THz sources and detectors based on diode lasers

Claus-Stefan Friedrich; Carsten Brenner; Stefan Hoffmann; Tobias Schlauch; Andreas Klehr; Götz Erbert; Günther Tränkle; Christian Jördens; Mohammed Salhi; Martin Koch; Martin R. Hofmann

doi:10.1117/12.807853

23 February 2009 THz sources and detectors based on diode lasers

Claus-Stefan Friedrich, Carsten Brenner, Stefan Hoffmann, Tobias Schlauch, Andreas Klehr, Götz Erbert, Günther Tränkle, Christian Jördens, Mohammed Salhi, Martin Koch, Martin R. Hofmann

Author Affiliations +

Proceedings Volume 7197, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VIII; 71970B (2009) https://doi.org/10.1117/12.807853
Event: SPIE LASE: Lasers and Applications in Science and Engineering, 2009, San Jose, California, United States

Abstract

We demonstrate concepts for compact and cost effective THz technology based on semiconductor diode lasers. In detail, we analyze diode laser based THz sources and detectors. Continuous wave THz radiation is generated by two color diode lasers either with external photomixers or direct difference frequency generation in the diode laser. For time domain THz sampling applications we present a suitable mode-locked diode laser system. Further we present a method to detect THz radiation with diode lasers at room temperature: A THz signal coupled into the active region of a diode laser results in a variation of the voltage across the p-n-junction.

Citation Download Citation

Claus-Stefan Friedrich, Carsten Brenner, Stefan Hoffmann, Tobias Schlauch, Andreas Klehr, Götz Erbert, Günther Tränkle, Christian Jördens, Mohammed Salhi, Martin Koch, and Martin R. Hofmann "THz sources and detectors based on diode lasers", Proc. SPIE 7197, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VIII, 71970B (23 February 2009); https://doi.org/10.1117/12.807853

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