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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 28, Iss. 21 — Nov. 1, 1989
  • pp: 4525–4532

Infrared tunable diode laser control: frequency stabilization and digitization of spectra leading to high sensitivity and accurate frequency scale

Christophe Nicolas and Arlan W. Mantz  »View Author Affiliations


Applied Optics, Vol. 28, Issue 21, pp. 4525-4532 (1989)
http://dx.doi.org/10.1364/AO.28.004525


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Abstract

An infrared diode laser is frequency stabilized to a tunable internally coupled Fabry-Perot interferometer (icFPI). Diode laser spectra are digitally recorded utilizing a step-by-step tuning and stabilization sequence of the icFPI. Fringes from a frequency stabilized reference He–Ne laser are used to control digital sampling steps. While improving significantly the spectral SNR, this method is combined with a confocal Fabry-Perot etalon, thus providing a frequency scale accuracy of ∼3.5 × 10−5 cm−1 over a 1-cm−1 scan. The method is shown to be consistent with high resolution Fourier transform and heterodyne spectroscopy results.

© 1989 Optical Society of America

History
Original Manuscript: February 8, 1989
Published: November 1, 1989

Citation
Christophe Nicolas and Arlan W. Mantz, "Infrared tunable diode laser control: frequency stabilization and digitization of spectra leading to high sensitivity and accurate frequency scale," Appl. Opt. 28, 4525-4532 (1989)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-28-21-4525

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