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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 6 — Mar. 24, 2014
  • pp: 7178–7185

Compact and stable THz vector spectroscopy using silicon photonics technology

Jae-Young Kim, Hidetaka Nishi, Ho-Jin Song, Hiroshi Fukuda, Makoto Yaita, Akihiko Hirata, and Katsuhiro Ajito  »View Author Affiliations


Optics Express, Vol. 22, Issue 6, pp. 7178-7185 (2014)
http://dx.doi.org/10.1364/OE.22.007178


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Abstract

We present a compact and stable terahertz (THz) vector spectroscopy system using silicon photonics technology. A silicon-based integrated phase control circuit greatly reduces the physical size of the continuous-wave THz spectroscopy system and enhances environmental phase stability. Differential lightwave phase control using two carrier-injection electro-optic modulators enables fast and linear phase sweeps of THz-waves. Using the silicon-photonic circuit, we demonstrate a THz vector spectrometer; the dynamic ranges are 65 and 35 dB at 300 GHz and 1 THz with 1-ms integration time and phase variation is less than ± 10° without thermal packaging.

© 2014 Optical Society of America

OCIS Codes
(300.6495) Spectroscopy : Spectroscopy, teraherz
(130.4110) Integrated optics : Modulators

ToC Category:
Terahertz Optics

History
Original Manuscript: January 27, 2014
Revised Manuscript: March 12, 2014
Manuscript Accepted: March 13, 2014
Published: March 19, 2014

Citation
Jae-Young Kim, Hidetaka Nishi, Ho-Jin Song, Hiroshi Fukuda, Makoto Yaita, Akihiko Hirata, and Katsuhiro Ajito, "Compact and stable THz vector spectroscopy using silicon photonics technology," Opt. Express 22, 7178-7185 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-6-7178


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