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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 15 — Jul. 19, 2010
  • pp: 15981–15989

Spectrally resolved laser ranging with frequency combs

Martin Godbout, Jean-Daniel Deschênes, and Jérôme Genest  »View Author Affiliations

Optics Express, Vol. 18, Issue 15, pp. 15981-15989 (2010)

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The multiheterodyne beatnote between two frequency combs having pulses sliding one with respect to another is used to perform spectrally resolved ranging of diffuse reflectors at short distances. The sliding comb sources are generated using one mode-locked laser and a two-beam interferometer, but two properly controlled lasers could be used as well. A pseudo-random binary modulation of the pulses is used to increase the non-ambiguous range. Ranging with a spatial resolution of 21 cm and a spectral resolution of 10 cm−1 over a 200 cm−1 spectral range is demonstrated.

© 2010 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.3940) Instrumentation, measurement, and metrology : Metrology
(300.3700) Spectroscopy : Linewidth
(300.6300) Spectroscopy : Spectroscopy, Fourier transforms
(300.6310) Spectroscopy : Spectroscopy, heterodyne
(300.6320) Spectroscopy : Spectroscopy, high-resolution

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: June 3, 2010
Revised Manuscript: June 30, 2010
Manuscript Accepted: July 6, 2010
Published: July 13, 2010

Martin Godbout, Jean-Daniel Deschênes, and Jerômè Genest, "Spectrally resolved laser ranging with frequency combs," Opt. Express 18, 15981-15989 (2010)

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