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Proceedings Paper

Handheld terahertz systems based on telecom technologies
Author(s): Helmut Roehle; Bernd Sartorius; Dennis Stanze; Roman Dietz; Martin Schell
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Paper Abstract

The potential of Terahertz technology for various applications in security or material inspection has now been demonstrated widely. However, THz systems have to shrink in size and price to become acceptable for real-world applications. Our way to approach this target is to exploit technologies developed and matured originally for 1.55 μm fiber-optic telecom applications. Key devices are photoconductive antennas for 1.55 μm operation. They were developed using a novel InGaAs/InAlAs multi-layer structure. The antennas are packaged into fiber coupled modules. These handheld THz heads are driven by a 1.55 μm pulsed fiber laser. A tunable delay with both an oscillating mirror and a precise linear drive allow for real-time measurements as well as for high resolution spectroscopy. The system performance up to 4 THz is demonstrated.

Paper Details

Date Published: 5 March 2010
PDF: 8 pages
Proc. SPIE 7601, Terahertz Technology and Applications III, 76010E (5 March 2010); doi: 10.1117/12.840827
Show Author Affiliations
Helmut Roehle, Fraunhofer-Institut für Nachrichtentechnik Heinrich-Hertz-Institut (Germany)
Bernd Sartorius, Fraunhofer-Institut für Nachrichtentechnik Heinrich-Hertz-Institut (Germany)
Dennis Stanze, Fraunhofer-Institut für Nachrichtentechnik Heinrich-Hertz-Institut (Germany)
Roman Dietz, Fraunhofer-Institut für Nachrichtentechnik Heinrich-Hertz-Institut (Germany)
Martin Schell, Fraunhofer-Institut für Nachrichtentechnik Heinrich-Hertz-Institut (Germany)


Published in SPIE Proceedings Vol. 7601:
Terahertz Technology and Applications III
Laurence P. Sadwick; Creidhe M. M. O'Sullivan, Editor(s)

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