Title :
Characterization of OPCPA with BBO crystal for femtosecond Ti:sapphire laser pulses
Author :
Cha, Yong Ho ; Lee, Kitae ; Nam, Seong MO ; Yoo, Byoungduk ; Rhee, Yong Joo ; Kim, Cheoljung
Author_Institution :
Lab. for Quantum Opt., Korea Atomic Energy Res. Inst., Daejon, South Korea
Abstract :
We have numerically and experimentally investigated the characteristics of the optical parametric chirped-pulse amplification (OPCPA) of femtosecond Ti:sapphire laser pulses by using BBO crystals. Numerical calculations showed that a high gain and a broad gain bandwidth could be obtained with a 532-nm pump laser. The dependence of the gain profile of OPA on phase matching angles, pump intensity, and crystal length was numerically investigated. Experimental results showed that the broadband amplification of femtosecond Ti:sapphire laser pulses could be realized by OPCPA and that the temporal fluctuation of a pump laser resulted in the modulation of amplified spectra in OPCPA.
Keywords :
barium compounds; chirp modulation; high-speed optical techniques; optical materials; optical parametric amplifiers; optical phase matching; solid lasers; 532 nm; 532-nm pump laser; Al2O3:Ti; BBO; BBO crystal; BaB2O4; OPCPA; amplified spectra modulation; broad gain bandwidth; broadband amplification; crystal length; femtosecond Ti:sapphire laser pulses; optical parametric chirped-pulse amplification; phase matching angles; pump intensity; temporal fluctuation; Chirp; Laser excitation; Nonlinear optics; Optical pulses; Optical pumping; Pulse amplifiers; Pulse modulation; Pump lasers; Stimulated emission; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics, 2003. CLEO/Pacific Rim 2003. The 5th Pacific Rim Conference on
Print_ISBN :
0-7803-7766-4
DOI :
10.1109/CLEOPR.2003.1277086
