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Beam combination (BC) of fiber amplifiers based on master-oscillator-power-amplifier configuration is an outstanding way to generate high power and high beam quality laser output, where the tip/tilt aberrations among beamlets are considered as a serious influence factor to BC effects. In this paper, a new tip/tilt control method based on adaptive power-in-the-bucket (PIB) cost function is proposed to solve the problem of restricted tip/tilt correcting value in current BC systems. Experimental setup of coherent BC of two-channel 2 W fiber amplifier array is established. Home-made piezoelectric-ring fiber-optic phase-modulator and adaptive fiber-optics collimator are employed to correct piston-and tip/tilt-type aberrations, respectively. The feasibility of proposed tip/tilt control method using adaptive-PIB is demonstrated and nice effect of coherent BC is achieved.
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Keywords:
- fiber laser array /
- tip/tilt control /
- adaptive power-in-the-bucket /
- coherent beam combining
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[2] Wang J M, Duan K L, Wang Y S 2008 Acta Phys. Sin. 57 5627 (in Chinese) [王建明, 段开椋, 王屹山 2008 57 5627]
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[17] Wang X H, Fu Q, Shen F, Rao C H 2012 Opt. Express 20 4663
[18] Bourdon P, Jolivet V, Bennai B, Lombard L, Goular D, Canat G, Vasseur O 2009 Proc. SPIE 7195 719527
[19] Weyrauch T, Vorontsov M, Carhart G, Beresnev L, Rostov A, Polnau E, Liu J 2011 Opt. Lett. 36 4455
[20] Geng C, Li X Y, Zhang X J, Rao C H 2012 Acta Phys. Sin. 61 034204 (in Chinese) [耿超, 李新阳, 张小军, 饶长辉 2012 61 034204]
[21] Luo W, Geng C, Li X Y 2012 High Power Laser Part. Beams 24 1641 (in Chinese) [罗文, 耿超, 李新阳 2012 强激光与粒子束 24 1641]
[22] Tan Y, Geng C, Luo W, Liu H M, Wu Y Y, Li X Y 2012 Chinese Patent 201210485286.8 (in Chinese) [谭毅, 耿超, 罗文, 刘红梅, 武云云, 李新阳 2012 中国专利 201210485286.8]
[23] Geng C, Luo W, Li X Y, Tan Y, Wu Y Y, Liu H M, Mu J B 2013 Chinese Patent 201310161222.7 (in Chinese) [耿超, 罗文, 李新阳, 谭毅, 武云云, 刘红梅, 牟进博 2013 中国专利 201310161222.7]
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[1] Fan T Y 2005 IEEE J. Sel. Top. Quantum Electron. 11 567
[2] Wang J M, Duan K L, Wang Y S 2008 Acta Phys. Sin. 57 5627 (in Chinese) [王建明, 段开椋, 王屹山 2008 57 5627]
[3] Yang R F, Yang P, Shen F 2009 Acta Phys. Sin. 58 8297 (in Chinese) [杨若夫, 杨平, 沈锋 2009 58 8297]
[4] Lian T H, Wang S Y, Guo Z, Li B B, Cai D F, Wen J G 2011 Acta Phys. Sin. 60 124208 (in Chinese) [连天虹, 王石语, 过振, 李兵斌, 蔡德芳, 文建国 2011 60 124208]
[5] Wang X L, Ma Y X, Zhou P, He B, Xue Y H, Liu C, Li Z, Xiao H, Xu X J, Zhou J, Liu Z J, Zhao Y J 2011 Chin. Phys. B 20 114203
[6] Yu C X, Augst S J, Redmond S M, Goldizen K C, Murphy D V, Sanchez A, Fan T Y 2011 Opt. Lett. 36 2686
[7] Wirth C, Schmidt O, Tsybin I, Schreiber T, Eberhardt R, Limpert J, Tunnermann A, Ludewigt K, Gowin M, Have E, Jung M 2011 Opt. Lett. 36 3118
[8] Wang X L, Zhou P, Ma Y X, Leng J Y, Xu X J, Liu Z J 2011 Opt. Lett. 36 3121
[9] Geng C, Zhao B Y, Zhang E T, Luo W, Tan Y, Zhu Y G, Yang H N, Mu J B, Li X Y, Duan K L, Zhao W 2013 IEEE Photon. Technol. Lett. 25 1286
[10] Vorontsov M, Weyrauch T, Beresnev L, Carhart G, Liu L, Aschenbach K 2009 IEEE J. Sel. Top. Quantum Electron. 15 269
[11] Geng C, Li X Y, Zhang X J, Rao C H 2011 Opt. Commun. 284 5531
[12] Geng C, Tan Y, Mu J B, Li X Y 2013 Acta Phys. Sin. 62 024206 (in Chinese) [耿超, 谭毅, 牟进博, 李新阳 2013 62 024206]
[13] Wang X, Wang X L, Zhou P, Su R T, Geng C, Li X Y, Xu X J, Shu B H 2013 Chin. Phys. B 22 024206
[14] Lachinova S, Vorontsov M 2008 J. Opt. Soc. Am. A 25 1960
[15] Geng C, Li X Y, Zhang X J, Rao C H 2011 Acta Phys. Sin. 60 114202 (in Chinese) [耿超, 李新阳, 张小军, 饶长辉 2011 60 114202]
[16] Goodno G D, Weiss S B 2012 Opt. Express 20 14945
[17] Wang X H, Fu Q, Shen F, Rao C H 2012 Opt. Express 20 4663
[18] Bourdon P, Jolivet V, Bennai B, Lombard L, Goular D, Canat G, Vasseur O 2009 Proc. SPIE 7195 719527
[19] Weyrauch T, Vorontsov M, Carhart G, Beresnev L, Rostov A, Polnau E, Liu J 2011 Opt. Lett. 36 4455
[20] Geng C, Li X Y, Zhang X J, Rao C H 2012 Acta Phys. Sin. 61 034204 (in Chinese) [耿超, 李新阳, 张小军, 饶长辉 2012 61 034204]
[21] Luo W, Geng C, Li X Y 2012 High Power Laser Part. Beams 24 1641 (in Chinese) [罗文, 耿超, 李新阳 2012 强激光与粒子束 24 1641]
[22] Tan Y, Geng C, Luo W, Liu H M, Wu Y Y, Li X Y 2012 Chinese Patent 201210485286.8 (in Chinese) [谭毅, 耿超, 罗文, 刘红梅, 武云云, 李新阳 2012 中国专利 201210485286.8]
[23] Geng C, Luo W, Li X Y, Tan Y, Wu Y Y, Liu H M, Mu J B 2013 Chinese Patent 201310161222.7 (in Chinese) [耿超, 罗文, 李新阳, 谭毅, 武云云, 刘红梅, 牟进博 2013 中国专利 201310161222.7]
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