Title :
Broadband and high power monocycle terahertz pulse generation by χ(2) cascaded processes in LiNbO3
Author :
Jewariya, Mukesh ; Nagai, Masaya ; Ichikawa, Yuki ; Ohtake, Hideyuki ; Sugiura, Toshiharu ; Uehara, Yuzuru ; Tanaka, Koichiro
Author_Institution :
Dept. of Phys., Kyoto Univ., Kyoto, Japan
Abstract :
We propose a novel technique for the generation of high power monocycle terahertz pulse beyond the excitation pulse width limitation. Optical pulse may get modulated by emitted intense THz electric field. This causes excitation pulse compression and consequently gives rise to the enhancement of generation efficiency and its bandwidth. We experimentally demonstrate this chi(2) cascaded processes using tilted wavefront excitation beam by LiNbO3 from Ti:Sapphire and Yb doped fiber laser.
Keywords :
fibre lasers; lithium compounds; optical pulse compression; optical pulse generation; sapphire; submillimetre wave generation; submillimetre wave lasers; titanium; ytterbium; Al2O3:Ti; JkJk:Er; LiNbO3; THz electric field; chi(2) cascaded processes; excitation pulse compression; fiber laser; high-power monocycle terahertz pulse generation; terahertz pulse generation; tilted wavefront excitation beam; Bandwidth; Intensity modulation; Laser excitation; Optical pulse compression; Optical pulse generation; Optical pulses; Power generation; Pulse generation; Pulse modulation; Space vector pulse width modulation;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
