Abstract

Coherent beam combining of an 800 W nanosecond single-frequency fiber amplifier array has been demonstrated. Five high-power all-fiberized Yb-fiber amplifiers were tiled into a crisscross array, and the laser beams were actively phase-locked by using the stochastic parallel gradient descent algorithm. The contrast of the far-field intensity pattern of the combined beam was more than 91.6%. The combined pulsed laser has a pulse width of 3.5ns and a peak power of 21.5 kW.

© 2012 Optical Society of America

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2012 (2)

2011 (6)

2010 (3)

2009 (3)

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[CrossRef]

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[CrossRef]

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[CrossRef]

2006 (2)

2005 (1)

C. J. Corcoarn and F. Durville, Appl. Phys. Lett. 86, 201118 (2005).
[CrossRef]

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Azarian, A.

Baker, J. T.

Benham, V.

Beresnev, L. A.

Bourdon, P.

Breitkopf, S.

Cadoret, K.

Canat, G.

Chen, D.

Cheung, E.

Corcoarn, C. J.

C. J. Corcoarn and F. Durville, Appl. Phys. Lett. 86, 201118 (2005).
[CrossRef]

Culpepper, M. A.

Daniault, L.

Di Teodoro, F.

Dong, J.

Dong, X.

Druon, F.

Du, W.

Durville, F.

C. J. Corcoarn and F. Durville, Appl. Phys. Lett. 86, 201118 (2005).
[CrossRef]

Fan, T. Y.

Georges, P.

Goldizen, K. C.

Goodno, G.

Goodno, G. D.

Goular, D.

Guo, S.

P. Zhou, Z. Liu, X. Wang, Y. Ma, H. Ma, X. Xu, and S. Guo, IEEE J. Sel. Top. Quantum Electron. 15, 248 (2009).
[CrossRef]

Hanna, M.

He, B.

Jaouën, Y.

Jolivet, V.

Klenke, A.

Lachinova, S. L.

Leng, J.

Li, L.

Limpert, J.

Liu, Z.

Y. Ma, X. Wang, J. Leng, H. Xiao, X. Dong, J. Zhu, W. Du, P. Zhou, X. Xu, L. Si, Z. Liu, and Y. Zhao, Opt. Lett. 36, 951 (2011).
[CrossRef]

P. Zhou, Z. Liu, X. Wang, Y. Ma, H. Ma, X. Xu, and S. Guo, IEEE J. Sel. Top. Quantum Electron. 15, 248 (2009).
[CrossRef]

P. Zhou, Z. Liu, X. Wang, Y. Ma, H. Ma, and X. Xu, Appl. Phys. Lett. 94, 231106 (2009).
[CrossRef]

Liu, Z. J.

X. L. Wang, P. Zhou, Y. X. Ma, H. T. Ma, X. J. Xu, Z. J. Liu, and Y. J. Zhao, Laser Phys. 20, 1453 (2010).
[CrossRef]

Lombard, L.

Lou, Q.

Lu, L. C. A.

Ma, H.

P. Zhou, Z. Liu, X. Wang, Y. Ma, H. Ma, and X. Xu, Appl. Phys. Lett. 94, 231106 (2009).
[CrossRef]

P. Zhou, Z. Liu, X. Wang, Y. Ma, H. Ma, X. Xu, and S. Guo, IEEE J. Sel. Top. Quantum Electron. 15, 248 (2009).
[CrossRef]

Ma, H. T.

X. L. Wang, P. Zhou, Y. X. Ma, H. T. Ma, X. J. Xu, Z. J. Liu, and Y. J. Zhao, Laser Phys. 20, 1453 (2010).
[CrossRef]

Ma, Y.

R. Su, P. Zhou, X. Wang, Y. Ma, and X. Xu, Opt. Lett. 37, 497 (2012).
[CrossRef]

Y. Ma, X. Wang, J. Leng, H. Xiao, X. Dong, J. Zhu, W. Du, P. Zhou, X. Xu, L. Si, Z. Liu, and Y. Zhao, Opt. Lett. 36, 951 (2011).
[CrossRef]

P. Zhou, Z. Liu, X. Wang, Y. Ma, H. Ma, X. Xu, and S. Guo, IEEE J. Sel. Top. Quantum Electron. 15, 248 (2009).
[CrossRef]

P. Zhou, Z. Liu, X. Wang, Y. Ma, H. Ma, and X. Xu, Appl. Phys. Lett. 94, 231106 (2009).
[CrossRef]

Ma, Y. X.

X. L. Wang, P. Zhou, Y. X. Ma, H. T. Ma, X. J. Xu, Z. J. Liu, and Y. J. Zhao, Laser Phys. 20, 1453 (2010).
[CrossRef]

McComb, T.

McComb, T. S.

McNaught, S. J.

Mies, E.

Minden, M.

Mottay, E.

Murphy, D. V.

Nelson, L. D. J.

Palese, S.

Peng, M.

Pilkington, S. D.

Qi, Y.

Qian, Q.

Qiu, J.

Redmond, S. M.

Rothenberg, J. E.

Sanchez, A.

Sanchez, A. D.

Seise, E.

Shay, T. M.

Shen, S.

Shih, C.

Si, L.

Spring, L. J.

Su, R.

Su, Z.

Thielen, P. A.

Tünermann, A.

Vasseur, O.

Vorontsov, M. A.

Wang, B.

Wang, X.

