Title :
Surface-emitted continuous-wave terahertz radiation using periodically poled lithium niobate
Author :
Sasaki, Y. ; Yokoyama, H. ; Ito, H.
Author_Institution :
Res. Inst. of Electr. Commun., Tohoku Univ., Aoba, Japan
fDate :
6/9/2005 12:00:00 AM
Abstract :
Continuous-wave (CW) terahertz radiation based on nonlinear difference frequency mixing (DFM) of two laser lights outputs is demonstrated. The surface-emitting method generated THz frequency radiation in the perpendicular direction of incident laser light by quasi-phase-matching. Periodically poled lithium niobate (PPLN) served as the nonlinear material for this surface-emitting method. In this case, two diode laser wavelengths of 1.5 μm can be applied as DFM sources, within the range of telecommunications technology.
Keywords :
lithium compounds; multiwave mixing; optical frequency conversion; semiconductor lasers; surface emitting lasers; 1.5 micron; DFM sources; LiNbO3; continuous-wave terahertz radiation; laser diode; nonlinear difference frequency mixing; periodically poled lithium niobate; quasiphase-matching; surface-emitting method; telecommunications technology;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20050587
