We present a diode-pumped, electro-optically Q-switched Tm:YAG laser with a cryogenically cooled laser crystal at120 K. Output pulses of up to 2.55 mJ and 650 ns duration were demonstrated in an actively Q-switched co...We present a diode-pumped, electro-optically Q-switched Tm:YAG laser with a cryogenically cooled laser crystal at120 K. Output pulses of up to 2.55 mJ and 650 ns duration were demonstrated in an actively Q-switched configuration with a repetition rate of 1 Hz. By using cavity dumping the pulse duration was shortened to 18 ns with only a slightly lower output energy of 2.22 mJ. Furthermore, using a simplified rate equation model, we discuss design constraints on the pump fluence in a pulse pump approach for Tm:YAG to maximize the energy storage capability at a given pump power.展开更多
基金funding from the European Union’s Horizon 2020 research and innovation programme(871124 Laserlab-Europe and 739573)the Thuringian Ministry for Economic Affairs,Science and Digital Society(2016FE9058)+2 种基金Bundesministerium für Bildung und Forschung(BMBF)(03ZIK445,05P15SJFA1,03Z1H531,03VNE2068D)the European Regional Development Fund and the state budget of the Czech Republic(project Hi LASE CZ.02.1.01/0.0/0.0/15006/0000674)the Ministry of Education,Youth and Sports of the Czech Republic(NPU I Project No.LO1602)。
文摘We present a diode-pumped, electro-optically Q-switched Tm:YAG laser with a cryogenically cooled laser crystal at120 K. Output pulses of up to 2.55 mJ and 650 ns duration were demonstrated in an actively Q-switched configuration with a repetition rate of 1 Hz. By using cavity dumping the pulse duration was shortened to 18 ns with only a slightly lower output energy of 2.22 mJ. Furthermore, using a simplified rate equation model, we discuss design constraints on the pump fluence in a pulse pump approach for Tm:YAG to maximize the energy storage capability at a given pump power.
