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Lee M, Moriya PH, Hastie JE. Monolithic VECSEL for stable kHz linewidth. OPTICS EXPRESS 2023; 31:38786-38797. [PMID: 38017974 DOI: 10.1364/oe.490046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 10/24/2023] [Indexed: 11/30/2023]
Abstract
Vertical-external-cavity surface-emitting semiconductor lasers (VECSELs) are of increasing interest for applications requiring ultra-coherence and/or low noise at novel wavelengths; performance that is currently achieved via high-Q, air-spaced resonators to achieve long intra-cavity photon lifetimes (for the so-called class-A low noise regime), power scaling and high beam quality. Here, we report on the development of a compact, electronically tunable, monolithic-cavity, class-A VECSEL (monolithic VECSEL) for ultra-narrow free-running linewidths. A multi-quantum-well, resonant periodic gain structure with integrated distributed Bragg reflector (DBR) was optically-bonded to an air-gap-free laser resonator created inside a right-angle fused-silica prism to suppress the influence of environmental noise on the external laser oscillation, thus achieving high stability. Mode-hop-free wavelength tuning is performed via the stabilized temperature; or electronically, and with low latency, via a shear piezo-electric transducer mounted on the top of the prism. The free-running linewidth, estimated via the frequency power spectral density (PSD), is sub-kHz over ms timescales and <1.9 kHz for time sampling as long as 1s, demonstrating at least two orders-of-magnitude improvement in noise performance compared to previously reported single frequency VECSELs. The stable, total internal reflection resonator concept is akin to the prevalent monolithic non-planar ring oscillator (NPRO), however the monolithic VECSEL has several important advantages: tailored emission wavelength (via semiconductor bandgap engineering), no relaxation oscillations, no applied magnetic field, and low requirements on the pump beam quality. This approach is power-scalable in principle and could be applied to VECSELs at any of the wavelengths from the visible to the mid-infrared at which they are already available, to create a range of robust, ultra-coherent laser systems with reduced bulkiness and complexity. This is of particular interest for remote metrology and the translation of quantum technologies, such as optical clocks, from research laboratories into real world applications.
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Beaufils Q, Lefebve J, Baptista JG, Piccon R, Cambier V, Sidorenkov LA, Fallet C, Lévèque T, Merlet S, Pereira Dos Santos F. Rotation related systematic effects in a cold atom interferometer onboard a Nadir pointing satellite. NPJ Microgravity 2023; 9:53. [PMID: 37429855 DOI: 10.1038/s41526-023-00297-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 06/15/2023] [Indexed: 07/12/2023] Open
Abstract
We study the effects of rotations on a cold atom accelerometer onboard a Nadir pointing satellite. A simulation of the satellite attitude combined with a calculation of the phase of the cold atom interferometer allow us to evaluate the noise and bias induced by rotations. In particular, we evaluate the effects associated to the active compensation of the rotation due to Nadir pointing. This study was realized in the context of the preliminary study phase of the CARIOQA Quantum Pathfinder Mission.
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Affiliation(s)
- Quentin Beaufils
- LNE-SYRTE, Observatoire de Paris, Université PSL, CNRS:UMR 8630, Sorbonne Université, 61 avenue de l'Observatoire, F-75014, Paris, France.
| | - Julien Lefebve
- Centre National d'Etudes Spatiales, 18 avenue Edouard Belin, 31400, Toulouse, France
| | - Joel Gomes Baptista
- LNE-SYRTE, Observatoire de Paris, Université PSL, CNRS:UMR 8630, Sorbonne Université, 61 avenue de l'Observatoire, F-75014, Paris, France
| | - Raphaël Piccon
- LNE-SYRTE, Observatoire de Paris, Université PSL, CNRS:UMR 8630, Sorbonne Université, 61 avenue de l'Observatoire, F-75014, Paris, France
| | - Valentin Cambier
- LNE-SYRTE, Observatoire de Paris, Université PSL, CNRS:UMR 8630, Sorbonne Université, 61 avenue de l'Observatoire, F-75014, Paris, France
| | - Leonid A Sidorenkov
- LNE-SYRTE, Observatoire de Paris, Université PSL, CNRS:UMR 8630, Sorbonne Université, 61 avenue de l'Observatoire, F-75014, Paris, France
| | - Christine Fallet
- Centre National d'Etudes Spatiales, 18 avenue Edouard Belin, 31400, Toulouse, France
| | - Thomas Lévèque
- Centre National d'Etudes Spatiales, 18 avenue Edouard Belin, 31400, Toulouse, France
| | - Sébastien Merlet
- LNE-SYRTE, Observatoire de Paris, Université PSL, CNRS:UMR 8630, Sorbonne Université, 61 avenue de l'Observatoire, F-75014, Paris, France
| | - Franck Pereira Dos Santos
- LNE-SYRTE, Observatoire de Paris, Université PSL, CNRS:UMR 8630, Sorbonne Université, 61 avenue de l'Observatoire, F-75014, Paris, France
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Mohageg M, Mazzarella L, Anastopoulos C, Gallicchio J, Hu BL, Jennewein T, Johnson S, Lin SY, Ling A, Marquardt C, Meister M, Newell R, Roura A, Schleich WP, Schubert C, Strekalov DV, Vallone G, Villoresi P, Wörner L, Yu N, Zhai A, Kwiat P. The deep space quantum link: prospective fundamental physics experiments using long-baseline quantum optics. EPJ QUANTUM TECHNOLOGY 2022; 9:25. [PMID: 36227029 PMCID: PMC9547810 DOI: 10.1140/epjqt/s40507-022-00143-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
The National Aeronautics and Space Administration's Deep Space Quantum Link mission concept enables a unique set of science experiments by establishing robust quantum optical links across extremely long baselines. Potential mission configurations include establishing a quantum link between the Lunar Gateway moon-orbiting space station and nodes on or near the Earth. This publication summarizes the principal experimental goals of the Deep Space Quantum Link. These goals, identified through a multi-year design study conducted by the authors, include long-range teleportation, tests of gravitational coupling to quantum states, and advanced tests of quantum nonlocality.
