Title :
Narrow linewidth tunable THz signal generation using a unitravelling carrier photodiode and a dual-mode laser
Author :
Ducournau, G. ; Rolland, A. ; Loas, G. ; Beck, A. ; Pavanello, F. ; Peytavit, E. ; Akalin, T. ; Zaknoune, M. ; Lampin, J.F. ; Brunel, M. ; Bondu, F. ; Vallet, M. ; Alouini, M.
Author_Institution :
Inst. d´´Electron. de Micro-Electron. et de Nanotechnol., Univ. de Lille 1, Villeneuve-d´´Ascq, France
Abstract :
A dual-frequency laser coupled to a unitravelling carrier photodiode is used to produce a highly coherent THz wave. THz signal is detected by a subharmonic mixer coupled to an electrical spectrum analyzer. All components involved in this experiment operate at room temperature and no active stabilization is used. The measured linewidth is better than 30 kHz and tunable from DC to 1 THz. The dynamic range is 35 dB at 0.683 THz.
Keywords :
millimetre wave lasers; millimetre wave mixers; photodiodes; spectral analysers; terahertz wave generation; dual-frequency laser; dual-mode laser; electrical spectrum analyzer; frequency 0.683 THz; frequency 30 kHz; narrow linewidth tunable THz signal generation; subharmonic mixer; unitravelling carrier photodiode; Frequency measurement; Laser beams; Laser modes; Masers; Measurement by laser beam; Mixers; Photodiodes;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on
Conference_Location :
Wollongong, NSW
Print_ISBN :
978-1-4673-1598-2
Electronic_ISBN :
2162-2027
DOI :
10.1109/IRMMW-THz.2012.6380162
