Abstract

The successful demonstration of an optical fiber-coupled terahertz time–domain spectroscopy (THz-TDS) system is described in this study. The terahertz output power of the emitter with two optical band rejection filters was 132nW, which is an improvement of 70% over the output power without any filters. This improvement is due to the suppression of an optical modulated signal that is reverse-generated when an alternating current bias exceeding a certain threshold is applied to the emitter. Under the optimal alignment conditions, the terahertz detector in a fiber-coupled THz-TDS system clearly measured water vapor dips in the free space.

© 2011 Optical Society of America

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2010

2009

2008

C. Jördens, N. Krumbholz, T. Hasek, N. Vieweg, B. Scherger, L. Bähr, M. Mikulics, and M. Koch, Electron. Lett. 44, 1473 (2008).
[CrossRef]

G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, Appl. Phys. Lett. 93, 091110 (2008).
[CrossRef]

B. Sartorius, H. Roehle, H. Künzel, J. Böttcher, M. Schlak, D. Stanze, H. Venghaus, and M. Schell, Opt. Express 16, 9565 (2008).
[CrossRef] [PubMed]

2007

Y. Lee, S. Tanaka, N. Uetake, S. Fujisaki, R. Inoue, and M. Tonouchi, Appl. Phys. B 87, 405 (2007).
[CrossRef]

2006

R. Inoue, Y. Ohno, and M. Tonouchi, Jpn. J. Appl. Phys. 45, 7928 (2006).
[CrossRef]

2005

I. S. Gregory, C. Baker, W. R. Tribe, I. V. Bradley, M. J. Evans, E. H. Linfield, A. G. Davies, and M. Missous, IEEE J. Quantum Electron. 41, 717 (2005).
[CrossRef]

C. Baker, I. S. Gregory, M. J. Evans, W. R. Tribe, E. H. Linfield, and M. Missous, Opt. Express 13, 9639 (2005).
[CrossRef] [PubMed]

2002

Bähr, L.

C. Jördens, N. Krumbholz, T. Hasek, N. Vieweg, B. Scherger, L. Bähr, M. Mikulics, and M. Koch, Electron. Lett. 44, 1473 (2008).
[CrossRef]

Baker, C.

C. Baker, I. S. Gregory, M. J. Evans, W. R. Tribe, E. H. Linfield, and M. Missous, Opt. Express 13, 9639 (2005).
[CrossRef] [PubMed]

I. S. Gregory, C. Baker, W. R. Tribe, I. V. Bradley, M. J. Evans, E. H. Linfield, A. G. Davies, and M. Missous, IEEE J. Quantum Electron. 41, 717 (2005).
[CrossRef]

Böttcher, J.

Bradley, I. V.

I. S. Gregory, C. Baker, W. R. Tribe, I. V. Bradley, M. J. Evans, E. H. Linfield, A. G. Davies, and M. Missous, IEEE J. Quantum Electron. 41, 717 (2005).
[CrossRef]

Chun, H. S.

Davies, A. G.

I. S. Gregory, C. Baker, W. R. Tribe, I. V. Bradley, M. J. Evans, E. H. Linfield, A. G. Davies, and M. Missous, IEEE J. Quantum Electron. 41, 717 (2005).
[CrossRef]

Dietz, R. J. B.

Evans, M. J.

I. S. Gregory, C. Baker, W. R. Tribe, I. V. Bradley, M. J. Evans, E. H. Linfield, A. G. Davies, and M. Missous, IEEE J. Quantum Electron. 41, 717 (2005).
[CrossRef]

C. Baker, I. S. Gregory, M. J. Evans, W. R. Tribe, E. H. Linfield, and M. Missous, Opt. Express 13, 9639 (2005).
[CrossRef] [PubMed]

Fujisaki, S.

Y. Lee, S. Tanaka, N. Uetake, S. Fujisaki, R. Inoue, and M. Tonouchi, Appl. Phys. B 87, 405 (2007).
[CrossRef]

Gregory, I. S.

C. Baker, I. S. Gregory, M. J. Evans, W. R. Tribe, E. H. Linfield, and M. Missous, Opt. Express 13, 9639 (2005).
[CrossRef] [PubMed]

I. S. Gregory, C. Baker, W. R. Tribe, I. V. Bradley, M. J. Evans, E. H. Linfield, A. G. Davies, and M. Missous, IEEE J. Quantum Electron. 41, 717 (2005).
[CrossRef]

Han, S.-P.

