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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 19 — Sep. 15, 2008
  • pp: 14771–14779

Bandwidth enhancement of electro-optic field sensing using photonic down-mixing with harmonic sidebands

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

Optics Express, Vol. 16, Issue 19, pp. 14771-14779 (2008)

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We demonstrate that harmonic sidebands of an electro-optic modulator’s driving frequency can be used as the local oscillator in a photonic down-mixing process in order to significantly enhance the bandwidth of near-field, electro-optic, microwave measurements. The creation of second- and third-order-harmonic modulation sidebands on a laser-diode output are described, with heterodyne down-conversion of microwave signals taking place within an electro-optic sensor crystal. The measurement bandwidth of an electro-optic microwave probe can thus be enhanced by as much as a factor of three with respect to the use of conventional, fundamental-harmonic sidebands. Carrier-sideband analysis from the measured optical spectrum indicates that millimeter-wave-frequency local-oscillator sidebands can be created using a Ku-band electro-optic modulator and that the electro-optic-signal-modulation depth can be enhanced by suppressing the light-beam carrier component. Transverse near-field distributions from high frequency patch antennas are extracted using both second- and third-order-harmonic sidebands.

© 2008 Optical Society of America

OCIS Codes
(230.2090) Optical devices : Electro-optical devices
(230.4110) Optical devices : Modulators
(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: June 27, 2008
Revised Manuscript: August 10, 2008
Manuscript Accepted: August 21, 2008
Published: September 4, 2008

Dong-Joon Lee and John F. Whitaker, "Bandwidth enhancement of electro-optic field sensing using photonic down-mixing with harmonic sidebands," Opt. Express 16, 14771-14779 (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]
  2. K. Yang, J. G. Yook, L. P. B. Katehi, and J. F. Whitaker, "Electrooptic Mapping and Finite-Element Modeling of the Near -Field Pattern of a Microstrip Patch Antenna," IEEE Trans. Microwave Theory Tech. 48, 228-294 (2000).
  3. K. Yang, T. Marshall, M. Forman, J. Hubert, L. Mirth, Z. Popovic, L. P. B. Katehi, and J. F. Whitaker, "Active-amplifier-array diagnostics using high-resolution electrooptic field mapping," IEEE Trans. Microwave Theory Tech. 49, 849-857 (2001). [CrossRef]
  4. K. Sasagawa, M. Tsuchiya, and M. Izutsu, "Electrooptic probing based on photonic down-conversion," Eighth Int. Symp. Contemporary Photon. Tech. Dig. 29-30, (2005).
  5. K. Sasagawa, A Kanno, T. Kawanishi, and M. Tsuchiya, "Live Electrooptic Imaging System Based on Ultraparallel Photonic Heterodyne for Microwave Near-Fields," IEEE Trans. Microwave Theory Tech. 55, 2782-2791 (2007). [CrossRef]
  6. D. J. Lee, M. H. Crites, and J. F. Whitaker, "Electro-Optic Probing of Microwave Fields Using a Wavelength-Tunable Modulation Depth," Meas. Sci. Technol. (to be published).
  7. K. Yang, L. P. B. Katehi, and J. F. Whitaker, "Electro-optic field mapping system utilizing external gallium arsenide probes," Appl. Phys. Lett. 77, 486-488 (2000). [CrossRef]
  8. B. H. Kolner and D. W. Dolfi, "Intermodulation distortion and compression in an integrated electrooptic modulator," Appl. Opt. 26, 3676-3680 (1987). [CrossRef] [PubMed]
  9. B. Masella and X. Zhang, "Linearized optical single sideband Mach-Zehnder electro-optic modulator for radio over fiber systems," Opt. Express 169181-9190 (2008), http://www.opticsinfobase.org/abstract.cfm?URI=oe-16-12-9181. [CrossRef] [PubMed]
  10. D. J. Lee, J. J. Kang, C. C. Chen, and J. F. Whitaker, "Vector Near-Field Measurement System Using an Electro-Optic Microcavity and Electrical Down-conversion," IEEE 2008 MTT-S International Microwave Symposium Digest, 1589-1592, (2008).
  11. J. J. Kang, D. J. Lee, C. C. Chen, J. F. Whitaker, and E. J. Rothwell, "Compact Mobile RFID Antenna Design and Analysis Using Photonic-assisted Vector Near-field Characterization," IEEE 2008 International Conference on RFID Digest, 81-88, (2008).
  12. D. J. Lee and J. F. Whitaker, "A Simplified Fabry-Pérot Electrooptic-Modulation Sensor," IEEE Photon. Technol. Lett. 20, 866-868, (2008). [CrossRef]

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