OSA's Digital Library

Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 25 — Dec. 12, 2005
  • pp: 10416–10423

Wireless audio and burst communication link with directly modulated THz photoconductive antenna

Tze-An Liu, Gong-Ru Lin, Yung-Cheng Chang, and Ci-Ling Pan  »View Author Affiliations


Optics Express, Vol. 13, Issue 25, pp. 10416-10423 (2005)
http://dx.doi.org/10.1364/OPEX.13.010416


View Full Text Article

Enhanced HTML    Acrobat PDF (331 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We demonstrate transmission of audio and burst signals through a prototype THz analog communication link employing laser-gated low-temperature-grown GaAs dipole antenna as THz emitter and receiver. The transmission distance is about 100 cm. By using a direct voltage modulation format, we successfully demodulated a burst signal with a rising time of 41 μs. The corresponding modulating bandwidth achieved was 23 kHz in this first experiment. Noise analysis reveals a 10% power fluctuation in the received signal with on-off extinction ratio of greater than 1000. The transmission of a six-channel analog and burst audio signal with least distortion is also demonstrated. We further demonstrate the fidelity of the transmission of a melody through the THz link with and without any amplification.

© 2005 Optical Society of America

OCIS Codes
(060.4080) Fiber optics and optical communications : Modulation
(060.4510) Fiber optics and optical communications : Optical communications
(260.3090) Physical optics : Infrared, far
(320.7080) Ultrafast optics : Ultrafast devices
(320.7160) Ultrafast optics : Ultrafast technology

ToC Category:
Research Papers

Citation
Tze-An Liu, Gong-Ru Lin, Yung-Cheng Chang, and Ci-Ling Pan, "Wireless audio and burst communication link with directly modulated THz photoconductive antenna," Opt. Express 13, 10416-10423 (2005)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-13-25-10416


Sort:  Journal  |  Reset  

References

  1. M. Z. Win and R. A. Scholtz, "Impulse Radio: How it works," IEEE Commun. Lett. 2, 36-38 (1998). [CrossRef]
  2. S. Ramsey, E. Funk, and C. H. Lee, "A Wireless Photoconductive Receiver Using Impulse Modulation and Direct Sequence Code Division," in The Int. Topical Meeting on Microwave Photonics '99, Technical Digest, 265-268 (1999).
  3. E. Mueller and A. J. DeMaria, "Broad bandwidth communication/data links using terahertz sources and Schottky diode modulators/detectors," Proc. SPIE, 5727, 151-165 (2005). [CrossRef]
  4. R. Piesiewicz, J. Jemai, M. Koch and T. Kürner, "THz channel characterization for future wireless gigabit indoor communication systems," Proc. SPIE, 5727, 166-176 (2005). [CrossRef]
  5. T. Kleine-Ostmann, K. Pierz, G. Hein, P. Dawson and M. Koch, "Audio signal transmission over THz communication channel using semiconductor modulator," Electron. Lett. 40, 124-125 (2004). [CrossRef]
  6. M. Tani, S. Matsuura, K. Sakai, and S. Nakashima, "Emission characteristics of photoconductive antennas based on low-temperature-grown GaAs and semi-insulating GaAs," Appl. Opt. 36, 7853-7859 (1997). [CrossRef]
  7. M. V. Exter and D. R. Grischkowsky, "Characterization of and Optoelectronic Terahertz Beam System," IEEE Trans. Microwave Theor. Tech. 38, 1684-1691 (1990). [CrossRef]
  8. M. Tani, K. Sakai and H. Mimura, "Ultrafast Photoconductive Detectors Based on Semi-Insulating GaAs and InP," Jpn. J. Appl. Phys. 36, L1175-L1178 (1997). [CrossRef]
  9. T. -A. Liu, M. Tani, M. Nakajima, M. Hangyo, K. Sakai, S. Nakashima and C. -L. Pan, "Ultrabroadband terahertz field detection by proton-bombarded InP photoconductive antennas," Opt. Express 12, 2954 (2004), <a href="http://www.opticsexpress.org/abstract.cfm?URI=OPEX-12-13-2954">http://www.opticsexpress.org/abstract.cfm?URI=OPEX-12-13-2954</a>. [CrossRef] [PubMed]
  10. G. -R. Lin, Y. -C. Chang, T. -A. Liu, and C. -L. Pan, "Piezoelectric-Transducer-Based Optoelectronic Frequency Synchronizer for Control of Pulse Delay in a Femtosecond Passively Mode-Locked Ti:Sapphire Laser," Appl. Opt. 42, 2843-2848 (2003). [CrossRef]
  11. R. A. Cheville, M. T. Reiten, R. McGowan and D. R. Grischkowsky in D. Mittleman, Ed., Sensing with Terahertz Radiation (Springer-Verlag, New York 2002), pp. 243

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

Multimedia

Multimedia FilesRecommended Software
» Media 1: AVI (1165 KB)     
» Media 2: AVI (1141 KB)     
» Media 3: AVI (1157 KB)     
» Media 4: AVI (1178 KB)     

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited