Sub-kHz linewidth VECSEL for cold atom experiments

Moriya, Paulo Hisao; Hastie, Jennifer E.

doi:10.1364/assl.2018.ath5a.4

Cited by 2 publications

(1 citation statement)

References 11 publications

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“…Up to 160 mW output power is available before fiber-coupling. The beat note peak with this stabilized output and the VECSEL was recorded in a spectrum analyzer, resulting in a FWHM of (200 ± 2) Hz [41] [see Fig. 6(b)].…”

Section: Frequency and Intensity Noise Analysismentioning

confidence: 99%

Sub-kHz-linewidth VECSELs for cold atom experiments

et al. 2020

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We report and characterize sub-kHz linewidth operation of an AlGaInP-based VECSEL system suitable for addressing the narrow cooling transition of neutral strontium atoms at 689 nm. When frequency-stabilized to a standard air-spaced Fabry-Perot cavity (finesse 1000) via the Pound-Drever-Hall (PDH) technique, it delivers output power >150 mW in a circularly-symmetric single transverse mode with low frequency and intensity noise. The optical field was reconstructed from the frequency noise error signal via autocorrelation and the Wiener-Khintchine theorem, leading to an estimated linewidth of (125 ± 2) Hz. Optical beat note measurements were performed against a commercial locked laser system and a second, almost identical, VECSEL system resulting in linewidths of 200 Hz and 160 Hz FWHM, respectively. To the best of our knowledge, this is the first demonstration of a VECSEL compatible with the narrowest of lines (few hundred Hz) used for cooling and trapping atoms and ions.

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Section: Frequency and Intensity Noise Analysismentioning

confidence: 99%

Sub-kHz-linewidth VECSELs for cold atom experiments

et al. 2020

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Zinc-indiffused MgO:PPLN waveguides for blue/UV generation via VECSEL pumping

Gray¹,

Woods²,

Carpenter³

et al. 2020

Appl. Opt.

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We present the design and characterization of a zinc-indiffused periodically poled lithium-niobate ridge waveguide for second-harmonic generation of ∼ 390 n m light from 780 nm. We use a newly developed, broadband near-infrared vertical external-cavity surface-emitting laser (VECSEL) to investigate the potential for lower-footprint nonlinear optical pump sources as an alternative to larger commercial laser systems. We demonstrate a VECSEL with an output power of 500 mW, containing an intracavity birefringent filter for spectral narrowing and wavelength selection. In this first demonstration of using a VECSEL to pump a nonlinear waveguide, we present the ability to generate 1 mW of ∼ 390 n m light with further potential for increased efficiency and size reduction.

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Sub-kHz linewidth VECSEL for cold atom experiments

Abstract: We report sub-kHz linewidth operation of a frequency-stabilized, AlGaInP-based vertical-external-cavity surface-emitting laser (VECSEL) at 689nm, suitable for Strontium cold atom experiments. 170mW was emitted with linewidth ≤200Hz, determined via an optical beat note measurement.

Cited by 2 publications

References 11 publications

Sub-kHz-linewidth VECSELs for cold atom experiments

Sub-kHz-linewidth VECSELs for cold atom experiments

Zinc-indiffused MgO:PPLN waveguides for blue/UV generation via VECSEL pumping

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