R. Su, P. Zhou, X. Wang, Y. Ma, and X. Xu, Opt. Lett. 37, 497 (2012).
[CrossRef]

Y. Ma, X. Wang, J. Leng, H. Xiao, X. Dong, J. Zhu, W. Du, P. Zhou, X. Xu, L. Si, Z. Liu, and Y. Zhao, Opt. Lett. 36, 951 (2011).
[CrossRef]

P. Zhou, Z. Liu, X. Wang, Y. Ma, H. Ma, and X. Xu, Appl. Phys. Lett. 94, 231106 (2009).
[CrossRef]

P. Zhou, Z. Liu, X. Wang, Y. Ma, H. Ma, X. Xu, and S. Guo, IEEE J. Sel. Top. Quantum Electron. 15, 248 (2009).
[CrossRef]

Wang, X. L.

X. L. Wang, P. Zhou, Y. X. Ma, H. T. Ma, X. J. Xu, Z. J. Liu, and Y. J. Zhao, Laser Phys. 20, 1453 (2010).
[CrossRef]

Ward, C. B.

Weber, M.

Weber, M. E.

Wei, X.

Wei, Y.

Weyrauch, T.

Wickham, M. G.

Xiao, H.

Xu, S.

Xu, X.

R. Su, P. Zhou, X. Wang, Y. Ma, and X. Xu, Opt. Lett. 37, 497 (2012).
[CrossRef]

Y. Ma, X. Wang, J. Leng, H. Xiao, X. Dong, J. Zhu, W. Du, P. Zhou, X. Xu, L. Si, Z. Liu, and Y. Zhao, Opt. Lett. 36, 951 (2011).
[CrossRef]

P. Zhou, Z. Liu, X. Wang, Y. Ma, H. Ma, and X. Xu, Appl. Phys. Lett. 94, 231106 (2009).
[CrossRef]

P. Zhou, Z. Liu, X. Wang, Y. Ma, H. Ma, X. Xu, and S. Guo, IEEE J. Sel. Top. Quantum Electron. 15, 248 (2009).
[CrossRef]

Xu, X. J.

X. L. Wang, P. Zhou, Y. X. Ma, H. T. Ma, X. J. Xu, Z. J. Liu, and Y. J. Zhao, Laser Phys. 20, 1453 (2010).
[CrossRef]

Xue, D.

Yang, Z.

Yu, C. X.

Zaouter, Y.

Zhang, F.

Zhang, Q.

Zhang, W.

Zhao, Y.

Zhao, Y. J.

X. L. Wang, P. Zhou, Y. X. Ma, H. T. Ma, X. J. Xu, Z. J. Liu, and Y. J. Zhao, Laser Phys. 20, 1453 (2010).
[CrossRef]

Zhou, J.

Zhou, P.

R. Su, P. Zhou, X. Wang, Y. Ma, and X. Xu, Opt. Lett. 37, 497 (2012).
[CrossRef]

Y. Ma, X. Wang, J. Leng, H. Xiao, X. Dong, J. Zhu, W. Du, P. Zhou, X. Xu, L. Si, Z. Liu, and Y. Zhao, Opt. Lett. 36, 951 (2011).
[CrossRef]

X. L. Wang, P. Zhou, Y. X. Ma, H. T. Ma, X. J. Xu, Z. J. Liu, and Y. J. Zhao, Laser Phys. 20, 1453 (2010).
[CrossRef]

P. Zhou, Z. Liu, X. Wang, Y. Ma, H. Ma, X. Xu, and S. Guo, IEEE J. Sel. Top. Quantum Electron. 15, 248 (2009).
[CrossRef]

P. Zhou, Z. Liu, X. Wang, Y. Ma, H. Ma, and X. Xu, Appl. Phys. Lett. 94, 231106 (2009).
[CrossRef]

Zhu, J.

Appl. Phys. Lett. (2)

P. Zhou, Z. Liu, X. Wang, Y. Ma, H. Ma, and X. Xu, Appl. Phys. Lett. 94, 231106 (2009).
[CrossRef]

C. J. Corcoarn and F. Durville, Appl. Phys. Lett. 86, 201118 (2005).
[CrossRef]

IEEE J. Sel. Top. Quantum Electron. (1)

P. Zhou, Z. Liu, X. Wang, Y. Ma, H. Ma, X. Xu, and S. Guo, IEEE J. Sel. Top. Quantum Electron. 15, 248 (2009).
[CrossRef]

J. Opt. Soc. Am. A (1)

Laser Phys. (1)

X. L. Wang, P. Zhou, Y. X. Ma, H. T. Ma, X. J. Xu, Z. J. Liu, and Y. J. Zhao, Laser Phys. 20, 1453 (2010).
[CrossRef]

Opt. Express (3)

Opt. Lett. (9)

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Figures (5)

Fig. 1.
Fig. 1.

Experimental setup of CBC of five pulsed fiber amplifiers. EOM, electro-optic modulator; AFG, arbitrary function generator; P-M, LiNbO3 phase modulator; OC, collimator; BC, beam combiner; PD, photoelectric detector; LPF, low-pass filter; and FPGA, field programmable gate array.

Fig. 2.
Fig. 2.

Spectrum of the pulse seed (blue) and combined pulsed laser with different output powers.

Fig. 3.
Fig. 3.

Measured pulse shapes. (a) Pulse shapes of a single channel and combined beam in one cycle and (b) pulse shape of combined beam in 19 cycles.

Fig. 4.
Fig. 4.

Normalized cost function in an open loop and a closed loop.

Fig. 5.
Fig. 5.

Normalized far-field long-exposure intensity pattern of the combined beam in (a) an open loop, (b) a closed loop, and (c) the far-field intensity pattern of a single amplifier.

Equations (1)

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Ppeak=2ln2/πPave/tFWHMfRR,

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