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Related papers: Small-sized Dichroic Atomic Vapor Laser Lock (DAVL…

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This article theoretically proposes a new dual interferometer technique to accurately calibrate two laser frequencies simultaneously using four-wave mixing in an alkali metal vapor cell. The two frequency-calibrated lasers are mixed to…

Atomic Physics · Physics 2025-07-08 Sreeshna Subhash , Greeshma Gopinath , Sankar Davuluri

In current research, laser Doppler vibrometer (LDV) as a new diagnostic tool is utilized for non-destructive testing of the automotive equipment. LDV technique is working based on measurement of the Doppler shift of a moving object in an…

Signal Processing · Electrical Eng. & Systems 2023-04-24 Fatemeh Rezaei

A vector dual-wavelength rectangular-shape laser (RSL) based on a long fiber taper deposited with reduced graphene oxide is proposed, where the nonlinearity is enhanced due to large evanescent-field-interacting length and strong field…

Optics · Physics 2015-06-19 Lei Gao , Tao Zhu , Jing Zeng , Wei Huang , Min Liu

We report on a design of a compact laser system composed of an extended cavity diode laser with high passive stability and a pre-filter Fabri-Perot cavity. The laser is frequency stabilized relative to the cavity using a serrodyne technique…

Quantum Gases · Physics 2015-05-20 Emil Kirilov , Manfred J. Mark , Maximilian Segl , Hanns-Christoph Nägerl

External-cavity diode lasers are ubiquitous in atomic physics and a wide variety of other scientific disciplines, due to their excellent affordability, coherence length and versatility. However, for higher power applications, the…

Instrumentation and Detectors · Physics 2021-07-08 Andrew Daffurn , Rachel F. Offer , Aidan S. Arnold

We report the design and performance of a Littrow-type 671 nm External Cavity Diode Laser (ECDL) that delivers output power greater than 150 mW and features enhanced passive stability. The main body of the ECDL is constructed using titanium…

Optics · Physics 2023-03-03 Sourav Dutta , Bubai Rahaman

Laser stabilization sits at the heart of many precision scientific experiments and applications, including quantum information science, metrology and atomic timekeeping. These systems narrow the laser linewidth and stabilize the carrier by…

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

We demonstrate laser frequency stabilization using a high-Q MgF2 crystalline whispering gallery mode resonator coupled with a tapered fiber. We discovered that the tapered fiber, acting as a microcantilever, exhibits mechanical resonance…

Optics · Physics 2023-12-06 Yaohui Xu , Xiaolan Liu , Wujun Li , Haotian Wang , Jun Guo , Jie Ma , Jianing Zhang , Deyuan Shen

We demonstrate a technique to lock the frequency of a laser to a transition between two excited states in Rb vapor in the presence of a weak magnetic field. We use a ladder configuration from specific hyperfine sublevels of the 5S 1/2, 5P…

Optics · Physics 2015-05-13 F. E. Becerra , R. T. Willis , S. L. Rolston , L. A. Orozco

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…

We have developed a technique in which Rb atomic response to weak magnetic field is high and an efficient rotation of linearly polarized laser beam results in efficient magnetometry. 85Rb isotope has been used for the magnetometry in an…

Atomic Physics · Physics 2011-01-21 S. M. Iftiquar

We present here a simple laser system for a laser cooled atom interferometer, where all functions (laser cooling, interferometry and detection) are realized using only two extended cavity laser diodes, amplified by a common tapered…

Atomic Physics · Physics 2015-06-22 Sébastien Merlet , Laurent Volodimer , Michel Lours , Franck Pereira Dos Santos

We demonstrate a straight-forward technique to measure the linewidth of a grating-stabilized diode laser system---known as an external cavity diode laser (ECDL)---by beating the output of two independent ECDLs in a Michelson interferometer,…

Atomic Physics · Physics 2015-10-14 Lal Muanzuala , Harish Ravi , Karthik Sylvan , Vasant Natarajan

We present a novel and simple method of stabilizing the laser phase and frequency by polarization spectroscopy of an atomic vapor. In analogy to the Pound-Drever-Hall method, which uses a cavity as a memory of the laser phase, this method…

Atomic Physics · Physics 2012-09-05 Yoshio Torii , Hideyasu Tashiro , Nozomi Ohtsubo , Takatoshi Aoki

We report on a reliable laser system for cooling magnesium atoms in the metastable 3P manifold. The three relevant transitions coupling the 3P to the 3D manifold are near 383 nm and seperated by several hundred GHz. The laser system…

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 report the fabrication of alkali-metal vapor cells using femtosecond laser machining. This laser-written vapor-cell (LWVC) technology allows arbitrarily-shaped 3D interior volumes and has potential for integration with photonic…

This tutorial provides a hands-on entry point about laser locking for atomic vapor research and related research such as laser cooling. We furthermore introduce common materials and methods for the fabrication of vapor cells as a tool for…

Atomic Physics · Physics 2024-06-07 Max Mäusezahl , Fabian Munkes , Robert Löw

Ultra-low frequency noise lasers have been widely used in laser-based experiments. Most narrow-linewidth lasers are implemented by actively suppressing their frequency noise through a frequency noise servo loop (FNSL). The loop bandwidths…