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Topological lasers are of growing interest as a way to achieve disorder-robust single mode lasing using arrays of coupled resonators. We study lasing in a two-dimensional coupled resonator lattice exhibiting transitions between trivial and…

Optics · Physics 2020-07-07 Sinan Gundogdu , Juzar Thingna , Daniel Leykam

We present the characterization of a laser frequency stabilization scheme using a state-of-the-art wavelength meter based on solid Fizeau interferometers. For a frequency-doubled Ti-sapphire laser operated at 461 nm, an absolute Allan…

Instrumentation and Detectors · Physics 2018-05-09 Luc Couturier , Ingo Nosske , Fachao Hu , Canzhu Tan , Chang Qiao , Y. H. Jiang , Peng Chen , Matthias Weidemüller

Laser power instability, encompassing random jitter and slow drift, severely limits the performance of optically pumped magnetometers (OPMs) in detecting ultra-weak magnetic fields, especially in large-scale OPM arrays for…

Systems and Control · Electrical Eng. & Systems 2025-06-11 Yanpei Shi , Jingxuan Zhang , Zhuo Shi , Chenyao Zhang , Yuze Guo , Rui Feng

We combined experimental and theoretical investigations of an effective two-level atomic system operating in the near-infrared telecom wavelength regime, realized using hot rubidium vapor confined within a sub-micron-thick cell. In this…

Quantum Physics · Physics 2026-01-26 Gilad Orr , Golan Ben-Ari , Eliran Talker

Photoassociation with short laser pulses has been proposed as a technique to create ultracold ground state molecules. A broad-band excitation seems the natural choice to drive the series of excitation and deexcitation steps required to form…

Atomic Physics · Physics 2010-09-21 Christiane P. Koch , Mamadou Ndong , Ronnie Kosloff

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

We present a scheme to realize two-direction optical switch by a single-mode optical cavity containing some four-level atoms. The high switching efficiency can be obtained through low photon loss and large third-order nonlinear…

Optics · Physics 2018-07-04 Miaodi Guo , Xuemei Su

State-insensitive dipole trapping of multilevel atoms can be achieved by an appropriate choice of the wavelength of the trapping laser, so that the interaction with the different transitions results in equal AC Stark shifts for the ground…

Atomic Physics · Physics 2015-10-28 M. M. Metbulut , F. Renzoni

We demonstrate phase locking of two ultraviolet laser sources by modulating a fundamental infrared laser with 4th-order sidebands using an electro-optic modulator and phase locking of one sideband to a second fundamental infrared laser.…

We stabilized the frequencies of two independent Nd:YAG lasers to two adjacent longitudinal modes of a high-finesse Fabry-P\'erot resonator and obtained a beat frequency instability of 6.3 mHz at an integration time of 40 s. Referred to a…

Optics · Physics 2012-12-19 Qun-Feng Chen , Alexander Nevsky , Stephan Schiller

Simultaneous strong coherent pumping of the two transitions of a V-level atom with very differentdecay rates has been predicted to create almost perfect inversion on the narrower transition. Usingthe example of the blue and red transitions…

Quantum Physics · Physics 2021-02-03 Christoph Hotter , David Plankensteiner , Helmut Ritsch

Strongly magnetizing a plasma adds a range of waves that do not exist in unmagnetized plasmas and enlarges the laser-plasma interaction (LPI) landscape. In this paper, we use particle-in-cell (PIC) simulations to investigate strongly…

Plasma Physics · Physics 2022-11-23 Lili Manzo , Matthew R. Edwards , Yuan Shi

A combination of optical feedback self-locking of a continuous-wave distributed feedback diode laser to a V-shaped high finesse cavity, laser phase modulation at a frequency equal to the free spectral range of the V-cavity and detection of…

Optics · Physics 2015-06-12 Vasili L. Kasyutich , Markus W. Sigrist

We report in detail the design process and performance of an auto-locking ultra-stable laser with sub-hertz linewidth at the first time. The laser frequency is automatically stabilized to an optical reference cavity with a home-made…

Instrumentation and Detectors · Physics 2022-03-22 D. Jiao , G. Xu , J. Gao , X. Deng , J. Liu , Q. Zang , X. Zhang , R. Dong , T. Liu , S. Zhang

Efficient excitation of a single two-level system usually requires that the driving field is at the same frequency as the atomic transition. However, the scattered laser light in solid-state implementations can dominate over the single…

Light from a Tm,Ho:YLF laser operating at 2051 nm is frequency doubled then coupled into a high Fabry-Perot cavity with manufacturer quoted finesse in excess of 300,000. The frequency of the laser is stabilized using the Pound-Drever-Hall…

Instrumentation and Detectors · Physics 2011-05-24 Adam Kleczewski , Matthew Hoffman , Eric Magnuson , Boris Blinov , Norval Fortson

We present the complete characterization of a laser setup for rubidium cooling dedicated to space applications. The experimental setup is realized with commercial off-the-shelf fiber components suitable for space applications. By frequency…

Atomic Physics · Physics 2014-08-29 Thomas Lévèque , Laura Antoni-Micollier , Benoit Faure , Jacques Berthon

The combination of ultra-cold atomic clouds with the light fields of optical cavities provides a powerful model system for the development of new types of laser cooling and for studying cooperative phenomena. These experiments critically…

Atomic Physics · Physics 2008-01-29 Simone Bux , Gordon Krenz , Sebastian Slama , Claus Zimmermann , Philippe W. Courteille

In this paper we present a technique for the precise measurement of electric dipole allowed transitions in trapped ions. By applying a probe and a cooling laser in quick succession, the full transition can be probed without causing…

Atomic Physics · Physics 2015-06-19 Amy Gardner , Kevin Sheridan , William Groom , Nicolas Seymour-Smith , Matthias Keller

Femtosecond coherent multidimensional spectroscopy is demonstrated for an ultracold gas. For this, a setup for phase modulation spectroscopy is used to probe the $3^2\mathrm{S}_{1/2} - 2^2\mathrm{P}_{1/2, 3/2}$ transition in an 800…

Atomic Physics · Physics 2023-01-16 Friedemann Landmesser , Tobias Sixt , Katrin Dulitz , Lukas Bruder , Frank Stienkemeier
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