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采用角度磨抛的方式, 在纤芯/包层为20/400 μm双包层掺Yb光纤上制作了侧面抽运耦合器. 该耦合器对975 nm的半导体二极管抽运光的耦合效率最高可达97%, 对1080 nm信号光的泄漏比小于2%. 分析了侧面抽运耦合器的性能以及多个侧面抽运耦合器的级联分布对抽运耦合效率的影响; 同时, 在前向抽运和双向抽运方式下, 分析了级联耦合器的分布及信号光泄漏比对激光器整体效率的影响, 并进行了数值模拟. 采用自行研制的侧面抽运耦合器, 搭建了侧面耦合分布式抽运、掺Yb双包层全光纤主振荡功率放大器, 获得了波长为1080 nm、功率为303 W 的基模激光输出. 进一步增加抽运点个数, 提高抽运功率, 可获得更高的输出功率.
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关键词:
- 光纤放大器 /
- 角度磨抛侧面抽运耦合器 /
- 侧面分布式抽运 /
- 信号光泄漏比
The angle-polished side-pump coupler is fabricated by fused splicing angle-polished multimode fibers and 20/400 μm double-clad Yb-doped large mode area fiber together. The coupling efficiency of side-pumped coupler for 975 nm pumping light can reach up to 97%, and the leakage ratio of 1080 nm signal light is less than 2%. We analyze the performance of a single side-pumped coupler and also the influence of the distribution of cascade stage couplers on the efficiency of fiber amplifier. Using self-developed side-pumped couplers, we build a distributed side-pumped, ytterbium-doped double-clad all-fiber master oscillator amplifier, and an continuous and single mode laser of 1080 nm wavelength with a 303 W maximum output power is obtained. Finally, increasing the number of the side couplers to improve pump power, the output power of the amplifier becomes higher.-
Keywords:
- fiber amplifier /
- angle-polished side-pumped couplers /
- distributed side-pump /
- leakage ratio of signal light
[1] Jeong Y, Sahu J K, Payne D N, Nilsson J 2004 Opt. Express 12 6088
[2] Limpert J, Roser F, Klingebiel S, Schreiber T, Wirth C, Peschel T, Eberhardt R, Tunnermann A 2007 IEEE J. Sel. Top. Quant. Electron. 13 537
[3] Gapontsev V, Gapontsev D, Platonov N, Shkurikhin O, Fomin V, Mashkin A, Abramov M, Ferin S 2005 2 kW CW Ytterbium Fiber Laser with Record Diffraction-limited Brightness (IEEE: Conference on Lasers and Electro-Optics Europe) p508
[4] Duan K L, Zhao B Y, Zhao W, Wang Q S, Zhou L 2009 Chin. J. Lasers 12 3219 (in Chinese) [段开椋, 赵保银, 赵卫, 王屹山, 周良 2009 中国激光 12 3219]
[5] Yang W Q, Hou J, Song R, Liu Z J 2011 Acta Phys. Sin. 60 084210 (in Chinese) [杨未强, 侯静, 宋锐, 刘泽金 2011 物理学报 60 084210]
[6] Zhu J J, Du W B, Zhou P, Xu X J, Liu Z J 2012 Acta Phys. Sin 61 064209 (in Chinese) [朱家健, 杜文博, 周朴, 许晓军, 刘泽金 2012 物理学报 61 064209]
[7] Larsen J J, Vienne G 2004 Opt. Lett. 29 436
[8] Weber T, Lthy W, Weber H P 1996 Appl. Phys. B 63 131
[9] Ripin D J, Goldberg L 1995 Electron. Lett. 31 2204
[10] Wang D Z, Wang Y G, Liu S P, Ma X Y 2009 Acta Opt. Sin. 29 974 (in Chinese) [王大拯, 王勇刚, 刘素平, 马骁宇 2009 光学学报 29 974]
[11] Moore S W, Koplow J P, Hansen A, Kliner D A V, Wien G 2008 Conference on Quantum Electronics and Laser Science San Jose, USA, May 4-9, 2008 p1
[12] Zhang F, Wang C C, Ning T G, Liu C, Geng R, Lu Y C 2009 Opt. Commun. 282 3325
[13] Zhang F, Wang C C, Ning T G, Liu C, Geng R, Lu Y C 2010 J. Opt. 12 015501
