物理学报Issue(21)：137-143,7.DOI:10.7498/aps.63.214205
Tm，Ho双掺调Q激光系统理论与实验研究
Theoretical and exp erimental researches on Tm and Ho co dop ed Q-switching laser
摘要
Abstract
The distribution of population inversion has been obtained by solving the rate equations of a Tm and Ho codoped laser system. A giant pulse laser output of 88.4 mJ with pulse duration of 426 ns has been predicted at 0.1% duty cycle of LD pump source. In a 2 m ring resonator, the Tm, Ho:LuLF laser material has been side-pumped from three directions and Q-switched for acoustic-optic device. The slope efficiency is 6.36% in free running mode and 2.9% in Q-switching mode. When 3.25 J pump energy in 1 Hz repetition frequency is injected, it has been demonstrated that the laser pulse energy of 103.2 mJ with an optical-to-optical efficiency of 3.17% in the free running mode and 30.3 mJ with 0.93%optical-to-optical efficiency. When 3.5 J pump energy is injected, it has been obtained that the pulse energies of 129.3 mJ and 35.9 mJ in the two modes with optical-to-optical efficiencies of 3.69% and 1.02% respectively. The greatest dynamic to static ratio is 32.8%. The pulse duration is 417.2 ns when 3.25J pump energy is injected. If the ring resonator operates unidirectionally, the laser energy and the corresponding optical efficiency will be doubled, the result being in agreement with the theoretical analysis of rate equations.关键词
Tm/Ho:LuLF/速率方程/能级/调Q激光Key words
Tm/Ho:LuLF/rate equations/energy transfer/Q-laser引用本文复制引用
乔亮,羊富贵,武永华,柯友刚,夏忠朝..Tm，Ho双掺调Q激光系统理论与实验研究[J].物理学报,2014,(21):137-143,7.基金项目
福建省自然科学基金(批准号:2012J05109)、福建省教育厅科技项目(批准号：JA12333, JA12332, JK2012058)、福建江夏学院科研项目(批准号:2011C036)和福建省公共基础课实验教学平台项目(物理综合创新实验中心)资助的课题.* Project supported by the Natural Science Foundation of Fujian Province, China (Grant No.2012J05109), the Science-Technology Foundation of the Education Department of Fujian Province, China (Grant Nos. JA12333, JA12332, JK2012058), the Scientific Research Program of Fujian Jiangxia University, China (Grant No.2011C036), and the Experi-mental Teaching Platform Program of Fundamental Course of Fujian Province (Physics Innovative Experimental Centre) （批准号:2012J05109）
