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We report on the development of a frequency modulatable 795 nm semiconductor laser based on self-injection locking to a high quality factor whispering gallery mode microresonator. The laser is characterized with residual amplitude…

We present a novel approach to precisely synthesize arbitrary polarization states of light with a high modulation bandwidth. Our approach consists of superimposing two laser light fields with the same wavelength, but with opposite circular…

We describe an apparatus for the stabilization of laser frequencies that prevents long term frequency drifts. A Fabry-Perot interferometer is thermostated by referencing it to a stabilized He-Ne laser (master), and its length is scanned…

Instrumentation and Detectors · Physics 2013-09-02 A. Rossi , V. Biancalana. B. Mai , L. Tomassetti

We demonstrate a free-space amplitude modulator for mid-infrared radiation (lambda=9.6 um) that operates at room temperature up to at least 20 GHz (above the -3dB cutoff frequency measured at 8.2 GHz). The device relies on the ultra-fast…

We present the design, realization, characterization and testing of an industrial prototype of a laser system, which is based on frequency doubling of telecom lasers and features all key functionalities to drive a cold atom space…

Instrumentation and Methods for Astrophysics · Physics 2019-12-09 Romain Caldani , Sébastien Merlet , Franck Pereira Dos Santos , Guillaume Stern , Anne-Sophie Martin , Bruno Desruelle , Vincent Ménoret

Field-deployable integrated photonic devices co-packaged with electronics will enable important applications such as optical interconnects, quantum information processing, precision measurements, spectroscopy, and microwave generation.…

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

Optical clocks require an ultra-stable laser to probe and precisely measure the frequency of the narrow-linewidth clock transition. We introduce a portable ultraviolet (UV) laser system for use in an aluminum quantum logic clock,…

We report the 1-D cooling of $^{85}$Rb atoms using a velocity-dependent optical force based upon Ramsey matter-wave interferometry. Using stimulated Raman transitions between ground hyperfine states, 12 cycles of the interferometer sequence…

Atomic Physics · Physics 2015-08-19 Alexander Dunning , Rachel Gregory , James Bateman , Matthew Himsworth , Tim Freegarde

We present an interferometric inertial sensor that utilizes two counter-propagating atomic beams with transverse two-dimensional cooling. By employing three parallel and spatially aligned Raman laser beams for Doppler-sensitive Raman…

Atomic Physics · Physics 2025-07-29 Pei-Qiang Yan , Wei-Chen Jia , Ke Shen , Yue Xin , Yan-Ying Feng

A gas of ultracold atoms probed with laser light is a nearly-ideal experimental realization of a medium of resonant point-like scatterers, a key problem from condensed matter to biology or photonics. Yet, several recent experiments have…

Quantum Gases · Physics 2026-02-17 R. Vatré , R. Lopes , J. Beugnon , F. Gerbier

Stable narrow-linewidth light sources play a significant role in many precision optical systems. Electro-optic laser frequency stabilization systems, such as the well-known Pound-Drever-Hall (PDH) technique, have been key components of…

Optics · Physics 2024-03-05 Mohamad Hossein Idjadi , Kwangwoong Kim

Atom interferometry is the most successful technique for precision metrology. However, current interferometers using ultracold atoms allows one to probe the interference pattern only momentarily and has finite duty cycle, resulting in an…

Atomic Physics · Physics 2018-10-31 Sumit Sarkar , Jay Mangaonkar , Chetan Vishwakarma , Umakant D. Rapol

We demonstrate a self-homodyne detection method to stabilize a continuous-wave 1550-nm laser to a 1-km optical fiber delay line, achieving a frequency instability of 6.3x10<sup>-15</sup> at a 16-ms averaging time. This result, limited by…

Optics · Physics 2025-02-10 Igju Jeon , Woosong Jeong , Changmin Ahn , Jungwon Kim

In the presence of Earth gravity and gravity-gradient forces, centrifugal and Coriolis forces caused by the Earth rotation, the phase of the time-domain atom interferometers is calculated with accuracy up to the terms proportional to the…

Atomic Physics · Physics 2009-11-11 B. Dubetsky , M. A. Kasevich

Performing interferometry in an optical lattice formed by standing waves of light offers potential advantages over its free-space equivalents since the atoms can be confined and manipulated by the optical potential. We demonstrate such an…

We analyze the optical spring characteristics of a double pumped Fabry-Perot cavity. A double-resonance optical spring occurs when the optical spring frequency and the detuning frequency of the cavity coincide. We formulate a simple…

General Relativity and Quantum Cosmology · Physics 2013-05-29 Andrey Rakhubovsky , Stefan Hild , Sergey Vyatchanin

We have demonstrated stabilization of a fiber-optic Mach-Zehnder interferometer, with a centimeter-scale path difference, to the transmission minimum for the carrier wave of a frequency-modulated laser beam. A time-averaged extinction of 32…

We report a simple technique for stabilization of a laser frequency at the wings of an atomic resonance. The reference signal used for stabilization issues from interference effects obtained in a low-quality cavity filled with a resonant…

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