M. Y. Jeon, N. Kim, J. Shin, J. S. Jeong, S.-P. Han, C. W. Lee, Y. A. Leem, D.-S. Yee, H. S. Chun, and K. H. Park, Opt. Express 18, 12291 (2010).
[CrossRef] [PubMed]

N. Kim, Y. A. Leem, M. Y. Jeon, C. W. Lee, S.-P. Han, D. Lee, and K. H. Park, “Widely tunable 1.55-μm detuned dual mode laser diode for compact continuous-wave THz emitter,” ETRI J. (to be published).

Hasek, T.

C. Jördens, N. Krumbholz, T. Hasek, N. Vieweg, B. Scherger, L. Bähr, M. Mikulics, and M. Koch, Electron. Lett. 44, 1473 (2008).
[CrossRef]

Hensel, H. J.

Hohmuth, R.

G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, Appl. Phys. Lett. 93, 091110 (2008).
[CrossRef]

Inoue, R.

Y. Lee, S. Tanaka, N. Uetake, S. Fujisaki, R. Inoue, and M. Tonouchi, Appl. Phys. B 87, 405 (2007).
[CrossRef]

R. Inoue, Y. Ohno, and M. Tonouchi, Jpn. J. Appl. Phys. 45, 7928 (2006).
[CrossRef]

Jang, Y.

Jeon, M. Y.

M. Y. Jeon, N. Kim, J. Shin, J. S. Jeong, S.-P. Han, C. W. Lee, Y. A. Leem, D.-S. Yee, H. S. Chun, and K. H. Park, Opt. Express 18, 12291 (2010).
[CrossRef] [PubMed]

N. Kim, J. Shin, E. Sim, C. W. Lee, D.-S. Yee, M. Y. Jeon, Y. Jang, and K. H. Park, Opt. Express 17, 13851 (2009).
[CrossRef] [PubMed]

N. Kim, Y. A. Leem, M. Y. Jeon, C. W. Lee, S.-P. Han, D. Lee, and K. H. Park, “Widely tunable 1.55-μm detuned dual mode laser diode for compact continuous-wave THz emitter,” ETRI J. (to be published).

Jeong, J. S.

Jördens, C.

C. Jördens, N. Krumbholz, T. Hasek, N. Vieweg, B. Scherger, L. Bähr, M. Mikulics, and M. Koch, Electron. Lett. 44, 1473 (2008).
[CrossRef]

Kim, N.

M. Y. Jeon, N. Kim, J. Shin, J. S. Jeong, S.-P. Han, C. W. Lee, Y. A. Leem, D.-S. Yee, H. S. Chun, and K. H. Park, Opt. Express 18, 12291 (2010).
[CrossRef] [PubMed]

N. Kim, J. Shin, E. Sim, C. W. Lee, D.-S. Yee, M. Y. Jeon, Y. Jang, and K. H. Park, Opt. Express 17, 13851 (2009).
[CrossRef] [PubMed]

N. Kim, Y. A. Leem, M. Y. Jeon, C. W. Lee, S.-P. Han, D. Lee, and K. H. Park, “Widely tunable 1.55-μm detuned dual mode laser diode for compact continuous-wave THz emitter,” ETRI J. (to be published).

Koch, M.

C. Jördens, N. Krumbholz, T. Hasek, N. Vieweg, B. Scherger, L. Bähr, M. Mikulics, and M. Koch, Electron. Lett. 44, 1473 (2008).
[CrossRef]

Krumbholz, N.

C. Jördens, N. Krumbholz, T. Hasek, N. Vieweg, B. Scherger, L. Bähr, M. Mikulics, and M. Koch, Electron. Lett. 44, 1473 (2008).
[CrossRef]

Künzel, H.

Lee, C. W.

M. Y. Jeon, N. Kim, J. Shin, J. S. Jeong, S.-P. Han, C. W. Lee, Y. A. Leem, D.-S. Yee, H. S. Chun, and K. H. Park, Opt. Express 18, 12291 (2010).
[CrossRef] [PubMed]

N. Kim, J. Shin, E. Sim, C. W. Lee, D.-S. Yee, M. Y. Jeon, Y. Jang, and K. H. Park, Opt. Express 17, 13851 (2009).
[CrossRef] [PubMed]

N. Kim, Y. A. Leem, M. Y. Jeon, C. W. Lee, S.-P. Han, D. Lee, and K. H. Park, “Widely tunable 1.55-μm detuned dual mode laser diode for compact continuous-wave THz emitter,” ETRI J. (to be published).

