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

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

doi:10.1364/OL.36.004299

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

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

^*Corresponding author for this work

Max Planck Institute of Quantum Optics
Lebedev Physical Institute
Swiss Federal Institute of Technology Zurich
Ludwig Maximilian University of Munich

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

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 φ²_rms = 1mrad²in 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.

Original language	English
Pages (from-to)	4299-4301
Number of pages	3
Journal	Optics Letters
Volume	36
Issue number	21
DOIs	https://doi.org/10.1364/OL.36.004299
Publication status	Published - 1 Nov 2011
Externally published	Yes

OECD Field of Science

1.3 Physical Sciences

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10.1364/OL.36.004299

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title = "Low phase noise diode laser oscillator for 1S-2S spectroscopy in atomic hydrogen",

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 φ2rms = 1mrad2in 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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T1 - Low phase noise diode laser oscillator for 1S-2S spectroscopy in atomic hydrogen

AU - Kolachevsky, N.

AU - Alnis, J.

AU - Parthey, C. G.

AU - Matveev, A.

AU - Landig, R.

AU - Hänsch, T. W.

PY - 2011/11/1

Y1 - 2011/11/1

N2 - 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 φ2rms = 1mrad2in 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.

AB - 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 φ2rms = 1mrad2in 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.

UR - https://www.scopus.com/pages/publications/80455127199

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DO - 10.1364/OL.36.004299

M3 - Article

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EP - 4301

JO - Optics Letters

JF - Optics Letters

IS - 21

ER -

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

Abstract

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