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We present a method of laser frequency stabilization based on the linear dichroism signal in a transverse magnetic field. The method is similar to the DAVLL (Dichroic Atomic Vapor Laser Lock) method. It differs from DAVLL and from its…

Atomic Physics · Physics 2026-04-28 M. V. Petrenko , A. S. Pazgalev , A. K. Vershovskii

We report on the development of a diode laser system - the `Faraday laser' - using an atomic Faraday filter as the frequency-selective element. In contrast to typical external-cavity diode laser systems which offer tunable output frequency…

Atomic Physics · Physics 2016-11-03 James Keaveney , William J Hamlyn , Charles S Adams , Ifan G Hughes

We herein report a simultaneous frequency stabilization of two 780-nm external cavity diode lasers using a precision wavelength meter (WLM). The laser lock performance is characterized by the Allan deviation measurement in which we find…

Achieving precise and adjustable control over laser frequency is an essential requirement in numerous applications such as precision spectroscopy, quantum control, and sensing. In many such applications it is desired to stabilize a laser…

Applied Physics · Physics 2024-05-22 Heleni Krelman , Ori Nefesh , Kfir Levi , Douglas G. Bopp , Songbai Kang , John E. Kitching , Liron Stern

A crucial step towards enabling real-world applications for quantum sensing devices such as Rydberg atom electric field sensors is reducing their size, weight, power, and cost (SWaP-C) requirements without significantly reducing…

We report the precise characterization of the optical potential obtained by injecting a distributed-feedback erbium-doped fiber laser (DFB EDFL) at 1560 nm to the transversal modes of a folded optical cavity. The optical potential was…

Atomic Physics · Physics 2015-05-05 A. Bertoldi , S. Bernon , T. Vanderbruggen , A. Landragin , P. Bouyer

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

Precisely stabilizing laser frequency is crucial for advancing laser technology and unlocking the full potential of various quantum technologies. Here, we propose a compact device for stabilizing frequency of a semiconductor laser through…

Optics · Physics 2025-05-07 M. R. Mahani , Igor A. Nechepurenko , Yasmin Rahimof , Andreas Wicht

This paper presents a laser amplifier based on an antireflection coated laser diode. This laser amplifier operates without active temperature stabilisation at any wavelength within its gain profile without restrictions on the injection…

Instrumentation and Detectors · Physics 2017-10-17 Vasiliki Bolpasi , Wolf von Klitzing

We report on a simple and robust technique to generate a dispersive signal which serves as an error signal to electronically stabilize a monomode cw laser emitting around an atomic resonance. We explore nonlinear effects in the laser beam…

Two extended cavity laser diodes are phase-locked, thanks to an intra-cavity electro-optical modulator. The phase-locked loop bandwidth is on the order of 10 MHz, which is about twice larger than when the feedback correction is applied on…

We describe the short-term frequency stability characterization of external-cavity diode lasers stabilized onto the 6S$_{1/2}$-7P$_{1/2}$ transition of Cs atom at 459 nm, using a microfabricated vapor cell. The laser beatnote between two…

Atomic Physics · Physics 2025-01-31 E. Klinger , C. M. Rivera-Aguilar , A. Mursa , Q. Tanguy , N. Passilly , R. Boudot

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

The optical manipulation of Ba$^{+}$ ions is mainly performed by a 493 nm laser for the S$_{1/2}$-P$_{1/2}$ transition and a 650 nm laser for the P$_{1/2}$-D$_{3/2}$ transition. Since the branching ratio between the 493 nm and 650 nm…

Atomic Physics · Physics 2020-01-10 Tian Xie , Naijun Jin , Ye Wang , Junhua Zhang , Mark Um , Pengfei Wang , Kihwan Kim

High finesse Fabry-Perot(FP) cavity is a very important frequency reference for laser stabiliza- tion, and is widely used for applications such as precision measurement, laser cooling of ions or molecules. But the non-linear response of the…

Optics · Physics 2016-10-04 Wenhao Bu , Mengke Liu , Dizhou Xie , Bo Yan

Tunable lasers are essential for optical communication, spectroscopy, and precision sensing, where flexible and fast control of the laser wavelength is needed. However, conventional tunable laser systems often rely on mechanical actuation,…

A stable reference light source based on an LED (Light Emission Diode) is presented for stabilizing the conversion gain of the opto-electronic system of a gamma- and fast-neutron radiographic and tomographic imaging device. A constant…

Instrumentation and Detectors · Physics 2010-02-09 M. Weierganz , D. Bar , B. Bromberger , V. Dangendorf , G. Feldman , M. B. Goldberg , M. Lindemann , I. Mor , K. Tittelmeier , D. Vartsky

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 develop a simplified light source at 461 nm for laser cooling of Sr without frequency-doubling crystals but with blue laser diodes. An anti-reflection coated blue laser diode in an external cavity (Littrow) configuration provides an…

Atomic Physics · Physics 2013-06-10 Yosuke Shimada , Yuko Chida , Nozomi Ohtsubo , Takatoshi Aoki , Yoshio Torii

Direct phase modulation via optical injection is a newly developed method for coding the phase of a gain-switched laser, which meets high requirements placed on transmitters for quantum key distribution: compactness, low losses,…