual Matter-Wave Inertial Sensors in Weightlessness
• STE-QUEST - Test of the Universality of Free Fall Using Cold Atom Interferometry
• Simultaneous Dual-Species Matter-Wave Accelerometer
• Absolute airborne gravimetry with a cold atom sensor
• Navigation-compatible hybrid quantum accelerometer using a Kalman filter
• The Feasibility of a Fully Miniaturized Magneto-Optical Trap for Portable Ultracold Quantum Technology
• Off-resonant Raman transitions impact in an atom interferometer
• Phase shift in an atom interferometer induced by the additional laser lines of a Raman laser generated by modulation
• Dual-wavelength laser source for onboard atom interferometry
• Narrow linewidth single laser source system for onboard atom interferometry
• Correlative methods for dual-species quantum tests of the weak equivalence principle
• $\Lambda$-enhanced grey molasses on the $D_2$ transition of Rubidium-87 atoms
• Characterization of a Simultaneous Dual-Species Atom Interferometer for a Quantum Test of the Weak Equivalence Principle
• Application of optical single-sideband laser in Raman atom interferometry
• Zero-velocity atom interferometry using a retroreflected frequency chirped laser
• A compact micro-wave synthesizer for transportable cold-atom interferometers
• A phase-locked laser system based on modulation technique for atom interferometry
• Raman transitions driven by phase-modulated light in a cavity atom interferometer

Cited by in corpus (6)

• High-Performance Silicon Photonic Single-Sideband Modulators for Cold Atom Interferometry
• Testing the Universality of Free Fall using correlated ${}^{39}$K -- ${}^{87}$Rb interferometers
• Analog Stabilization of an Electro-Optic I/Q Modulator with an Auxiliary Modulation Tone
• Digital stabilization of an IQ modulator in the carrier suppressed single side-band (CS-SSB) mode for atom interferometry
• Tensor gravity gradiometry with a single-axis atom gradiometer
• Standalone optical frequency-offset locking electronics for atomic physics