[14] Jauregui C, Böhme S, Wenetiadis G, Limpert J, Tnnermann A 2010 Proc. SPIE 7580 75801E
[15] Ou P, Yan P, Gong M L, Wei W L 2004 Chin. Opt. Lett. 2 285
[16] Ou P, Yan P, Gong M L, Zhang C X 2008 Laser Technol. 32 8 (in Chinese) [欧攀, 闫平, 巩马理, 张春熹 2008 激光技术 32 8]
[17] Xiao Q, Yan P, Yin S, Hao J, Gong M L 2011 Laser Phys. Lett. 8 125
[18] Yan P, Gong M L, Li C, Ou P, Xu A A 2005 Opt. Express 13 2699
[19] Ou P, Yan P, Gong M L, Wei W L, Yuan Y Y 2004 Opt. Commun. 239 421
[20] Glick Y, Sintov Y, Koplowitch T, Nafcha Y 2007 Conference on Lasers and Electro-Optics Baltimore, USA, May 6-11, 2007 p1
[21] Sintov Y, Glick Y, Koplowitch T, Katz O, Nafcha Y, Shamir Y, Lavi R 2007 Proc. SPIE 6552 65520R
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[1] Jeong Y, Sahu J K, Payne D N, Nilsson J 2004 Opt. Express 12 6088
[2] Limpert J, Roser F, Klingebiel S, Schreiber T, Wirth C, Peschel T, Eberhardt R, Tunnermann A 2007 IEEE J. Sel. Top. Quant. Electron. 13 537
[3] Gapontsev V, Gapontsev D, Platonov N, Shkurikhin O, Fomin V, Mashkin A, Abramov M, Ferin S 2005 2 kW CW Ytterbium Fiber Laser with Record Diffraction-limited Brightness (IEEE: Conference on Lasers and Electro-Optics Europe) p508
[4] Duan K L, Zhao B Y, Zhao W, Wang Q S, Zhou L 2009 Chin. J. Lasers 12 3219 (in Chinese) [段开椋, 赵保银, 赵卫, 王屹山, 周良 2009 中国激光 12 3219]
[5] Yang W Q, Hou J, Song R, Liu Z J 2011 Acta Phys. Sin. 60 084210 (in Chinese) [杨未强, 侯静, 宋锐, 刘泽金 2011 物理学报 60 084210]
[6] Zhu J J, Du W B, Zhou P, Xu X J, Liu Z J 2012 Acta Phys. Sin 61 064209 (in Chinese) [朱家健, 杜文博, 周朴, 许晓军, 刘泽金 2012 物理学报 61 064209]
[7] Larsen J J, Vienne G 2004 Opt. Lett. 29 436
[8] Weber T, Lthy W, Weber H P 1996 Appl. Phys. B 63 131
[9] Ripin D J, Goldberg L 1995 Electron. Lett. 31 2204
[10] Wang D Z, Wang Y G, Liu S P, Ma X Y 2009 Acta Opt. Sin. 29 974 (in Chinese) [王大拯, 王勇刚, 刘素平, 马骁宇 2009 光学学报 29 974]
[11] Moore S W, Koplow J P, Hansen A, Kliner D A V, Wien G 2008 Conference on Quantum Electronics and Laser Science San Jose, USA, May 4-9, 2008 p1
[12] Zhang F, Wang C C, Ning T G, Liu C, Geng R, Lu Y C 2009 Opt. Commun. 282 3325
[13] Zhang F, Wang C C, Ning T G, Liu C, Geng R, Lu Y C 2010 J. Opt. 12 015501
[14] Jauregui C, Böhme S, Wenetiadis G, Limpert J, Tnnermann A 2010 Proc. SPIE 7580 75801E
[15] Ou P, Yan P, Gong M L, Wei W L 2004 Chin. Opt. Lett. 2 285
[16] Ou P, Yan P, Gong M L, Zhang C X 2008 Laser Technol. 32 8 (in Chinese) [欧攀, 闫平, 巩马理, 张春熹 2008 激光技术 32 8]
[17] Xiao Q, Yan P, Yin S, Hao J, Gong M L 2011 Laser Phys. Lett. 8 125
[18] Yan P, Gong M L, Li C, Ou P, Xu A A 2005 Opt. Express 13 2699
[19] Ou P, Yan P, Gong M L, Wei W L, Yuan Y Y 2004 Opt. Commun. 239 421
[20] Glick Y, Sintov Y, Koplowitch T, Nafcha Y 2007 Conference on Lasers and Electro-Optics Baltimore, USA, May 6-11, 2007 p1
[21] Sintov Y, Glick Y, Koplowitch T, Katz O, Nafcha Y, Shamir Y, Lavi R 2007 Proc. SPIE 6552 65520R
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