Abstract

Five 500 W fiber amplifiers were coherently combined using a diffractive optical element combiner, generating a 1.93 kW beam whose M2=1.1 beam quality exceeded that of the inputs. Combining efficiency near 90% at low powers degraded to 79% at full power owing to thermal expansion of the fiber tip array.

© 2012 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. C. X. Yu and T. Y. Fan, in High Power Laser Handbook, H. Injeyan and G. D. Goodno, eds. (McGraw-Hill, 2011), pp. 533–566.
  2. S. McNaught, C. Asman, H. Injeyan, A. Jankevics, A. Johnson, G. Jones, H. Komine, J. Machan, J. Marmo, M. McClellan, R. Simpson, J. Sollee, M. Valley, M. Weber, and S. Weiss, in Proceedings of Frontiers in Optics (Optical Society of America, 2009), paper FThD2.
  3. C. X. Yu, S. J. Augst, S. M. Redmond, K. C. Goldizen, D. V. Murphy, A. Sanchez-Rubio, and T. Y. Fan, Opt. Lett. 36, 2686 (2011).
    [CrossRef]
  4. J. R. Leger, G. J. Swanson, and W. B. Veldkamp, Appl. Phys. Lett. 48, 888 (1986).
    [CrossRef]
  5. E. C. Cheung, J. G. Ho, G. D. Goodno, R. R. Rice, J. Rothenberg, P. Thielen, M. Weber, and M. Wickham, Opt. Lett. 33, 354 (2008).
    [CrossRef]
  6. G. D. Goodno, C. C. Shih, and J. E. Rothenberg, Opt. Express 18, 25403 (2010).
    [CrossRef]
  7. http://mathworld.wolfram.com/UniformDistribution.html , accessed May10, 2012.
  8. G. D. Goodno, S. J. McNaught, J. E. Rothenberg, T. S. McComb, P. A. Thielen, M. G. Wickham, and M. E. Weber, Opt. Lett. 35, 1542 (2010).
    [CrossRef]

2011 (1)

2010 (2)

2008 (1)

1986 (1)

J. R. Leger, G. J. Swanson, and W. B. Veldkamp, Appl. Phys. Lett. 48, 888 (1986).
[CrossRef]

Asman, C.

S. McNaught, C. Asman, H. Injeyan, A. Jankevics, A. Johnson, G. Jones, H. Komine, J. Machan, J. Marmo, M. McClellan, R. Simpson, J. Sollee, M. Valley, M. Weber, and S. Weiss, in Proceedings of Frontiers in Optics (Optical Society of America, 2009), paper FThD2.

Augst, S. J.

Cheung, E. C.

Fan, T. Y.

C. X. Yu, S. J. Augst, S. M. Redmond, K. C. Goldizen, D. V. Murphy, A. Sanchez-Rubio, and T. Y. Fan, Opt. Lett. 36, 2686 (2011).
[CrossRef]

C. X. Yu and T. Y. Fan, in High Power Laser Handbook, H. Injeyan and G. D. Goodno, eds. (McGraw-Hill, 2011), pp. 533–566.

Goldizen, K. C.

Goodno, G. D.

Ho, J. G.

Injeyan, H.

S. McNaught, C. Asman, H. Injeyan, A. Jankevics, A. Johnson, G. Jones, H. Komine, J. Machan, J. Marmo, M. McClellan, R. Simpson, J. Sollee, M. Valley, M. Weber, and S. Weiss, in Proceedings of Frontiers in Optics (Optical Society of America, 2009), paper FThD2.

Jankevics, A.

S. McNaught, C. Asman, H. Injeyan, A. Jankevics, A. Johnson, G. Jones, H. Komine, J. Machan, J. Marmo, M. McClellan, R. Simpson, J. Sollee, M. Valley, M. Weber, and S. Weiss, in Proceedings of Frontiers in Optics (Optical Society of America, 2009), paper FThD2.

Johnson, A.

