%0 Journal Article
%T Q-Switched and Mode-Locked Nd/Cr:YAG Ceramic Pulse Laser
%A Hirota
%A N.
%A Iida
%A Y.
%A Kanemori
%A S.
%A Saiki
%A T.
%J -
%D 2020
%R https://doi.org/10.1155/2020/4084587
%X A mode-locked and Q-switched short pulse laser using the Nd3+/Cr3+:YAG ceramic has been constructed with a SESAM and Cr4+:YAG crystal optical switch based on excite state absorption (ESA). Laser oscillations of the pulse laser were observed experimentally. The Nd/Cr:YAG ceramic laser has a high conversion efficiency from white light (such as lamp light or solar light) to the laser. The Nd/Cr:YAG ceramic has a higher laser gain than the Nd:YAG laser for the same pumping power. The laser oscillation can be obtained very easily. A single-mode-locked laser pulse with fast modulation on the order of 100£¿ps was obtained in some pump power regimes when using the Cr4+:YAG crystal. The obtained pulse duration of the short pulse was a few hundred ps. A maximum peak power of 60£¿kW was obtained when using a SESAM. The same level of peak power (60£¿kW) was also obtained when using the Cr4+:YAG crystal
%U https://www.hindawi.com/journals/ijo/2020/4084587/