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Conferences > CLEO_SI > 2012 > CTu1B > CTu1B.3

Narrow linewidth tunable THz signal radiated by photomixing: coupling a unitravelling carrier photodiode and a two-axis dual-frequency laser

Antoine Rolland, Guillaume Ducournau, Goulc’hen Loas, Emilien Peytavit, Alexandre Beck, Tahsin Akalin, Mohamed Zaknoune, Jean-françois Lampin, Marc Brunel, François Bondu, Marc Vallet, and Mehdi Alouini

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Abstract

A narrow linewidth THz source is reported. A beatnote provided by a dual-frequency laser is sent into a unitravelling carrier photodiode, and radiated by a transverse-electromagnetic-horn antenna. The emitted THz signal is detected by a subharmonic mixer coupled to an electrical spectrum analyzer. The measured linewidth is better than 30 kHz and tunable from DC to 770 GHz with a minimum 30 dB dynamic range.

© 2012 Optical Society of America

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