QPCPA experiment and results. (IMAGE)
Caption
a, Schematic of QPCPA scheme. The pump at 532 nm amplifies the signal at 810 nm and simultaneously generates the idler at 1550 nm. The generated idler has an absorption by the doped rare-earth ions Sm³⁺. b, Pump-to-signal efficiency and pump depletion versus seed intensity under a pump intensity of ~3 GW cm⁻². c, Pulse profiles of the pump (black), amplified signal at seed intensities of 7 MW cm⁻² (red solid, point Ⅰ marked in b) and 2.5 W cm⁻² (red dashed, point Ⅱ marked in b). The shaded area shows the chirped-pulse profile (spectrum) of the signal seed. The signal chirp is 40 ps nm⁻¹. d, Evolution of the parametric superfluoresecence (PSF) energy (black squares and circles) and probed small-signal gain (blue circles).
Credit
by Jingui Ma, Kainan Xiong, Peng Yuan, Xiaoniu Tu, Jing Wang, Guoqiang Xie, Yanqing Zheng, Liejia Qian
Usage Restrictions
Credit must be given to the creator.
License
CC BY