On a global scale, great efforts were made to create TW-class laser systems [1] based on an Optical Parametric Chirped Pulse Amplifier (OPCPA). The generation of stable white light supercontinuum (WLC) in the wavelength range from ~ 500 nm to ~ 1000 nm with picosecond pump pulses [2] simplifies the OPCPA architecture [3] due to the inherent signal and pump synchronization. In the OPA process, the resulting gain depends on the temporal profile of the pump pulse. For strongly chirped signal pulses, the amplification process may possibly lead to a significant decrease in the spectral bandwidth. This problem can be avoided by controlling the temporal shape of the pump pulse. We demonstrate the compact TW-class VIS-IR wavelength range NOPCPA with an almost lossless spectral bandwidth achieved due to the formation of “M”-shaped ps pumping pulses after the SHG-conversion. Moreover, the reuse of depleted pump pulses after some SHG and NOPA stages provides an increase in the overall pump-to-signal energy conversion efficiency.

© 2019 IEEE

PDF Article


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription