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We demonstrate an optical frequency comb based on an erbium-doped-fiber femtosecond laser with the nonlinear polarization evolution scheme. The repetition rate of the laser is about 209 MHz. By controlling an intra-cavity electro-optic…

Optics · Physics 2018-02-07 Y. Zhang , L. Yan , W. Zhao , S. Meng , S. Fan , L. Zhang , G. Guo , S. Zhang , H. Jiang

We have performed sub-Doppler spectroscopy on the narrow intercombination line of cold calcium atoms using the amplified output of a femtosecond laser frequency comb. Injection locking of a 657-nm diode laser with a femtosecond comb allows…

Atomic Physics · Physics 2010-03-19 T. M. Fortier , Y. Le Coq , J. E. Stalnaker , D. Ortega , S. A. Diddams , C. W. Oates , L. Hollberg

We propose a scheme for state-insensitive trapping of neutral atoms by using light with two independent wavelengths. In particular, we describe the use of trapping and control lasers to minimize the variance of the potential experienced by…

Atomic Physics · Physics 2015-05-18 Bindiya Arora , M. S. Safronova , Charles W. Clark

We introduce a new parallelized approach to photothermal microscopy that utilizes mid-infrared dual-comb lasers, enabling simultaneous measurements at hundreds of wavelengths. This technology allows for high-speed, label-free chemical…

We demonstrate a high-stability laser offset-frequency locking technique based on a balanced filter discriminator. The beat note between two 852 nm external-cavity diode lasers is down-converted in two parallel arms using local-oscillator…

We present a high-flux source of cold ytterbium atoms that is robust, lightweight and low-maintenance. Our apparatus delivers $10^9$ atoms/s into a 3D magneto-optical trap without requiring water-cooling or high current power supplies. We…

Atomic Physics · Physics 2021-02-25 E. Wodey , R. J. Rengelink , C. Meiners , E. M. Rasel , D. Schlippert

We use two femtosecond Erbium-doped fiber lasers with slightly different repetition rates to perform a modern type of Fourier transform spectroscopy without moving parts. The measurements are done in real time, and it takes less than 50…

Two efficient and isotope-selective resonant two-photon ionization techniques for loading barium ions into radio-frequency (RF)-traps are demonstrated. The scheme of using a strong dipole-allowed transition at \lambda=553 nm as a first step…

Atomic Physics · Physics 2017-08-23 G. Leschhorn , T. Hasegawa , T. Schaetz

The phase information provided by the beat note between frequency combs and two continuous-wave lasers is used to extrapolate the phase evolution of comb modes found in a spectral region obtained via nonlinear broadening. This thereafter…

We demonstrate 1D simultaneous laser cooling of $^{87}$Rb and $^{85}$Rb atoms using an optical frequency comb. By adjusting the pulse repetition frequency and the offset frequency, the frequency comb spectrum is tuned to ensure that two…

Atomic Physics · Physics 2020-09-02 D. Buhin , D. Kovacic , F. Schmid , M. Kruljac , V. Vulic , T. Ban , D. Aumiler

Due to its fast and high resolution characteristics, dual-comb spectroscopy has attracted an increasing amount of interest since its first demonstration. In the terahertz frequency range where abundant absorption lines (finger prints) of…

From the interaction between a frequency comb and an atomic qubit, we derive quantum protocols for the determination of the carrier-envelope offset phase, using the qubit coherence as a reference, and without the need of frequency doubling…

Quantum Physics · Physics 2014-03-05 Andrea Cadarso , Jordi Mur-Petit , Juan José García-Ripoll

This paper reports on a detailed performance characterization of a recently developed optical single-sideband (OSSB) laser system based on an IQ modulator and second-harmonic generation for rubidium atom interferometry experiments. The…

Atomic Physics · Physics 2020-04-27 Clemens Rammeloo , Lingxiao Zhu , Yu-Hung Lien , Kai Bongs , Michael Holynski

Atom interferometric inertial sensors offer exceptional sensitivity but are fundamentally constrained by the periodic phase response of matter-wave interference, which imposes an intrinsic half-fringe dynamic-range limit and prevents…

We propose a scheme based on a heterodyne laser link that allows for long baseline gravitational wave detection using atom interferometry. While the baseline length in previous atom-based proposals is constrained by the need for a reference…

Atomic Physics · Physics 2016-10-05 Jason M. Hogan , Mark A. Kasevich

The trapping of ultracold atoms using two-colour evanescent light waves formed by propagating modes of suspended optical rib waveguides is modelled in different configurations. Reducing the anisotropy of the two-colour evanescent optical…

Atomic Physics · Physics 2025-08-01 Yuri B. Ovchinnikov

Continuous wave (CW) lasers are the enabling technology for producing ultracold atoms and molecules through laser cooling and trapping. The resulting pristine samples of slow moving particles are the de facto starting point for both…

Atomic Physics · Physics 2016-10-19 A. M. Jayich , X. Long , W. C. Campbell

We report a high-energy, bidirectional, dissipative soliton mode-locked fiber laser operating in the 1550 nm normal-dispersion regime. By leveraging intracavity dispersion management and a Lyot filtering mechanism, the laser achieves…

Optics · Physics 2026-02-17 Mingjun Wang , Zhangru Shi , Anshuang Wang , Bowen Li

Ultrabroadband electro-optic sampling with few-cycle optical pulses is known to be an extremely sensitive technique to detect electric field amplitudes. By combining this method with dual-comb spectroscopy and with a new class of ultrafast…

We present a machine built for experiments with ultracold mixtures of strontium and lithium atoms. The machine includes a science vacuum chamber and the relevant laser systems for cooling and trapping the atoms. With this machine, we…

Quantum Gases · Physics 2019-04-11 Xiaobin Ma , Zhuxiong Ye , Liyang Xie , Zhen Guo , Li You , Meng Khoon Tey
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