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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 26 — Dec. 22, 2008
  • pp: 21587–21597

An optical-fiber-scale electro-optic probe for minimally invasive high-frequency field sensing

Dong-Joon Lee and John F. Whitaker  »View Author Affiliations

Optics Express, Vol. 16, Issue 26, pp. 21587-21597 (2008)

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A sub-millimeter-dimension electro-optic probe that provides enhanced scanning accessibility with significantly less intrusiveness than metal-based or even other dielectric probes during electromagnetic characterization of microwave devices is presented. The quantitative and qualitative relative invasiveness of the probe on the operation of an example antenna device-under-test is explored with respect to previously demonstrated fiber and wafer electro-optic sensors. We also demonstrate that the miniaturized probe, with a diameter of 125 µm, can be used to reconstruct the three orthogonal vector components of near-electric fields without the need for different probe crystals or multiple calibration procedures. Finally, the advantages of the reduced size and invasiveness of the new micro-scale probe are demonstrated through the enhanced resolution of detailed images extracted from planar antennas, as well as the capability of reaching into circuit locations heretofore inaccessible.

© 2008 Optical Society of America

OCIS Codes
(230.2090) Optical devices : Electro-optical devices
(350.4010) Other areas of optics : Microwaves
(280.4788) Remote sensing and sensors : Optical sensing and sensors

ToC Category:
Remote sensing and sensors

Original Manuscript: October 20, 2008
Revised Manuscript: December 4, 2008
Manuscript Accepted: December 5, 2008
Published: December 15, 2008

Dong-Joon Lee and John F. Whitaker, "An optical-fiber-scale electro-optic probe for minimally invasive high-frequency field sensing," Opt. Express 16, 21587-21597 (2008)

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  1. K. Yang, G. David, S. Robertson, J. F. Whitaker, and L. P. B. Katehi, "Electro-optic Mapping of Near-field Distributions in Integrated Microwave Circuits," IEEE Trans. Microwave Theory Tech. 46, 2338-2343 (1998). [CrossRef]
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