Abstract
We present a sensitive scheme basing on the sensitive intracavity loss modulation to observe photo-refraction (PR) effects of some nonlinear crystals usually used for optical parametric chirped pulse amplification (OPCPA), e.g. BIBO and LBO, pumped by the second harmonic (SH) of intense 800nm ultrashort laser pulse chain. Our results show that the dynamical PR effects of BIBO and LBO crystals need about 10s to reach a steady state or to fade away after their pumping switch on or off. These data imply that using these kinds of crystals for multi-stages OPCPA with the repetition rate from some Hz to tens of Hz, it may be necessary to consider the deterioration of the OPCPA stability due to the PR effects. However, if the repetition rate is high (∼kHz) or low enough (<0.1Hz), the PR effects become negligible for the stability.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
