Abstract

We report on a compact double-stage ytterbium-doped-fiber chirped-pulse amplifier system delivering high temporal quality 270fs pulses of 100μJ energy at a repetition rate of 300kHz resulting in a peak power of 340MW. The recompression down to 1.1 times the Fourier limit is based on the exploitation of nonlinear phase shifts associated with mismatched stretcher–compressor units. A 1-m-long ytterbium-doped 80μm core diameter photonic crystal fiber is implemented as the power amplifier and allows the production of 143μJ pulses before compression with an accumulated B integral of 17rad throughout the amplification stages.

© 2008 Optical Society of America

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References

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2007 (3)

2006 (1)

2005 (2)

1995 (1)

1993 (2)

P. Tournois, Electron. Lett. 29, 1414 (1993).
[CrossRef]

D. J. Kane and R. Tebino, IEEE J. Quantum Electron. 29, 571 (1993).
[CrossRef]

Caplen, J. E.

Chen, Z. J.

Cho, G. C.

Chong, A.

Eidam, T.

Fermann, M.

Fermann, M. E.

Galvanauskas, A.

Harter, D.

Hartl, I.

Imeshev, G.

Kane, D. J.

D. J. Kane and R. Tebino, IEEE J. Quantum Electron. 29, 571 (1993).
[CrossRef]

Kuznetsova, L.

Limpert, J.

Liu, Z.

Minelly, J. D.

Ortaç, B.

Payne, D. N.

Rademaker, K.

Röser, F.

Rothhardt, J.

Schimpf, D.

Schimpf, D. N.

Schmidt, O.

Shah, L.

Tebino, R.

D. J. Kane and R. Tebino, IEEE J. Quantum Electron. 29, 571 (1993).
[CrossRef]

Tournois, P.

P. Tournois, Electron. Lett. 29, 1414 (1993).
[CrossRef]

Tünnermann, A.

Wise, F.

Zhou, S.

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Figures (4)

Fig. 1
Fig. 1

Experimental setup of the FCPA system.

Fig. 2
Fig. 2

Output characteristics of the FCPA before (triangle) and after (square) compression at 300 kHz . Inset, measured compressed pulse duration as a function of output pulse energy.

Fig. 3
Fig. 3

Retrieved temporal profiles from SHG FROG measurements of the pulses of the oscillator (dotted curve), the amplified pulses at 100 μ J and 300 kHz (solid curve), and the corresponding transform-limited pulses assuming a flat spectral phase (dashed curve). The FROG trace (error is 17 × 10 4 on 512 × 512 grids) and a 5 ps (top right) and a 50 ps (bottom right) scan range autocorrelations of the pulses at 100 μ J energy are also displayed in the insets.

Fig. 4
Fig. 4

Spectrum of the 100 μ J pulses in logarithmic scale. Inset, spectra of the pulse train after the fiber stretcher (dashed curve), after the preamplifier at 300 kHz (dotted curve), and after the compressor unit (solid curve).

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