Abstract

We demonstrate coherent beam combining using a two-dimensionally patterned diffractive optic combining element. Fifteen Yb-doped fiber amplifier beams arranged in a 3×5 array were combined into a single 600 W, M2=1.1 output beam with 68% combining efficiency. Combining losses under thermally stable conditions at 485 W were found to be dominated by spatial mode-mismatch between the free space input beams, in quantitative agreement with calculations using the measured amplitude and phase profiles of the input beams.

© 2012 Optical Society of America

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2012 (2)

2011 (1)

2010 (2)

J. E. Rothenberg and G. D. Goodno, Proc. SPIE 7686, 768613 (2010).
[CrossRef]

G. D. Goodno, C. C. Shih, and J. E. Rothenberg, Opt. Express 18, 25403 (2010).
[CrossRef]

2009 (1)

P. Madasamy, D. Jander, C. Brooks, T. Loftus, A. Thomas, P. Jones, and E. Honea, IEEE J. Sel. Top. Quantum Electron. 15, 337 (2009).
[CrossRef]

2008 (1)

2006 (1)

2005 (1)

T. Y. Fan, IEEE J. Sel. Top. Quantum Electron. 11, 567 (2005).
[CrossRef]

1996 (1)

J. A. Britten, M. D. Perry, B. W. Shore, R. D. Boyd, G. E. Loomis, and R. Chow, Proc. SPIE 2714, 511 (1996).
[CrossRef]

1987 (1)

Augst, S. J.

S. M. Redmond, D. J. Ripin, C. X. Yu, S. J. Augst, T. Y. Fan, P. A. Thielen, J. E. Rothenberg, and G. D. Goodno, Opt. Lett. 37, 2832 (2012).
[CrossRef]

S. J. Augst, R. C. Lawrence, T. Y. Fan, D. V. Murphy, and A. Sanchez, in Frontiers in Optics (OSA Technical Digest, 2008), paper FWG2.

Boyd, R. D.

J. A. Britten, M. D. Perry, B. W. Shore, R. D. Boyd, G. E. Loomis, and R. Chow, Proc. SPIE 2714, 511 (1996).
[CrossRef]

Britten, J. A.

J. A. Britten, M. D. Perry, B. W. Shore, R. D. Boyd, G. E. Loomis, and R. Chow, Proc. SPIE 2714, 511 (1996).
[CrossRef]

Brooks, C.

P. Madasamy, D. Jander, C. Brooks, T. Loftus, A. Thomas, P. Jones, and E. Honea, IEEE J. Sel. Top. Quantum Electron. 15, 337 (2009).
[CrossRef]

Cheung, E. C.

Chow, R.

J. A. Britten, M. D. Perry, B. W. Shore, R. D. Boyd, G. E. Loomis, and R. Chow, Proc. SPIE 2714, 511 (1996).
[CrossRef]

Eberhardt, R.

Fan, T. Y.

S. M. Redmond, D. J. Ripin, C. X. Yu, S. J. Augst, T. Y. Fan, P. A. Thielen, J. E. Rothenberg, and G. D. Goodno, Opt. Lett. 37, 2832 (2012).
[CrossRef]

T. Y. Fan, IEEE J. Sel. Top. Quantum Electron. 11, 567 (2005).
[CrossRef]

S. J. Augst, R. C. Lawrence, T. Y. Fan, D. V. Murphy, and A. Sanchez, in Frontiers in Optics (OSA Technical Digest, 2008), paper FWG2.

Goodno, G. D.

Gowin, M.

Ho, J. G.

Honea, E.

P. Madasamy, D. Jander, C. Brooks, T. Loftus, A. Thomas, P. Jones, and E. Honea, IEEE J. Sel. Top. Quantum Electron. 15, 337 (2009).
[CrossRef]

Jander, D.

P. Madasamy, D. Jander, C. Brooks, T. Loftus, A. Thomas, P. Jones, and E. Honea, IEEE J. Sel. Top. Quantum Electron. 15, 337 (2009).
[CrossRef]

Jones, P.

P. Madasamy, D. Jander, C. Brooks, T. Loftus, A. Thomas, P. Jones, and E. Honea, IEEE J. Sel. Top. Quantum Electron. 15, 337 (2009).
[CrossRef]

Jung, M.

Lawrence, R. C.

S. J. Augst, R. C. Lawrence, T. Y. Fan, D. V. Murphy, and A. Sanchez, in Frontiers in Optics (OSA Technical Digest, 2008), paper FWG2.

Leger, J. R.

Limpert, J.

Loftus, T.