Lee, D.

N. Kim, Y. A. Leem, M. Y. Jeon, C. W. Lee, S.-P. Han, D. Lee, and K. H. Park, “Widely tunable 1.55-μm detuned dual mode laser diode for compact continuous-wave THz emitter,” ETRI J. (to be published).

Lee, Y.

Y. Lee, S. Tanaka, N. Uetake, S. Fujisaki, R. Inoue, and M. Tonouchi, Appl. Phys. B 87, 405 (2007).
[CrossRef]

Leem, Y. A.

M. Y. Jeon, N. Kim, J. Shin, J. S. Jeong, S.-P. Han, C. W. Lee, Y. A. Leem, D.-S. Yee, H. S. Chun, and K. H. Park, Opt. Express 18, 12291 (2010).
[CrossRef] [PubMed]

N. Kim, Y. A. Leem, M. Y. Jeon, C. W. Lee, S.-P. Han, D. Lee, and K. H. Park, “Widely tunable 1.55-μm detuned dual mode laser diode for compact continuous-wave THz emitter,” ETRI J. (to be published).

Linfield, E. H.

I. S. Gregory, C. Baker, W. R. Tribe, I. V. Bradley, M. J. Evans, E. H. Linfield, A. G. Davies, and M. Missous, IEEE J. Quantum Electron. 41, 717 (2005).
[CrossRef]

C. Baker, I. S. Gregory, M. J. Evans, W. R. Tribe, E. H. Linfield, and M. Missous, Opt. Express 13, 9639 (2005).
[CrossRef] [PubMed]

Matthäus, G.

G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, Appl. Phys. Lett. 93, 091110 (2008).
[CrossRef]

Mikulics, M.

C. Jördens, N. Krumbholz, T. Hasek, N. Vieweg, B. Scherger, L. Bähr, M. Mikulics, and M. Koch, Electron. Lett. 44, 1473 (2008).
[CrossRef]

Missous, M.

C. Baker, I. S. Gregory, M. J. Evans, W. R. Tribe, E. H. Linfield, and M. Missous, Opt. Express 13, 9639 (2005).
[CrossRef] [PubMed]

I. S. Gregory, C. Baker, W. R. Tribe, I. V. Bradley, M. J. Evans, E. H. Linfield, A. G. Davies, and M. Missous, IEEE J. Quantum Electron. 41, 717 (2005).
[CrossRef]

Mittleman, D. M.

Nolte, S.

G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, Appl. Phys. Lett. 93, 091110 (2008).
[CrossRef]

Notni, G.

G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, Appl. Phys. Lett. 93, 091110 (2008).
[CrossRef]

Ohno, Y.

R. Inoue, Y. Ohno, and M. Tonouchi, Jpn. J. Appl. Phys. 45, 7928 (2006).
[CrossRef]

Park, K. H.

M. Y. Jeon, N. Kim, J. Shin, J. S. Jeong, S.-P. Han, C. W. Lee, Y. A. Leem, D.-S. Yee, H. S. Chun, and K. H. Park, Opt. Express 18, 12291 (2010).
[CrossRef] [PubMed]

N. Kim, J. Shin, E. Sim, C. W. Lee, D.-S. Yee, M. Y. Jeon, Y. Jang, and K. H. Park, Opt. Express 17, 13851 (2009).
[CrossRef] [PubMed]

N. Kim, Y. A. Leem, M. Y. Jeon, C. W. Lee, S.-P. Han, D. Lee, and K. H. Park, “Widely tunable 1.55-μm detuned dual mode laser diode for compact continuous-wave THz emitter,” ETRI J. (to be published).

Pradarutti, B.

G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, Appl. Phys. Lett. 93, 091110 (2008).
[CrossRef]

Richter, W.

G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, Appl. Phys. Lett. 93, 091110 (2008).
[CrossRef]

Riehemann, S.

G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, Appl. Phys. Lett. 93, 091110 (2008).
[CrossRef]

Roehle, H.

Rudd, J. V.

Sartorius, B.

Schell, M.

Scherger, B.

C. Jördens, N. Krumbholz, T. Hasek, N. Vieweg, B. Scherger, L. Bähr, M. Mikulics, and M. Koch, Electron. Lett. 44, 1473 (2008).
[CrossRef]

Schlak, M.

