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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 20 — Oct. 15, 2013
  • pp: 4197–4199

Telecom technology based continuous wave terahertz photomixing system with 105 decibel signal-to-noise ratio and 3.5 terahertz bandwidth

Thorsten Göbel, Dennis Stanze, Björn Globisch, Roman J. B. Dietz, Helmut Roehle, and Martin Schell  »View Author Affiliations


Optics Letters, Vol. 38, Issue 20, pp. 4197-4199 (2013)
http://dx.doi.org/10.1364/OL.38.004197


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Abstract

A modified photoconductive receiver significantly improves the performance of photomixing-based continuous wave (cw) THz systems driven at the optical telecommunication wavelength of 1.5 μm. The achieved signal-to-noise ratio of 105 dB at 100 GHz and 70 dB at 1 THz, both for an integration time of 200 ms, are to our knowledge the highest numbers reported in literature for any optoelectronic cw THz system, including classical setups operating at 800 nm. The developed receiver allows for combining low cost and high performance in one system for the first time to our knowledge.

© 2013 Optical Society of America

OCIS Codes
(040.5150) Detectors : Photoconductivity
(250.0250) Optoelectronics : Optoelectronics
(040.2235) Detectors : Far infrared or terahertz
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Detectors

History
Original Manuscript: July 3, 2013
Revised Manuscript: September 11, 2013
Manuscript Accepted: September 16, 2013
Published: October 14, 2013

Citation
Thorsten Göbel, Dennis Stanze, Björn Globisch, Roman J. B. Dietz, Helmut Roehle, and Martin Schell, "Telecom technology based continuous wave terahertz photomixing system with 105 decibel signal-to-noise ratio and 3.5 terahertz bandwidth," Opt. Lett. 38, 4197-4199 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-20-4197

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