Abstract

We experimentally investigate the impact of spectral phase mismatch on the coherent beam combining of two femtosecond fiber chirped-pulse amplifiers. By measuring the differential spectral phase, both linear and nonlinear contributions are identified. An accumulated nonlinear phase as high as 6 rad has been measured, for which a combination efficiency of 91% can be obtained by symmetrizing the pump and injection powers. This also allows us to quantitatively separate the spatial and temporal contributions of the nonperfect combining efficiency.

© 2012 Optical Society of America

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References

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  1. E. Seise, A. Klenke, J. Limpert, and A. Tünnermann, Opt. Express 18, 27827 (2010).
    [Crossref]
  2. E. Seise, A. Klenke, S. Breitkopf, J. Limpert, and A. Tünnermann, Opt. Lett. 36, 3858 (2011).
    [Crossref]
  3. L. Daniault, M. Hanna, L. Lombard, Y. Zaouter, E. Mottay, D. Goular, P. Bourdon, F. Druon, and P. Georges, Opt. Lett. 36, 621 (2011).
    [Crossref]
  4. L. Daniault, M. Hanna, D. N. Papadopoulos, Y. Zaouter, E. Mottay, F. Druon, and P. Georges, Opt. Lett. 36, 4023 (2011).
    [Crossref]
  5. S. J. Augst, J. K. Ranka, T. Y. Fan, and A. Sanchez, J. Opt. Soc. Am. B 24, 1707 (2007).
    [Crossref]
  6. L. Lombard, A. Azarian, K. Cadoret, P. Bourdon, D. Goular, G. Canat, V. Jolivet, Y. Jaouën, and O. Vasseur, Opt. Lett. 36, 523 (2011).
    [Crossref]
  7. A. Galvanauskas, Ultrafast Lasers (CRC Press, 2002), pp. 209–271.
  8. S. Jiang, M. Hanna, F. Druon, and P. Georges, Opt. Lett. 35, 1293 (2010).
    [Crossref]

2011 (4)

2010 (2)

2007 (1)

Augst, S. J.

Azarian, A.

Bourdon, P.

Breitkopf, S.

Cadoret, K.

Canat, G.

Daniault, L.

Druon, F.

Fan, T. Y.

Galvanauskas, A.

A. Galvanauskas, Ultrafast Lasers (CRC Press, 2002), pp. 209–271.

Georges, P.

Goular, D.

Hanna, M.

Jaouën, Y.

Jiang, S.

Jolivet, V.

Klenke, A.

Limpert, J.

Lombard, L.

Mottay, E.

Papadopoulos, D. N.

Ranka, J. K.

Sanchez, A.

Seise, E.

Tünnermann, A.

Vasseur, O.

Zaouter, Y.

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Figures (3)

Fig. 1.
Fig. 1.

Experimental setup.

Fig. 2.
Fig. 2.

Autocorrelation of channels 1, 2, and combined beam (left); spectrum of the combined beam and relative spectral phase between the two initial channels (right).

Fig. 3.
Fig. 3.

Autocorrelation of channels 1, 2, and combined beam (top); spectrum of the combined beam and relative spectral phase between the two initial channels (bottom); Left, unmatched case; right, balanced SPM effects.

Equations (2)

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I(ω)=I1(ω)+I2(ω)+2I1(ω)I2(ω)cos(Δφ(ω)),
φ(ω)=φ0+φ1ω+φ2ω2+ΔBIN(ω),

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