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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 34, Iss. 10 — May. 15, 2009
  • pp: 1582–1584

Scanning white-light interferometry with a supercontinuum source

Ivan Kassamakov, Kalle Hanhijärvi, Imad Abbadi, Juha Aaltonen, Hanne Ludvigsen, and Edward Hæggström  »View Author Affiliations


Optics Letters, Vol. 34, Issue 10, pp. 1582-1584 (2009)
http://dx.doi.org/10.1364/OL.34.001582


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Abstract

A supercontinuum light source was incorporated into a custom-built scanning white-light interferometer. This light source based on a Nd:YAG pumped microstructured optical fiber exhibits 1.21 ± 0.10 μ m temporal coherence length. The device operation was validated by characterizing the step height on a microelectromechanical system component. The measured step height— 7.027 ± 0.020 μ m —agreed with results obtained by employing traditional light sources: a halogen lamp and a white light-emitting diode. The new light source features high output intensity of 20 35 mW , which is beneficial when measuring low-reflectivity samples. As the supercontinuum light source may be modulated at frequencies exceeding 10 MHz , it holds potential for stroboscopic dynamic measurements.

© 2009 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(320.6629) Ultrafast optics : Supercontinuum generation

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: January 27, 2009
Revised Manuscript: April 6, 2009
Manuscript Accepted: April 16, 2009
Published: May 14, 2009

Citation
Ivan Kassamakov, Kalle Hanhijärvi, Imad Abbadi, Juha Aaltonen, Hanne Ludvigsen, and Edward Hæggström, "Scanning white-light interferometry with a supercontinuum source," Opt. Lett. 34, 1582-1584 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-10-1582


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