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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 10 — May. 15, 2010
  • pp: 1689–1691

Fiber-based, hybrid terahertz spectrometer using dual fiber combs

Takeshi Yasui, Masaki Nose, Atsushi Ihara, Kohji Kawamoto, Shuko Yokoyama, Hajime Inaba, Kaoru Minoshima, and Tsutomu Araki  »View Author Affiliations


Optics Letters, Vol. 35, Issue 10, pp. 1689-1691 (2010)
http://dx.doi.org/10.1364/OL.35.001689


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Abstract

We constructed a fiber-based, hybrid terahertz (THz) spectrometer having two working modes, asynchronous- optical-sampling THz time-domain spectroscopy (AOS-THz-TDS) and multiple-frequency-heterodyning THz comb spectroscopy (MFH-THz-CS), by use of dual fiber-laser-based frequency combs. A spectral range of 2 THz and dynamic range of 100 was achieved at the single sweep measurement of 200 ms in the AOS-THz-TDS mode, whereas the detailed structure of the THz frequency comb was clearly observed in the MFH-THz-CS mode. The spectrometer features compactness, robustness, flexibility, and cost effectiveness, in addition to high spectral resolution in rapid data acquisition, and has the potential to become a powerful tool for practical applications.

© 2010 Optical Society of America

OCIS Codes
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(300.6320) Spectroscopy : Spectroscopy, high-resolution
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Spectroscopy

History
Original Manuscript: December 24, 2009
Revised Manuscript: March 31, 2010
Manuscript Accepted: April 15, 2010
Published: May 14, 2010

Citation
Takeshi Yasui, Masaki Nose, Atsushi Ihara, Kohji Kawamoto, Shuko Yokoyama, Hajime Inaba, Kaoru Minoshima, and Tsutomu Araki, "Fiber-based, hybrid terahertz spectrometer using dual fiber combs," Opt. Lett. 35, 1689-1691 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-10-1689


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