Title :
Actively stabilized synchronously pumped enhancement cavity for THz generation
Author :
Molter, D. ; Theuer, M. ; Torosyan, G. ; Beigang, R. ; Maki, K. ; Otani, C.
Author_Institution :
Dept. of THz Meas. & Syst., Fraunhofer Inst. for Phys. Meas. Tech., Kaiserslautern
Abstract :
We report on an actively controlled enhancement cavity for terahertz generation using optical rectification in lithium niobate. By recycling the transmitted fundamental laser power from a Ti:Sapphire laser an increased pump power is available for the nonlinear process. Therefore a much higher THz signal is obtained in relation to single-pass geometry. Terahertz intensities generated by different emitters are compared with Cherenkov-type generation in the enhancement cavity.
Keywords :
geometry; high-speed optical techniques; optical pumping; rectification; submillimetre wave generation; Cherenkov-type generation; THz generation; THz signal; actively stabilized synchronously pumped enhancement cavity; lithium niobate; nonlinear process; optical rectification; single-pass geometry; transmitted fundamental laser power; Laser excitation; Lithium niobate; Nonlinear optics; Optical control; Optical pumping; Power lasers; Pump lasers; Recycling; Stimulated emission; Synchronous generators; nonlinear media; terahertz; ultrafast optics;
Conference_Titel :
Infrared and Millimeter Waves, 2007 and the 2007 15th International Conference on Terahertz Electronics. IRMMW-THz. Joint 32nd International Conference on
Conference_Location :
Cardiff
Print_ISBN :
978-1-4244-1438-3
DOI :
10.1109/ICIMW.2007.4516582
