Theoretical and experimental study on passive mode-locking composite Nd:GdVO4/Nd:GdVO4/Nd:GdVO4 lasers |
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| Affiliation: | 1. Grupo de Química de Materiais, Universidade Federal de Alfenas, Campus de Poços de Caldas, Poços de Caldas, MG, Brazil;2. Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 3900, 14040-901, Ribeirão Preto, SP, Brazil;3. Instituto de Química, Universidade Estdual Paulista Júlio de Mesquita Filho, Araraquara, SP, Brazil;1. Instituto de Química - UFG, Campus II, C.P. 131, CEP 740001-970, Goiânia, GO, Brazil;2. Instituto Federal de Educação, Ciência e Tecnologia - Goiás, Parque Itatiaia, CEP 74968-755, Campus Aparecida de Goiânia, GO, Brazil;3. Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, USP, Av. Bandeirantes, 3900, CEP 14040-901, Ribeirão Preto, SP, Brazil;4. Departamento de Química Geral e Inorgânica, Instituto de Química, UNESP, C.P. 355, CEP 14801-970, Araraquara, SP, Brazil;5. Instituto de Física - UFG, Campus II, C.P.131, CEP 74001-970, Goiânia, GO, Brazil;1. Department of Electrical Engineering, Tarbiat Modares University, Tehran, Iran;2. Nanotechnology Research Group, Institute of Mineral Processing, Academic Center for Education, Culture & Research (ACECR) on TMU, Tehran, Iran;1. School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China;2. Department of Physics, Nanchang University, Nanchang 330031, China;1. School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, PR China;2. School of Electronic Information and Engineering, HuBei University of Science and Technology, Xianning 437005, PR China;3. College of Science, Wuhan University of Science and Technology, Wuhan 430081, PR China |
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| Abstract: | Stable passive mode-locking multi-segment composite Nd:GdVO4 lasers with a semiconductor saturable absorber mirror were demonstrated for the first time. For the composite crystals, the output power increased linearly with the increase of the incident pump power, showing excellent thermo-mechanical performances. While for the conventional crystal, power saturation was observed when the incident pump power exceeded 8.79 W. The maximum average output power of 1.465 W was achieved by Nd(0.1%):GdVO4/Nd(0.5%):GdVO4/Nd(1%):GdVO4 composite crystal at an incident pump power of 9.28 W. The largest pulse energy of 14.90 nJ and the highest peak power of 0.53 kW with a pulse duration of 28.0 ps were also obtained by using the same composite crystal, revealing that the multi-segment composite crystal with a proper combination of Nd3+-doped concentrations could obtain the optimal laser performance. |
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| Keywords: | Diode-pumped Passive mode-locking SESAM |
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