Title :
Actively Controlled Enhancement Cavity For Terahertz Generation
Author :
Theuer, M. ; Molter, D. ; Torosyan, G. ; Beigang, R. ; Maki, K. ; Kawase, K.
Author_Institution :
Fraunhofer Inst., Kaiserslautern
Abstract :
We report on the efficient Cherenkov-type terahertz (THz) generation using lithium niobate crystals and a high repetition rate femtosecond laser. An actively length controlled synchronously pumped ring resonator acts as an enhancement cavity for the near infrared pump and therefore recycles the available pump power towards a higher terahertz output. A seven times higher THz field amplitude was measured with electro-optical sampling.
Keywords :
laser cavity resonators; lithium; optical pumping; ring lasers; submillimetre wave lasers; actively controlled enhancement cavity; electrooptical sampling; femtosecond laser; lithium niobate crystals; near infrared pump; pumped ring resonator; terahertz laser; Crystals; Lasers and electrooptics; Lithium niobate; Mirrors; Optical ring resonators; Pump lasers; Resonance; Ring lasers; Sampling methods; Ultrafast optics;
Conference_Titel :
Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics, 2006. IRMMW-THz 2006. Joint 31st International Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0400-2
Electronic_ISBN :
1-4244-0400-2
DOI :
10.1109/ICIMW.2006.368595