S. McNaught, C. Asman, H. Injeyan, A. Jankevics, A. Johnson, G. Jones, H. Komine, J. Machan, J. Marmo, M. McClellan, R. Simpson, J. Sollee, M. Valley, M. Weber, and S. Weiss, in Proceedings of Frontiers in Optics (Optical Society of America, 2009), paper FThD2.

Jones, G.

S. McNaught, C. Asman, H. Injeyan, A. Jankevics, A. Johnson, G. Jones, H. Komine, J. Machan, J. Marmo, M. McClellan, R. Simpson, J. Sollee, M. Valley, M. Weber, and S. Weiss, in Proceedings of Frontiers in Optics (Optical Society of America, 2009), paper FThD2.

Komine, H.

S. McNaught, C. Asman, H. Injeyan, A. Jankevics, A. Johnson, G. Jones, H. Komine, J. Machan, J. Marmo, M. McClellan, R. Simpson, J. Sollee, M. Valley, M. Weber, and S. Weiss, in Proceedings of Frontiers in Optics (Optical Society of America, 2009), paper FThD2.

Leger, J. R.

J. R. Leger, G. J. Swanson, and W. B. Veldkamp, Appl. Phys. Lett. 48, 888 (1986).
[CrossRef]

Machan, J.

S. McNaught, C. Asman, H. Injeyan, A. Jankevics, A. Johnson, G. Jones, H. Komine, J. Machan, J. Marmo, M. McClellan, R. Simpson, J. Sollee, M. Valley, M. Weber, and S. Weiss, in Proceedings of Frontiers in Optics (Optical Society of America, 2009), paper FThD2.

Marmo, J.

S. McNaught, C. Asman, H. Injeyan, A. Jankevics, A. Johnson, G. Jones, H. Komine, J. Machan, J. Marmo, M. McClellan, R. Simpson, J. Sollee, M. Valley, M. Weber, and S. Weiss, in Proceedings of Frontiers in Optics (Optical Society of America, 2009), paper FThD2.

McClellan, M.

S. McNaught, C. Asman, H. Injeyan, A. Jankevics, A. Johnson, G. Jones, H. Komine, J. Machan, J. Marmo, M. McClellan, R. Simpson, J. Sollee, M. Valley, M. Weber, and S. Weiss, in Proceedings of Frontiers in Optics (Optical Society of America, 2009), paper FThD2.

McComb, T. S.

McNaught, S.

S. McNaught, C. Asman, H. Injeyan, A. Jankevics, A. Johnson, G. Jones, H. Komine, J. Machan, J. Marmo, M. McClellan, R. Simpson, J. Sollee, M. Valley, M. Weber, and S. Weiss, in Proceedings of Frontiers in Optics (Optical Society of America, 2009), paper FThD2.

McNaught, S. J.

Murphy, D. V.

Redmond, S. M.

Rice, R. R.

Rothenberg, J.

Rothenberg, J. E.

Sanchez-Rubio, A.

Shih, C. C.

Simpson, R.

S. McNaught, C. Asman, H. Injeyan, A. Jankevics, A. Johnson, G. Jones, H. Komine, J. Machan, J. Marmo, M. McClellan, R. Simpson, J. Sollee, M. Valley, M. Weber, and S. Weiss, in Proceedings of Frontiers in Optics (Optical Society of America, 2009), paper FThD2.

Sollee, J.

S. McNaught, C. Asman, H. Injeyan, A. Jankevics, A. Johnson, G. Jones, H. Komine, J. Machan, J. Marmo, M. McClellan, R. Simpson, J. Sollee, M. Valley, M. Weber, and S. Weiss, in Proceedings of Frontiers in Optics (Optical Society of America, 2009), paper FThD2.

Swanson, G. J.

J. R. Leger, G. J. Swanson, and W. B. Veldkamp, Appl. Phys. Lett. 48, 888 (1986).
[CrossRef]

Thielen, P.

Thielen, P. A.

Valley, M.