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Affiliation(s)
- Makan Mohageg
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California USA
| | - Luca Mazzarella
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California USA
| | | | - Jason Gallicchio
- Department of Physics, Harvey Mudd College, Claremont, California USA
| | - Bei-Lok Hu
- Maryland Center for Fundamental Physics and Joint Quantum Institute, University of Maryland, College Park, Maryland USA
| | - Thomas Jennewein
- Institute for Quantum Computing and Dep. of Physics and Astronomy, University of Waterloo, Waterloo, Canada
| | - Spencer Johnson
- Department of Physics, Illinois Quantum Information Science & Technology Center, University of Illinois at Urbana-Champaign, Urbana, Illinois USA
| | - Shih-Yuin Lin
- Department of Physics, National Changhua University of Education, Changhua, Taiwan
| | - Alexander Ling
- Centre for Quantum Technologies and Department of Physics, National University of Singapore, Singapore, Singapore
| | | | - Matthias Meister
- Institute of Quantum Technologies, German Aerospace Center (DLR), Ulm, Germany
| | - Raymond Newell
- Los Alamos National Laboratory, Los Alamos, New Mexico USA
| | - Albert Roura
- Institute of Quantum Technologies, German Aerospace Center (DLR), Ulm, Germany
| | - Wolfgang P. Schleich
- Institute of Quantum Technologies, German Aerospace Center (DLR), Ulm, Germany
- Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQst), Universität Ulm, Ulm, Germany
- Hagler Institute for Advanced Study, AgriLife Research, Institute for Quantum Science and Engineering (IQSE), and Department of Physics and Astronomy, Texas A& M University, College Station, Texas USA
| | - Christian Schubert
- Institute for Satellite Geodesy and Inertial Sensing, German Aerospace Center (DLR), Hanover, Germany
- Institute for Quantum Optics, Germany Leibniz University Hannover, Hanover, Germany
| | - Dmitry V. Strekalov
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California USA
| | - Giuseppe Vallone
- Dipartimento di Ingegneria dell’Informazione, Universitá degli Studi di Padova, Padova, Italy
- Padua Quantum Technologies Research Center, Universitá degli Studi di Padova, Padova, Italy
- Dipartimento di Fisica e Astronomia, Universitá degli Studi di Padova, Padova, Italy
| | - Paolo Villoresi
- Dipartimento di Ingegneria dell’Informazione, Universitá degli Studi di Padova, Padova, Italy
- Padua Quantum Technologies Research Center, Universitá degli Studi di Padova, Padova, Italy
| | - Lisa Wörner
- Institute of Quantum Technologies, German Aerospace Center (DLR), Ulm, Germany
| | - Nan Yu
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California USA
| | - Aileen Zhai
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California USA
| | - Paul Kwiat
- Department of Physics, University of Patras, Patras, Greece
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Free-Space Continuous-Variable Quantum Key Distribution with Imperfect Detector against Uniform Fast-Fading Channels. Symmetry (Basel) 2022. [DOI: 10.3390/sym14061271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Free-space continuous-variable quantum key distribution based on atmospheric laser communications is expected to play an important role in the global continuous-variable quantum key distribution network. The practical homodyne detector model is applied in free-space continuous-variable quantum key distribution which models the imperfect characteristics including the detection efficiency and the electronic noise. In the conventional model, we must calibrate them simultaneously. In the modified model, only one of the imperfections needs to be calibrated to simplify the calibration process of the practical experiments, also known as one-time calibration. The feasibility of the modified detector model against the fast-fading channel is proved. The results of the symmetry operations are considered when presenting detailed security analysis. Some remarkable features of the uniform fast-fading channel were found from the simulation results. The performances of the conventional model and the modified model are similar but the modified model has the advantage of achieving one-time calibration.
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Afek G, Carney D, Moore DC. Coherent Scattering of Low Mass Dark Matter from Optically Trapped Sensors. PHYSICAL REVIEW LETTERS 2022; 128:101301. [PMID: 35333080 DOI: 10.1103/physrevlett.128.101301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 01/21/2022] [Indexed: 06/14/2023]
Abstract
We propose a search for low mass dark matter particles through momentum recoils caused by their scattering from trapped, nanometer-scale objects. Our projections show that even with a modest array of femtogram-mass sensors, parameter space beyond the reach of existing experiments can be explored. The case of smaller, attogram-mass sensors is also analyzed-where dark matter can coherently scatter from the entire sensor-enabling a large enhancement in the scattering cross-section relative to interactions with single nuclei. Large arrays of such sensors have the potential to investigate new parameter space down to dark matter masses as low as 10 keV. If recoils from dark matter are detected by such sensors, their inherent directional sensitivity would allow an unambiguous identification of a dark matter signal.
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Affiliation(s)
- Gadi Afek
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - Daniel Carney
- Physics Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - David C Moore
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
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