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Kolachevsky N, Alnis J, Parthey CG, et al. Low phase noise diode laser oscillator for 1S-2S spectroscopy in atomic hydrogen. Opt Lett. 2011;36(21):4299-301doi: 10.1364/OL.36.004299.
Kolachevsky, N., Alnis, J., Parthey, C. G., Matveev, A., Landig, R., & Hänsch, T. W. (2011). Low phase noise diode laser oscillator for 1S-2S spectroscopy in atomic hydrogen. Optics letters, 36(21), 4299-301. https://doi.org/10.1364/OL.36.004299
Kolachevsky, N, et al. "Low phase noise diode laser oscillator for 1S-2S spectroscopy in atomic hydrogen." Optics letters vol. 36,21 (2011): 4299-301. doi: https://doi.org/10.1364/OL.36.004299
Kolachevsky N, Alnis J, Parthey CG, Matveev A, Landig R, Hänsch TW. Low phase noise diode laser oscillator for 1S-2S spectroscopy in atomic hydrogen. Opt Lett. 2011 Nov 01;36(21):4299-301. doi: 10.1364/OL.36.004299. PMID: 22048397.
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Opt Lett. 2011 Nov 01;36(21):4299-301. doi: 10.1364/OL.36.004299.

Low phase noise diode laser oscillator for 1S-2S spectroscopy in atomic hydrogen.

Optics letters

N Kolachevsky, J Alnis, C G Parthey, A Matveev, R Landig, T W Hänsch

Affiliations

  1. Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany. [email protected]

PMID: 22048397 DOI: 10.1364/OL.36.004299

Abstract

We report on a low-noise diode laser oscillator at 972 nm actively stabilized to an ultrastable vibrationally and thermally compensated reference cavity. To increase the fraction of laser power in the carrier we designed a 20 cm long external cavity diode laser with an intracavity electro-optical modulator. The fractional power in the carrier reaches 99.9%, which corresponds to an rms phase noise of φ(rms)2=1 mrad2 in 10 MHz bandwidth. Using this oscillator, we recorded 1S-2S spectra in atomic hydrogen and have not observed any significant loss of the excitation efficiency due to phase noise multiplication in the three consecutive two-photon processes.

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