Journal ArticleDOI
Microwave signal generation with optical injection locking.
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Two single-mode laser diodes have been injection locked to the +1 and -1 diffracted orders of a 4.6-GHz acousto-optical modulator to drive stimulated Raman transitions between the cesium ground-state hyperfine levels.Abstract:
Two single-mode laser diodes have been injection locked to the +1 and −1 diffracted orders of a 4.6-GHz acousto-optical modulator. The measured locking bandwidth was 3 GHz for a locking gain of 35 dB. The microwave signal at 9.2 GHz had a measured linewidth of less than a few hertz. We used this system to drive stimulated Raman transitions between the cesium ground-state hyperfine levels. We observed Ramsey fringes and used them to characterize the microwave signal phase noise.read more
Citations
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Rotation sensing with a dual atom-interferometer Sagnac gyroscope
TL;DR: In this article, the Sagnac effect was applied to the SAGA-effect interferometer gyroscope with a short-term rotation-rate sensitivity of 6×10−10 rad s−1 over 1 s integration.
Journal ArticleDOI
Photonic Generation of Broadly Tunable Microwave Signals Utilizing a Dual-Beam Optically Injected Semiconductor Laser
Yu-Shan Juan,Fan-Yi Lin +1 more
TL;DR: In this paper, a dual-beam optically injected semiconductor laser was used to generate tunable microwave signals up to 120 GHz, which is currently limited by the locking range of the slave laser determined by the frequency difference between the Hopf (higher frequency) and saddle node (lower frequency) curves.
Journal ArticleDOI
Influence of lasers propagation delay on the sensitivity of atom interferometers
J.-L. Le Gouët,P. Cheinet,Jaewan Kim,David Holleville,A. Clairon,Arnaud Landragin,F. Pereira Dos Santos +6 more
TL;DR: In this article, the authors studied the effect of laser frequency noise on the performance of atom interferometers based on two photon transitions and showed that the delay induced by the difference of the laser beams paths makes the interferometer sensitive to fluctuations of the frequency of the lasers.
Journal ArticleDOI
Narrow absorptive resonances in a four-level atomic system
TL;DR: In this paper, the effect of a control beam on a Lambda electromagnetically induced transparency (EIT) system in 87Rb has been studied, where the control beam couples one ground state to another excited state forming a four level N-system.
Journal ArticleDOI
Narrow absorptive resonances in a four-level atomic system.
TL;DR: In this paper, the effect of a control beam on a Λ electromagnetically induced transparency (EIT) system in 87Rb was studied and it was shown that the control beam can be used to Stark shift or split the EIT resonance when atoms with a range of velocities are present.
References
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Journal ArticleDOI
A Molecular Beam Resonance Method with Separated Oscillating Fields
TL;DR: In this paper, a new molecular beam resonance method using separated oscillating fields at the incident and emergent ends of the homogeneous field region is theoretically investigated and an expression is obtained for the quantum mechanical transition probability of a system between two states when the system is subjected to such separated oscillators.
Journal ArticleDOI
Measurement of the gravitational acceleration of an atom with a light-pulse atom interferometer
Mark A. Kasevich,Steven Chu +1 more
TL;DR: In this paper, an improved scheme to drive the stimulated Raman transitions was used to achieve a resolution of 3×10−8 g after 2×103 seconds of integration time.
Journal ArticleDOI
Laser cooling below a photon recoil with three-level atoms.
Mark A. Kasevich,Steven Chu +1 more
TL;DR: A new cooling technique is demonstrated which is used to cool sodium atoms in one dimension to an effective temperature of 100 nK, less than 1/10 of the single photon recoil temperature.
Journal ArticleDOI
Microwave signal generation with injection-locked laser diodes
TL;DR: Heterodyne detection of the light from two slave lasers injection locked to FM sidebands of a modulated master laser is used to generate a narrowband microwave signal at 10.5 GHz.
Journal ArticleDOI
Injection locking in AlGaAs semiconductor laser
S. Kobayashi,T. Kimura +1 more
TL;DR: In this paper, the authors studied the relation of the locking bandwidth versus the ratio of locked laser power to injected power in AlGaAs double-heterostructure (DH) laser systems.