Abstract

We propose and demonstrate an architecture that achieves passive coherent combination of two femtosecond fiber chirped-pulse amplifiers. The setup consists in the use of a well-balanced amplifying Sagnac interferometer. The experiment shows that the temporal, spectral, and spatial qualities of each beam are retained, with the generation of 250fs pulses at 35MHz repetition rate, an uncompressed average power of 10W, and a combining efficiency of 96%. The behavior of this architecture in the presence of high accumulated nonlinear phase is investigated.

© 2011 Optical Society of America

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References

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2011 (3)

2010 (1)

2009 (1)

2008 (1)

2007 (2)

T. Shay, V. Benham, J. T. Baker, A. D. Sanchez, D. Pilkington, and C. A. Lu, IEEE J. Sel. Top. Quantum Electron. 13, 480 (2007).
[CrossRef]

F. Röser, T. Eidam, J. Rothhardt, O. Schmidt, D. N. Schimpf, J. Limpert, and A. Tünnermann, Opt. Lett. 32, 3495 (2007).
[CrossRef] [PubMed]

1988 (1)

Azarian, A.

Baker, J. T.

T. Shay, V. Benham, J. T. Baker, A. D. Sanchez, D. Pilkington, and C. A. Lu, IEEE J. Sel. Top. Quantum Electron. 13, 480 (2007).
[CrossRef]

Benham, V.

T. Shay, V. Benham, J. T. Baker, A. D. Sanchez, D. Pilkington, and C. A. Lu, IEEE J. Sel. Top. Quantum Electron. 13, 480 (2007).
[CrossRef]

Boullet, J.

Bourdon, P.

Breitkopf, S.

Cadoret, K.

Canat, G.

Cormier, E.

Daniault, L.

Doran, N. J.

Druon, F.

Eidam, T.

Georges, P.

Goular, D.

Hanna, M.

Jaouën, Y.

Jiang, S.

Jolivet, V.

Klenke, A.

Limpert, J.

Lombard, L.

Lu, C. A.

T. Shay, V. Benham, J. T. Baker, A. D. Sanchez, D. Pilkington, and C. A. Lu, IEEE J. Sel. Top. Quantum Electron. 13, 480 (2007).
[CrossRef]

Mies, E.

Minden, M.

Mottay, E.

Pilkington, D.

T. Shay, V. Benham, J. T. Baker, A. D. Sanchez, D. Pilkington, and C. A. Lu, IEEE J. Sel. Top. Quantum Electron. 13, 480 (2007).
[CrossRef]

Plötner, M.

Röser, F.

Rothhardt, J.

Sanchez, A.

Sanchez, A. D.

T. Shay, V. Benham, J. T. Baker, A. D. Sanchez, D. Pilkington, and C. A. Lu, IEEE J. Sel. Top. Quantum Electron. 13, 480 (2007).
[CrossRef]

Schimpf, D. N.

Schmidt, O.

Seise, E.

Shay, T.

T. Shay, V. Benham, J. T. Baker, A. D. Sanchez, D. Pilkington, and C. A. Lu, IEEE J. Sel. Top. Quantum Electron. 13, 480 (2007).
[CrossRef]

Tünnermann, A.

Vasseur, O.

Wang, B.

Wood, D.

Zaouter, Y.

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Figures (5)

Fig. 1
Fig. 1

Experimental setup. AOM, acousto-optic modulator; PBS, polarizing beam splitter.

Fig. 2
Fig. 2

Autocorrelation power (top) and optical spectrum (bottom) of 10 W at 35 MHz (solid blue) and 10 W at 1 MHz (dashed red) pulses.

Fig. 3
Fig. 3

Combining efficiency as a function of pulse energy at 1 MHz (red dots) and 35 MHz (black squares) repetition rates.

Fig. 4
Fig. 4

Autocorrelation for the standard two-stage architecture (solid blue) and the Sagnac architecture (dash red).

Fig. 5
Fig. 5

Beam profiles and M 2 of one isolated channel (left), the second one (middle), and the combined beam (right).

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