A compact grating-stabilized diode laser system for atomic physics

Ricci, Leonardo; Weidemüller, Matthias; Esslinger, Tilman; Hemmerich, Andreas; Zimmermann, C.; Vuletić, Vladan; König, W.; Hänsch, Theodor W.

doi:10.1016/0030-4018(95)00146-y

Cited by 366 publications

(218 citation statements)

References 33 publications

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“…The laser system consists of a single master oscillator and four injection-locked slave lasers, all operating a 120 mW Mitshubishi ML101J27 diode heated to 70 C. The master oscillator is a home-built externalcavity diode laser (ECDL) [35], frequency stabilized using saturated absorption spectroscopy in a 6 Li heat pipe [36]. The power from the master laser is distributed over six beams, which can be independently shifted in frequency using ISOMET 1205-C acousto-optic modulators (AOM's).…”

Section: E Laser Systemmentioning

confidence: 99%

High-flux two-dimensional magneto-optical-trap source for cold lithium atoms

et al. 2009

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We demonstrate a novel 2D MOT beam source for cold 6 Li atoms. The source is side-loaded from an oven operated at temperatures in the range 600 T 700 K. The performance is analyzed by loading the atoms into a 3D MOT located 220 mm downstream from the source. The maximum recapture rate of ∼ 10 9 s −1 is obtained for T ≈ 700 K and results in a total of up to 10 10 trapped atoms. The recaptured fraction is estimated to be 30 ± 10% and limited by beam divergence. The most-probable velocity in the beam (αz) is varied from 18 to 70 m/s by increasing the intensity of a push beam. The source is quite monochromatic with a full-width at half maximum velocity spread of 11 m/s at αz = 36 m/s, demonstrating that side-loading completely eliminates beam contamination by hot vapor from the oven. We identify depletion of the low-velocity tail of the oven flux as the limiting loss mechanism. Our approach is suitable for other atomic species.

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Section: E Laser Systemmentioning

confidence: 99%

High-flux two-dimensional magneto-optical-trap source for cold lithium atoms

et al. 2009

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“…In the past years, highly compact [11][12][13][14][15][16][17] and first MEMS-based 18,19 extended-cavity diode lasers as well as compact setups for laser stabilization 20 have been demonstrated, and detailed studies of different types of ECDLs have been conducted. 21,22 In the work presented here, the main challenge thus lies in the realization of a combined ECDL laser and atomic spectrometer within a compact instrument ͑physics package volume Ͻ0.25 l͒ that maintains the advantageous low volume of Rb clocks, but still offers the required state-of-the art laser frequency stability, low noise levels, and high reliability.…”

Section: Design Requirementsmentioning

confidence: 99%

A compact laser head with high-frequency stability for Rb atomic clocks and optical instrumentation

Affolderbach

Mileti

2005

Review of Scientific Instruments

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We present a compact and frequency-stabilized laser head based on an extended-cavity diode laser. The laser head occupies a volume of 200 cm 3 and includes frequency stabilization to Doppler-free saturated absorption resonances on the hyperfine components of the 87 Rb D 2 lines at 780 nm, obtained from a simple and compact spectroscopic setup using a 2 cm 3 vapor cell. The measured frequency stability is ഛ2 ϫ 10 −12 over integration times from 1 s to 1 day and shows the potential to reach 2 ϫ 10 −13 over 10 2 −10 5 s. Compact laser sources with these performances are of great interest for applications in gas-cell atomic frequency standards, atomic magnetometers, interferometers and other instruments requiring stable and narrow-band optical sources.

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“…Magnetooptical traps ͑MOT͒ can be made using simple, inexpensive, external cavity diode lasers [1][2][3] at a cost suitable for undergraduate laboratories. 4 Atoms precooled in a MOT can be cooled to quantum degeneracy in a variety of novel, simple traps suited for a number of applications.…”

Section: Introductionmentioning

confidence: 99%

Modified control software for imaging ultracold atomic clouds

Whitaker

Sharma

Brown

2006

Review of Scientific Instruments

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A charge-coupled device ͑CCD͒ camera capable of taking high-quality images of ultracold atomic samples can often represent a significant portion of the equipment costs in atom trapping experiment. We have modified the commercial control software of a CCD camera designed for astronomical imaging to take absorption images of ultracold rubidium clouds. This camera is sensitive at 780 nm and has been modified to take three successive 16-bit images at full resolution. The control software can be integrated into a Matlab graphical user interface with fitting routines written as Matlab functions. This camera is capable of recording high-quality images at a fraction of the cost of similar cameras typically used in atom trapping experiments.

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A compact grating-stabilized diode laser system for atomic physics

Cited by 366 publications

References 33 publications

High-flux two-dimensional magneto-optical-trap source for cold lithium atoms

High-flux two-dimensional magneto-optical-trap source for cold lithium atoms

A compact laser head with high-frequency stability for Rb atomic clocks and optical instrumentation

Modified control software for imaging ultracold atomic clouds

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