S. McNaught, C. Asman, H. Injeyan, A. Jankevics, A. Johnson, G. Jones, H. Komine, J. Machan, J. Marmo, M. McClellan, R. Simpson, J. Sollee, M. Valley, M. Weber, and S. Weiss, in Proceedings of Frontiers in Optics (Optical Society of America, 2009), paper FThD2.

Veldkamp, W. B.

J. R. Leger, G. J. Swanson, and W. B. Veldkamp, Appl. Phys. Lett. 48, 888 (1986).
[CrossRef]

Weber, M.

E. C. Cheung, J. G. Ho, G. D. Goodno, R. R. Rice, J. Rothenberg, P. Thielen, M. Weber, and M. Wickham, Opt. Lett. 33, 354 (2008).
[CrossRef]

S. McNaught, C. Asman, H. Injeyan, A. Jankevics, A. Johnson, G. Jones, H. Komine, J. Machan, J. Marmo, M. McClellan, R. Simpson, J. Sollee, M. Valley, M. Weber, and S. Weiss, in Proceedings of Frontiers in Optics (Optical Society of America, 2009), paper FThD2.

Weber, M. E.

Weiss, S.

S. McNaught, C. Asman, H. Injeyan, A. Jankevics, A. Johnson, G. Jones, H. Komine, J. Machan, J. Marmo, M. McClellan, R. Simpson, J. Sollee, M. Valley, M. Weber, and S. Weiss, in Proceedings of Frontiers in Optics (Optical Society of America, 2009), paper FThD2.

Wickham, M.

Wickham, M. G.

Yu, C. X.

C. X. Yu, S. J. Augst, S. M. Redmond, K. C. Goldizen, D. V. Murphy, A. Sanchez-Rubio, and T. Y. Fan, Opt. Lett. 36, 2686 (2011).
[CrossRef]

C. X. Yu and T. Y. Fan, in High Power Laser Handbook, H. Injeyan and G. D. Goodno, eds. (McGraw-Hill, 2011), pp. 533–566.

Appl. Phys. Lett. (1)

J. R. Leger, G. J. Swanson, and W. B. Veldkamp, Appl. Phys. Lett. 48, 888 (1986).
[CrossRef]

Opt. Express (1)

Opt. Lett. (3)

Other (3)

http://mathworld.wolfram.com/UniformDistribution.html , accessed May10, 2012.

C. X. Yu and T. Y. Fan, in High Power Laser Handbook, H. Injeyan and G. D. Goodno, eds. (McGraw-Hill, 2011), pp. 533–566.

S. McNaught, C. Asman, H. Injeyan, A. Jankevics, A. Johnson, G. Jones, H. Komine, J. Machan, J. Marmo, M. McClellan, R. Simpson, J. Sollee, M. Valley, M. Weber, and S. Weiss, in Proceedings of Frontiers in Optics (Optical Society of America, 2009), paper FThD2.

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (6)

Fig. 1.
Fig. 1.

Optical schematic of the DOE fiber beam combiner. PM, power meter.

Fig. 2.
Fig. 2.

Combined m=0 output power and efficiency. The dashed curves show a linear fit to 90% CBC efficiency, and calculated efficiency from Eq (2).

Fig. 3.
Fig. 3.

Comparison of average M2 of the 5 input beams to the M2 of the output beam.

Fig. 4.
Fig. 4.

Steady state thermal images of optical components under 2.5 kW illumination. (a) DOE exhibits <3°C temperature rise; (b) top view of the silicon exit array, with 45°C rise at the fiber-to-end-cap interface.

Fig. 5.
Fig. 5.

Face view of the V-groove exit array.

Fig. 6.
Fig. 6.

(a) Illustration of wavefront tilt errors of the m=0 output beam at the near-field DOE plane due to thermal expansion of the exit array, (b) measured and modeled near-field intensity profiles at the DOE.

Equations (2)

Equations on this page are rendered with MathJax. Learn more.

σx=N2112δx.
η(P)=η0(1L)=η0[1N2112(αtwdTdP)2P2],

Metrics