A mode-locked and Q-switched short pulse laser using Nd3+ /Cr3+: YAG ceramic has been constructed with a semiconductor 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 laser. A single-mode locked laser pulse with fast modulation on the order of 100 ps was obtained in some pump power regimes when using Cr4+:YAG crystal. The obtained pulse duration of the short pulse was a few hundred ps.
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[v1] 2019-11-23 07:59:38
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