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Optics Letters

Optics Letters


  • Vol. 36, Iss. 15 — Aug. 1, 2011
  • pp: 2928–2930

Absolute metrology by phase and frequency modulation for multiwavelength interferometry

Konstantinos Falaggis and Catherine E. Towers  »View Author Affiliations

Optics Letters, Vol. 36, Issue 15, pp. 2928-2930 (2011)

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A fiber interferometer for absolute distance measurements is presented whereby wavelength variation is achieved via a sinusoidal strain modulation of a fiber Bragg grating to generate a series of beat wavelengths. The interferometer employs fiber laser sources where the design is based on the use of narrow-bandwidth fiber Bragg gratings. The accuracy of the beat wavelengths is improved compared to the use of multiple wavelengths measured with conventional optical spectrum analyzers or available wavemeters. Initial measurements are presented for beat wavelengths of 254.74 mm and 27.4 m over an optical path difference of 200 mm and 3.8 m , respectively. Combined with a two (or three) wavelength interferometer, this technique has the potential for ultrahigh dynamic range metrology ranging over several meters while preserving subfringe resolution and a low system complexity.

© 2011 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.3180) Instrumentation, measurement, and metrology : Interferometry

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: May 16, 2011
Revised Manuscript: June 28, 2011
Manuscript Accepted: July 1, 2011
Published: August 1, 2011

Konstantinos Falaggis and Catherine E. Towers, "Absolute metrology by phase and frequency modulation for multiwavelength interferometry," Opt. Lett. 36, 2928-2930 (2011)

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  1. S. Leveque, Y. Salvade, R. Dandliker, and O. Scherler, Laser Focus World 38 (4), 101 (2002).
  2. A. McCarthy, R. J. Collins, N. J. Krichel, V. Fernández, A. M. Wallace, and G. S. Buller, Appl. Opt. 48, 6241 (2009). [CrossRef] [PubMed]
  3. J. Thiel, T. Pfeifer, and M. Hartmann, Measurement 16, 1 (1995). [CrossRef]
  4. R. Dändliker, R. Thalmann, and D. Prongué, Opt. Lett. 13, 339 (1988). [CrossRef] [PubMed]
  5. K. Falaggis, D. P. Towers, and C. E. Towers, J. Opt. A 11, 054008 (2009). [CrossRef]
  6. S. Hyun, Y.-J. Kim, Y. Kim, J. Jin, and S.-W. Kim, Meas. Sci. Technol. 20, 095302 (2009). [CrossRef]
  7. P. J. de Groot, Appl. Opt. 48, 6788 (2009). [CrossRef] [PubMed]
  8. J. Burke, T. Bothe, W. Osten, and C. F. Hess, Proc. SPIE 4778, 312 (2002). [CrossRef]
  9. C. E. Towers, D. P. Towers, and J. D. C. Jones, Opt. Lett. 29, 1348 (2004). [CrossRef] [PubMed]
  10. Y. M. Jhon, M.-W. Kim, B. K. Kim, J. C. Lee, S. K. Kim, and S. S. Choi, in Proceedings of Conference on Lasers and Electro-Optics/Pacific Rim '99 (Optical Society of America, 1999), Vol. 1, p. 23.
  11. B. Ibarra-Escamilla, E. A. Kuzin, O. Pottiez, J. W. Haus, F. Gutierrez-Zainos, R. Grajales-Coutino, and P. Zaca-Moran, Opt. Commun. 242, 191 (2004). [CrossRef]

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