室温下零声子线抽运Yb…YAG板条放大器的理论研究
|
摘要
对室温下零声子线(抽运波长为969 nm)抽运Yb…YAG激光器进行了理论研究,建立了969 nm抽运Yb…YAG的速率方程。在相同热负载状态下,通过数值模拟分别得到969 nm和941 nm抽运时Yb…YAG板条放大器的光-光转换效率和输出激光强度。模拟结果表明:941 nm和969 nm抽运的光-光转换效率基本相同;抽运波长为969 nm的抽运强度比941 nm提高了20%以上。
The theoretical research on the Yb…YAG laser pumped by the zero-phonon line with pumping wavelength of 969 nm is constructed, and the rate equations for this 969 nm pumped Yb…YAG laser are established. The optical-to-optical efficiency and the output laser intensity of this Yb…YAG slab laser amplifier pumped at 969 nm or 941 nm are obtained by numerical simulation under the same thermal load state. The simulation results show that the optical-to-optical efficiencies for both are almost equivalent. The pumping intensity for 969 nm pumping is 20% higher than that for 941 nm pumping.
The theoretical research on the Yb…YAG laser pumped by the zero-phonon line with pumping wavelength of 969 nm is constructed, and the rate equations for this 969 nm pumped Yb…YAG laser are established. The optical-to-optical efficiency and the output laser intensity of this Yb…YAG slab laser amplifier pumped at 969 nm or 941 nm are obtained by numerical simulation under the same thermal load state. The simulation results show that the optical-to-optical efficiencies for both are almost equivalent. The pumping intensity for 969 nm pumping is 20% higher than that for 941 nm pumping.
引文
[1]Bowman S R.High-power diode-pumped solid-state lasers[J].Optical Engineering,2013,52(2):021012.
[2]Sueda K,Takahashi H,Kawato S,et al.Highefficiency laser-diodes-pumped microthickness Yb…Y3Al5O12 slab laser[J].Applied Physics Letters,2005,87(15):151110.
[3]Matsubara S,Ueda T,Takamido T,et al.Nearly quantum-efficiency limited oscillation of Yb…YAGlaser at room temperature[C].Conference on lasers and electro-optics,2005:325-327.
[4]Fan T Y.Heat generation in Nd…YAG and Yb…YAG[J].IEEE Journal of Quantum Electronics,1993,29(6):1457-1459.
[5]Bruesselbach H W,Sumida D S,Reeder R A,et al.Low-heat high-power scaling using InGaAs-diodepumped Yb…YAG lasers[J].IEEE Journal of Selected Topics in Quantum Electronics,1997,3(1):105-116.
[6]Huang C H,Huang J H,Zhang G,et al.A method for accurate calculation of the absorption coefficients of optical materials[J].Laser Journal,2001,22(6):45-46.黄呈辉,黄见洪,张戈,等.一种精确计算光学材料吸收系数的方法[J].激光杂志,2001,22(6):45-46.
[7]Dong J,Bass M,Mao Y L,et al.Dependence of the Yb3+emission cross section and lifetime on temperature and concentration in yttrium aluminum garnet[J].Journal of the Optical Society of America B,2003,20(9):1975-1979.
[8]Casagrande O,Deguil-Robin N,Le Garrec B,et al.Time and spectrum resolved model for quasi-threelevel gain-switched lasers[J].IEEE Journal of Quantum Electronics,2007,43(2):206-212.
[9]Liu Q,Fu X,Gong M L,et al.Effects of the temperature dependence of absorption coefficients in edge-pumped Yb…YAG slab lasers[J].Journal of the Optical Society of America B,2007,24(9):2081-2089.
[10]Sumida D S,Fan T Y.Effect of radiation trapping on fluorescence lifetime and emission cross section measurements in solid-state laser media[J].Optics Letters,1994,19(17):1343-1345.
[11]Chen B,Dong J,Patel M,et al.Modeling of highpower solid state slab lasers[J].Proceedings of SPIE,2003,4968:501664.
[12]Li M,Zhou T J,Xu L,et al.High power continuous wave Yb…YAG composite crystal zigzag slab amplifier at room temperature[J].IEEE Photonics Journal,2017,9(6):1-9.
[2]Sueda K,Takahashi H,Kawato S,et al.Highefficiency laser-diodes-pumped microthickness Yb…Y3Al5O12 slab laser[J].Applied Physics Letters,2005,87(15):151110.
[3]Matsubara S,Ueda T,Takamido T,et al.Nearly quantum-efficiency limited oscillation of Yb…YAGlaser at room temperature[C].Conference on lasers and electro-optics,2005:325-327.
[4]Fan T Y.Heat generation in Nd…YAG and Yb…YAG[J].IEEE Journal of Quantum Electronics,1993,29(6):1457-1459.
[5]Bruesselbach H W,Sumida D S,Reeder R A,et al.Low-heat high-power scaling using InGaAs-diodepumped Yb…YAG lasers[J].IEEE Journal of Selected Topics in Quantum Electronics,1997,3(1):105-116.
[6]Huang C H,Huang J H,Zhang G,et al.A method for accurate calculation of the absorption coefficients of optical materials[J].Laser Journal,2001,22(6):45-46.黄呈辉,黄见洪,张戈,等.一种精确计算光学材料吸收系数的方法[J].激光杂志,2001,22(6):45-46.
[7]Dong J,Bass M,Mao Y L,et al.Dependence of the Yb3+emission cross section and lifetime on temperature and concentration in yttrium aluminum garnet[J].Journal of the Optical Society of America B,2003,20(9):1975-1979.
[8]Casagrande O,Deguil-Robin N,Le Garrec B,et al.Time and spectrum resolved model for quasi-threelevel gain-switched lasers[J].IEEE Journal of Quantum Electronics,2007,43(2):206-212.
[9]Liu Q,Fu X,Gong M L,et al.Effects of the temperature dependence of absorption coefficients in edge-pumped Yb…YAG slab lasers[J].Journal of the Optical Society of America B,2007,24(9):2081-2089.
[10]Sumida D S,Fan T Y.Effect of radiation trapping on fluorescence lifetime and emission cross section measurements in solid-state laser media[J].Optics Letters,1994,19(17):1343-1345.
[11]Chen B,Dong J,Patel M,et al.Modeling of highpower solid state slab lasers[J].Proceedings of SPIE,2003,4968:501664.
[12]Li M,Zhou T J,Xu L,et al.High power continuous wave Yb…YAG composite crystal zigzag slab amplifier at room temperature[J].IEEE Photonics Journal,2017,9(6):1-9.