Shin, J.

Sim, E.

Stanze, D.

Tanaka, S.

Y. Lee, S. Tanaka, N. Uetake, S. Fujisaki, R. Inoue, and M. Tonouchi, Appl. Phys. B 87, 405 (2007).
[CrossRef]

Tonouchi, M.

Y. Lee, S. Tanaka, N. Uetake, S. Fujisaki, R. Inoue, and M. Tonouchi, Appl. Phys. B 87, 405 (2007).
[CrossRef]

R. Inoue, Y. Ohno, and M. Tonouchi, Jpn. J. Appl. Phys. 45, 7928 (2006).
[CrossRef]

Tribe, W. R.

C. Baker, I. S. Gregory, M. J. Evans, W. R. Tribe, E. H. Linfield, and M. Missous, Opt. Express 13, 9639 (2005).
[CrossRef] [PubMed]

I. S. Gregory, C. Baker, W. R. Tribe, I. V. Bradley, M. J. Evans, E. H. Linfield, A. G. Davies, and M. Missous, IEEE J. Quantum Electron. 41, 717 (2005).
[CrossRef]

Tünnermann, A.

G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, Appl. Phys. Lett. 93, 091110 (2008).
[CrossRef]

Uetake, N.

Y. Lee, S. Tanaka, N. Uetake, S. Fujisaki, R. Inoue, and M. Tonouchi, Appl. Phys. B 87, 405 (2007).
[CrossRef]

Venghaus, H.

Vieweg, N.

C. Jördens, N. Krumbholz, T. Hasek, N. Vieweg, B. Scherger, L. Bähr, M. Mikulics, and M. Koch, Electron. Lett. 44, 1473 (2008).
[CrossRef]

Voitsch, M.

G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, Appl. Phys. Lett. 93, 091110 (2008).
[CrossRef]

Yee, D.-S.

Appl. Phys. B

Y. Lee, S. Tanaka, N. Uetake, S. Fujisaki, R. Inoue, and M. Tonouchi, Appl. Phys. B 87, 405 (2007).
[CrossRef]

Appl. Phys. Lett.

G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, Appl. Phys. Lett. 93, 091110 (2008).
[CrossRef]

Electron. Lett.

C. Jördens, N. Krumbholz, T. Hasek, N. Vieweg, B. Scherger, L. Bähr, M. Mikulics, and M. Koch, Electron. Lett. 44, 1473 (2008).
[CrossRef]

ETRI J.

N. Kim, Y. A. Leem, M. Y. Jeon, C. W. Lee, S.-P. Han, D. Lee, and K. H. Park, “Widely tunable 1.55-μm detuned dual mode laser diode for compact continuous-wave THz emitter,” ETRI J. (to be published).

IEEE J. Quantum Electron.

I. S. Gregory, C. Baker, W. R. Tribe, I. V. Bradley, M. J. Evans, E. H. Linfield, A. G. Davies, and M. Missous, IEEE J. Quantum Electron. 41, 717 (2005).
[CrossRef]

J. Opt. Soc. Am. B

Jpn. J. Appl. Phys.

R. Inoue, Y. Ohno, and M. Tonouchi, Jpn. J. Appl. Phys. 45, 7928 (2006).
[CrossRef]

Opt. Express

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Figures (5)

Fig. 1
Fig. 1

(a) Optical fiber-coupled THz-TDS system and (b) schematic of the emitter (or detector) module used for the fiber-coupled THz-TDS system, with inset showing the ray tracing results of an optical signal after passing through the emitter.

Fig. 2
Fig. 2

Log–spiral antenna-integrated LTG InGaAs PCA chip. Inset shows the interdigitated finger patterns, having a finger width of 800 nm and a finger gap of 2400 nm , placed in the center of the LTG InGaAs PCA.

Fig. 3
Fig. 3

Optical modulation caused by bias modulation as detected from (a) the Golay cell and (b) the photodiode detectors.

Fig. 4
Fig. 4

(a) Output power measured with a Golay cell as a function of the bias voltage at an optical power of 9 mW . (b) LIA detects the final signal (solid line) composed of the terahertz output signal (dashed line) and the optical modulated signal (central dotted line).

Fig. 5
Fig. 5

FFT amplitude spectrum measured by the fiber-coupled THz-TDS, and water vapor dips in the free space.

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