Interferometric, modulation-free laser stabilization

Nick P. Robins; B. J.J. Slagmolen; D. A. Shaddock; J. D. Close; M. B. Gray

doi:10.1364/OL.27.001905

Interferometric, modulation-free laser stabilization

Nick P. Robins^*, B. J.J. Slagmolen, D. A. Shaddock, J. D. Close, M. B. Gray

^*Corresponding author for this work

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

36 Citations (Scopus)

Abstract

We demonstrate novel modulation-free frequency locking of a diode laser, utilizing a simple Sagnac interferometer to create an error signal from saturated-absorption spectroscopy. The interference condition at the output of the Sagnac is strongly affected by the sharp dispersion feature near an atomic resonance. Slight misalignment of the interferometer and subsequent spatially selective, or tilt, detection allows this phase change to be converted into an error signal. Tilt locking has significant advantages over previously described methods, as it requires only a small number of low-cost optical components and a detector. In addition, the system has the potential to be constructed as a plug-and-play fiber-coupled monolithic device to provide submegahertz stability for lasers in the commercial market.

Original language	English
Pages (from-to)	1905-1907
Number of pages	3
Journal	Optics Letters
Volume	27
Issue number	21
DOIs	https://doi.org/10.1364/OL.27.001905
Publication status	Published - 1 Nov 2002

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title = "Interferometric, modulation-free laser stabilization",

abstract = "We demonstrate novel modulation-free frequency locking of a diode laser, utilizing a simple Sagnac interferometer to create an error signal from saturated-absorption spectroscopy. The interference condition at the output of the Sagnac is strongly affected by the sharp dispersion feature near an atomic resonance. Slight misalignment of the interferometer and subsequent spatially selective, or tilt, detection allows this phase change to be converted into an error signal. Tilt locking has significant advantages over previously described methods, as it requires only a small number of low-cost optical components and a detector. In addition, the system has the potential to be constructed as a plug-and-play fiber-coupled monolithic device to provide submegahertz stability for lasers in the commercial market.",

author = "Robins, {Nick P.} and Slagmolen, {B. J.J.} and Shaddock, {D. A.} and Close, {J. D.} and Gray, {M. B.}",

year = "2002",

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doi = "10.1364/OL.27.001905",

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T1 - Interferometric, modulation-free laser stabilization

AU - Robins, Nick P.

AU - Slagmolen, B. J.J.

AU - Shaddock, D. A.

AU - Close, J. D.

AU - Gray, M. B.

PY - 2002/11/1

Y1 - 2002/11/1

N2 - We demonstrate novel modulation-free frequency locking of a diode laser, utilizing a simple Sagnac interferometer to create an error signal from saturated-absorption spectroscopy. The interference condition at the output of the Sagnac is strongly affected by the sharp dispersion feature near an atomic resonance. Slight misalignment of the interferometer and subsequent spatially selective, or tilt, detection allows this phase change to be converted into an error signal. Tilt locking has significant advantages over previously described methods, as it requires only a small number of low-cost optical components and a detector. In addition, the system has the potential to be constructed as a plug-and-play fiber-coupled monolithic device to provide submegahertz stability for lasers in the commercial market.

AB - We demonstrate novel modulation-free frequency locking of a diode laser, utilizing a simple Sagnac interferometer to create an error signal from saturated-absorption spectroscopy. The interference condition at the output of the Sagnac is strongly affected by the sharp dispersion feature near an atomic resonance. Slight misalignment of the interferometer and subsequent spatially selective, or tilt, detection allows this phase change to be converted into an error signal. Tilt locking has significant advantages over previously described methods, as it requires only a small number of low-cost optical components and a detector. In addition, the system has the potential to be constructed as a plug-and-play fiber-coupled monolithic device to provide submegahertz stability for lasers in the commercial market.

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U2 - 10.1364/OL.27.001905

DO - 10.1364/OL.27.001905

M3 - Article

SN - 0146-9592

VL - 27

SP - 1905

EP - 1907

JO - Optics Letters

JF - Optics Letters

IS - 21

ER -

Interferometric, modulation-free laser stabilization

Abstract

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