P. Madasamy, D. Jander, C. Brooks, T. Loftus, A. Thomas, P. Jones, and E. Honea, IEEE J. Sel. Top. Quantum Electron. 15, 337 (2009).
[CrossRef]

Loomis, G. E.

J. A. Britten, M. D. Perry, B. W. Shore, R. D. Boyd, G. E. Loomis, and R. Chow, Proc. SPIE 2714, 511 (1996).
[CrossRef]

Ludewigt, K.

Madasamy, P.

P. Madasamy, D. Jander, C. Brooks, T. Loftus, A. Thomas, P. Jones, and E. Honea, IEEE J. Sel. Top. Quantum Electron. 15, 337 (2009).
[CrossRef]

Murphy, D. V.

S. J. Augst, R. C. Lawrence, T. Y. Fan, D. V. Murphy, and A. Sanchez, in Frontiers in Optics (OSA Technical Digest, 2008), paper FWG2.

Perry, M. D.

J. A. Britten, M. D. Perry, B. W. Shore, R. D. Boyd, G. E. Loomis, and R. Chow, Proc. SPIE 2714, 511 (1996).
[CrossRef]

Redmond, S. M.

Rice, R. R.

Ripin, D. J.

Rothenberg, J.

Rothenberg, J. E.

Sanchez, A.

S. J. Augst, R. C. Lawrence, T. Y. Fan, D. V. Murphy, and A. Sanchez, in Frontiers in Optics (OSA Technical Digest, 2008), paper FWG2.

Schmidt, O.

Schreiber, T.

Shay, T. M.

Shih, C. C.

Shore, B. W.

J. A. Britten, M. D. Perry, B. W. Shore, R. D. Boyd, G. E. Loomis, and R. Chow, Proc. SPIE 2714, 511 (1996).
[CrossRef]

Swanson, G. J.

ten Have, E.

Thielen, P.

Thielen, P. A.

Thomas, A.

P. Madasamy, D. Jander, C. Brooks, T. Loftus, A. Thomas, P. Jones, and E. Honea, IEEE J. Sel. Top. Quantum Electron. 15, 337 (2009).
[CrossRef]

Tsybin, I.

Tünnermann, A.

Veldkamp, W. B.

Wagner, T. J.

T. J. Wagner, Proc. SPIE 8237, 823718 (2012).
[CrossRef]

Weber, M.

Wickham, M.

Wirth, C.

Yu, C. X.

Appl. Opt. (1)

IEEE J. Sel. Top. Quantum Electron. (2)

T. Y. Fan, IEEE J. Sel. Top. Quantum Electron. 11, 567 (2005).
[CrossRef]

P. Madasamy, D. Jander, C. Brooks, T. Loftus, A. Thomas, P. Jones, and E. Honea, IEEE J. Sel. Top. Quantum Electron. 15, 337 (2009).
[CrossRef]

Opt. Express (2)

Opt. Lett. (3)

Proc. SPIE (3)

J. E. Rothenberg and G. D. Goodno, Proc. SPIE 7686, 768613 (2010).
[CrossRef]

T. J. Wagner, Proc. SPIE 8237, 823718 (2012).
[CrossRef]

J. A. Britten, M. D. Perry, B. W. Shore, R. D. Boyd, G. E. Loomis, and R. Chow, Proc. SPIE 2714, 511 (1996).
[CrossRef]

Other (1)

S. J. Augst, R. C. Lawrence, T. Y. Fan, D. V. Murphy, and A. Sanchez, in Frontiers in Optics (OSA Technical Digest, 2008), paper FWG2.

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Figures (3)

Fig. 1.
Fig. 1.

(a) Fourier optical configuration for SBC or CBC; (b) Typical surface profile for SBC diffraction gratings, with near-unity aspect ratio; (c) Typical surface profile for CBC DOE (25-beam DOE design shown to scale), with 3° maximum surface slope.

Fig. 2.
Fig. 2.

Optical layout of the 3×5 DOE beam combiner showing the high power beam paths. Inset: 2-D diffractive beam pattern measured with the DOE used as a splitter.

Fig. 3.
Fig. 3.

Near-field and far-field intensity distributions of the combined beam.

Tables (2)

Tables Icon

Table 1. 3×5 2-D DOE Combining Results and Analysis

Tables Icon

Table 2. Contributions to ηMN at 684 W Input Power

Equations (2)

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ηN=N1(n=1NDn)2.
ηMN=|n,mDm,nIm,n(x,y)eiϕm,n(x,y)+iΔφm,n|2dxdyn,mIm,n(x,y)dxdy,

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