Short-term stability of Cs microcell-stabilized lasers using dual-frequency sub-Doppler spectroscopy

Gusching, Anthony; Petersen, Michael; Passilly, Nicolas; Brazhnikov, D. V.; Hafiz, Moustafa Abdel; Boudot, Rodolphe

doi:10.1364/josab.438111

Cited by 15 publications

(3 citation statements)

References 50 publications

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“…The device in its current state may be used for cold-atom experiments in laboratories or as a building block for future cold-atom quantum sensors and wavelength measurements or calibration. Our platform can be adapted for referencing to other alkali-vapors like potassium [11] or cesium [34], but also for more advanced schemes. To achieve long-term stabilities relevant to optical clock applications for navigation, compact AOFRs based on the two-photon transition at 778 nm are promising candidates [35,36].…”

Section: Discussionmentioning

confidence: 99%

Compact Plug and Play Optical Frequency Reference Device Based on Doppler-Free Spectroscopy of Rubidium Vapor

Strangfeld,

Wiegand,

Kluge

et al. 2022

Preprint

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Compactness, robustness and autonomy of optical frequency references are prerequisites for reliable operation in mobile systems, on ground as well as in space. We present a standalone plug and play optical frequency reference device based on frequency modulation spectroscopy of the D2-transition in rubidium at 780 nm. After a single button press the hand-sized laser module, based on the micro-integrated laser-optical bench described in [J. Opt. Soc. Am. B 38, 1885-1891 (2021)], works fully autonomous and generates 6 mW of frequency stabilized light with a relative frequency instability of 1.4×10 −12 at 1 s and below 10 −11 at 10 5 s averaging time. We describe the design of the device, investigate the thermal characteristics affecting the output frequency and demonstrate short-term frequency stability improvement by a Bayesian optimizer varying the modulation parameters.

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Section: Discussionmentioning

confidence: 99%

Compact Plug and Play Optical Frequency Reference Device Based on Doppler-Free Spectroscopy of Rubidium Vapor

Strangfeld,

Wiegand,

Kluge

et al. 2022

Preprint

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“…This spectroscopic feature, explained by coherent population trapping (CPT) [2][3][4] of atoms into a quantum dark state [5], can exhibit a linewidth several orders of magnitude lower than the natural linewidth of the optical transitions. CPT has since been implemented in a plethora of applications, including the demonstration of compact [6][7][8][9] and miniaturized cell-based atomic clocks [10], optical frequency references [11][12][13], magnetometers [14], atom laser cooling [15,16], quantum information science [17], or slow-light experiments [18].…”

Section: Introductionmentioning

confidence: 99%

Coherent Population Trapping with High Common-Mode Noise Rejection Using Differential Detection of Simultaneous Dark and Bright Resonances

2023

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Coherent manipulation of atomic states is highly desired in numerous applications spanning from fundamental physics to metrology. In this study, we propose and demonstrate, theoretically and experimentally, the simultaneous observation in a vapor cell of dark and bright resonances that provide, through a differential detection stage, an output coherent population trapping atomic resonance that benefits from a doubled amplitude and high common-mode noise rejection. This advanced spectroscopic scheme might be of interest for the development of high-performance vapor cell atomic clocks, sensors, or high-resolution spectroscopy experiments.

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“…Common experimental techniques for realizing a compact optical clock with thermal atoms in a cell as frequency reference include saturation absorption spectroscopy (SAS) [15][16][17], polarization spectroscopy (PS) [18][19][20], two-photon spectroscopy [21][22][23][24], dualfrequency sub-Doppler spectroscopy (DFSDS) [25][26][27] and modulation transfer spectroscopy (MTS) [28][29][30]. These methods all utilize the interaction between counter-propagating lasers and thermal atoms to generate Doppler-free atomic spectra as the basis of laser stabilization.…”

Section: Introductionmentioning

confidence: 99%

Compact 459 nm Cs cell optical frequency standard with $2.1\times{10}^{-13}/\sqrtτ$ short-term stability

Miao,

Shi,

Zhang

et al. 2022

Preprint

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We achieve a compact optical frequency standard with an extended cavity diode laser locked to the 459 nm 6S 1/2 -7P 1/2 transition of thermal 133 Cs atoms in a φ 10 mm × 50 mm glass cell, using modulation transfer spectroscopy (MTS). The self-estimated frequency stability of this laser is 1.4 × 10 −14 / √ τ . With heterodyne measurement, we verify the linewidth-narrowing effect of MTS locking and measure the frequency stability of the locked laser. The linewidth of each laser is reduced from the free-running 69.6 kHz to 10.3 kHz after MTS stabilization, by a factor of 6.75. The Allan deviation measured via beat detection is 2.1 × 10 −13 / √ τ for each MTS-stabilized laser. In addition, we measure the hyperfine structure of the 7P 1/2 energy level based on the heterodyne measurements, and calculate the magnetic dipole constant A of the Cs 7P 1/2 level to be 94.38(6) MHz, which agrees well with previous measurements. This compact optical frequency standard can also be used in other applications that require high-stability lasers, such as laser interferometry, laser cooling, geodesy, and so on.

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Short-term stability of Cs microcell-stabilized lasers using dual-frequency sub-Doppler spectroscopy

Cited by 15 publications

References 50 publications

Compact Plug and Play Optical Frequency Reference Device Based on Doppler-Free Spectroscopy of Rubidium Vapor

Compact Plug and Play Optical Frequency Reference Device Based on Doppler-Free Spectroscopy of Rubidium Vapor

Coherent Population Trapping with High Common-Mode Noise Rejection Using Differential Detection of Simultaneous Dark and Bright Resonances

Compact 459 nm Cs cell optical frequency standard with $2.1\times{10}^{-13}/\sqrtτ$ short-term stability

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