基于大模面积掺Yb光纤的100W种子光主振荡器功率放大技术（英文）
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摘要
演示了一种基于大模面积掺Yb~(3+)离子的全光纤放大器系统,该系统采用975 nm泵浦。系统是利用泵浦与Yb~(3+)离子有源光纤相互作用产生信号源,光源为半导体激光放大的单频种子。通过优化系统,合理设计搭建光学器件,控制光束逆传输,减少非线性光学的干扰。100 W信号源作用于系统上,采用多级掺镱光放大的主振荡器功率放大器(MOPA),最大输出3.2 kW连续激光。平均光-光转化效率为78.26%。光束质量Mx2≈1.657,My2≈1.735。输出稳定性小于2%。系统连续信号放大输出光具有广泛的应用范围。掺Yb~(3+)离子的全光纤放大主要用于激光检测、工业测量技术研究等领域。
A all fiber amplifier system was demonstrated based on large modulus area doped with Yb~(3+) ions, which used a 975 nm pump. The system used the interaction between the pump and Yb~(3+) ion active fiber to generate a signal source. Signal source was semiconductor laser amplified single-frequency seed light. The system was optimized, optical devices were reasonably designed and built, and the beam inverse transmission was controled to reduce the nonlinear optical interference. 100 W signal source acted on the system, the master oscillator power amplifier(MOPA) of multistage Yb~(3+) doped optical amplifier was adopted, the signal output 3.2 kW continuous laser. The average optical-to-optical conversion efficiency was about 78.26%. Output beam quality Mx2 ≈1.657, My2 ≈1.735. Output stability was less than 2%. The system continuous signal amplification output beam had a wide range of applications. The ytterbium doped ions all-fiber amplifier is mainly used in laser detection, industry measurement technology research, etc.
A all fiber amplifier system was demonstrated based on large modulus area doped with Yb~(3+) ions, which used a 975 nm pump. The system used the interaction between the pump and Yb~(3+) ion active fiber to generate a signal source. Signal source was semiconductor laser amplified single-frequency seed light. The system was optimized, optical devices were reasonably designed and built, and the beam inverse transmission was controled to reduce the nonlinear optical interference. 100 W signal source acted on the system, the master oscillator power amplifier(MOPA) of multistage Yb~(3+) doped optical amplifier was adopted, the signal output 3.2 kW continuous laser. The average optical-to-optical conversion efficiency was about 78.26%. Output beam quality Mx2 ≈1.657, My2 ≈1.735. Output stability was less than 2%. The system continuous signal amplification output beam had a wide range of applications. The ytterbium doped ions all-fiber amplifier is mainly used in laser detection, industry measurement technology research, etc.
引文
[1] Lou Qihong, Zhou Jun, Zhu Jianqiang, et al. Recent progress of high power fiber lasers[J]. Infrared and Laser Engineering, 2006, 35(2):135-138.(in Chinese)
[2] Stiles E. New developments in IPG fiber laser technology[C]//The 5th International Workshop on Fiber Lasers, 2009.
[3] He B, Zhou J, Lou Q, et al. 1.75 KW continuous-wave output fiber laser using homemade ytterbium-dopedlargecorefiber[J]. Microwave&Optical Technology Letters,2010, 52(7):1668-1671.
[4] Wirth C, Schmidt O, Tsybin I, et al. 2 kW incoherent beam combining of four narrow-linewidth photonic crystal fiber amplifiers[J]. Optics Express, 2009, 17(3):1178-1183.
[5] Jeong Y, Sahu J K, Panyne D N, et al. Ytterbium-doped large-core fiber laser 1.36 kW continuous wave outputpower[J]. Optics Express, 2004, 12:6088-6092.
[6] Jeong Y, Boyland A J, Sahu J K, et al. Multi-kilowatt single-mode ytterbium doped large-core fiber laser[J].Journal of the Optical Society of Korea, 2009, 13:416-422.
[7] Khitrov V, Minelly J D, Tumminelli R, et al. 3 kW singlemode direct diode-pumped fiber laser[C]//SPIE, 2014,8961:89610V.
[8] Xiao Y, Brunet F, Kanskar M, et al. 1-kilowatt CW all fiber laser oscillator pumped with wavelength-beamcombined diode stacks[J]. Optics Express, 2012, 20:3296-3331.
[9] Kliner D, Yu H, Lu J, et al. KW fiber lasers[J]. Optical Fiber Communication Technical Digest Optical Society of America, 2012, 3:1-3.
[10] Becker F, Neumann B, Winkelmann L, et al. Multi-kw CW fiber oscillator pumped by wavelength stabilized fiber coupled diode lasers[C]//SPIE, 2013, 8601:860131.
[11] Kelson I, Hardy A A. Optimization of strongly pumped fiber lasers[J]. Lightwave Technol, 1999, 17(5):891-898.
[12] Xiao Limin, Yan Ping, Guo Mali, et al. An approximate analytic solution of strongly pumped Yb-doped double-clad fiber lasers without neglecting the scattering loss[J]. Optics Communication, 2004, 230(2):401-410.
[13] Kim N S, Hamada T, Prabhu M, et al. Numerical analysis and experimental results of output performance for Nd-doped double-cladfiber lasers[J]. Optics Communications, 2000,180(2):329-337.
[2] Stiles E. New developments in IPG fiber laser technology[C]//The 5th International Workshop on Fiber Lasers, 2009.
[3] He B, Zhou J, Lou Q, et al. 1.75 KW continuous-wave output fiber laser using homemade ytterbium-dopedlargecorefiber[J]. Microwave&Optical Technology Letters,2010, 52(7):1668-1671.
[4] Wirth C, Schmidt O, Tsybin I, et al. 2 kW incoherent beam combining of four narrow-linewidth photonic crystal fiber amplifiers[J]. Optics Express, 2009, 17(3):1178-1183.
[5] Jeong Y, Sahu J K, Panyne D N, et al. Ytterbium-doped large-core fiber laser 1.36 kW continuous wave outputpower[J]. Optics Express, 2004, 12:6088-6092.
[6] Jeong Y, Boyland A J, Sahu J K, et al. Multi-kilowatt single-mode ytterbium doped large-core fiber laser[J].Journal of the Optical Society of Korea, 2009, 13:416-422.
[7] Khitrov V, Minelly J D, Tumminelli R, et al. 3 kW singlemode direct diode-pumped fiber laser[C]//SPIE, 2014,8961:89610V.
[8] Xiao Y, Brunet F, Kanskar M, et al. 1-kilowatt CW all fiber laser oscillator pumped with wavelength-beamcombined diode stacks[J]. Optics Express, 2012, 20:3296-3331.
[9] Kliner D, Yu H, Lu J, et al. KW fiber lasers[J]. Optical Fiber Communication Technical Digest Optical Society of America, 2012, 3:1-3.
[10] Becker F, Neumann B, Winkelmann L, et al. Multi-kw CW fiber oscillator pumped by wavelength stabilized fiber coupled diode lasers[C]//SPIE, 2013, 8601:860131.
[11] Kelson I, Hardy A A. Optimization of strongly pumped fiber lasers[J]. Lightwave Technol, 1999, 17(5):891-898.
[12] Xiao Limin, Yan Ping, Guo Mali, et al. An approximate analytic solution of strongly pumped Yb-doped double-clad fiber lasers without neglecting the scattering loss[J]. Optics Communication, 2004, 230(2):401-410.
[13] Kim N S, Hamada T, Prabhu M, et al. Numerical analysis and experimental results of output performance for Nd-doped double-cladfiber lasers[J]. Optics Communications, 2000,180(2):329-337.