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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 23 — Dec. 1, 2009
  • pp: 3692–3694

Ultrabroadband optical chirp linearization for precision metrology applications

Peter A. Roos, Randy R. Reibel, Trenton Berg, Brant Kaylor, Zeb W. Barber, and Wm. Randall Babbitt  »View Author Affiliations

Optics Letters, Vol. 34, Issue 23, pp. 3692-3694 (2009)

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We demonstrate precise linearization of ultrabroadband laser frequency chirps via a fiber-based self-heterodyne technique to enable extremely high-resolution, frequency-modulated cw laser-radar (LADAR) and a wide range of other metrology applications. Our frequency chirps cover bandwidths up to nearly 5 THz with frequency errors as low as 170 kHz , relative to linearity. We show that this performance enables 31 - μ m transform-limited LADAR range resolution (FWHM) and 86 nm range precisions over a 1.5 m range baseline. Much longer range baselines are possible but are limited by atmospheric turbulence and fiber dispersion.

© 2009 Optical Society of America

OCIS Codes
(120.3930) Instrumentation, measurement, and metrology : Metrological instrumentation
(120.3940) Instrumentation, measurement, and metrology : Metrology
(150.5670) Machine vision : Range finding
(280.3640) Remote sensing and sensors : Lidar
(150.3045) Machine vision : Industrial optical metrology
(140.3425) Lasers and laser optics : Laser stabilization

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: September 9, 2009
Manuscript Accepted: October 19, 2009
Published: November 24, 2009

Peter A. Roos, Randy R. Reibel, Trenton Berg, Brant Kaylor, Zeb W. Barber, and Wm. Randall Babbitt, "Ultrabroadband optical chirp linearization for precision metrology applications," Opt. Lett. 34, 3692-3694 (2009)

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