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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 29, Iss. 23 — Dec. 1, 2004
  • pp: 2722–2724

Fiber interferometer for simultaneous multiwavelength phase measurement with a broadband femtosecond laser

Catherine E. Towers, David P. Towers, Derryck T. Reid, William N. MacPherson, Robert R. J. Maier, and Julian D. C. Jones  »View Author Affiliations


Optics Letters, Vol. 29, Issue 23, pp. 2722-2724 (2004)
http://dx.doi.org/10.1364/OL.29.002722


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Abstract

We present a fiber interferometer for the simultaneous measurement of phase at multiple wavelengths from a single broadband femtosecond laser. Narrow-bandwidth fiber Bragg gratings isolate a particular frequency from the broad-bandwidth laser pulse produced. The multiwavelength phase data permit the unambiguous measurement range to be significantly increased compared with the wavelengths used in the interferometer. Preliminary experimental results are presented for a two-frequency sensor with an absolute range of 0.13 mm and associated dynamic range of 43,000:1.

© 2004 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.2650) Instrumentation, measurement, and metrology : Fringe analysis
(120.3180) Instrumentation, measurement, and metrology : Interferometry

Citation
Catherine E. Towers, David P. Towers, Derryck T. Reid, William N. MacPherson, Robert R. J. Maier, and Julian D. C. Jones, "Fiber interferometer for simultaneous multiwavelength phase measurement with a broadband femtosecond laser," Opt. Lett. 29, 2722-2724 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-23-2722

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