Abstract

We demonstrate generation of pulses with up to 4μJ energy at 1MHz repetition rate through nonlinear chirped-pulse amplification in an entirely fiber-integrated amplifier, seeded by a fiber oscillator. The peak power and the estimated nonlinear phase shift of the amplified pulses are as much as 57kW and 22π, respectively. The shortest compressed pulse duration of 140fs is obtained for 3.1μJ of uncompressed amplifier output energy at 18π of nonlinear phase shift. At 4μJ of energy, the nonlinear phase shift is 22π and compression leads to 170-fs-long pulses. Numerical simulations are utilized to model the experiments and identify the limitations. Amplification is ultimately limited by the onset of Raman amplification of the longer edge of the spectrum with an uncompressible phase profile.

© 2010 Optical Society of America

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References

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2009 (2)

S. Hädrich, J. Rothhardt, T. Eidam, J. Limpert, and A. Tünnermann, Opt. Express 17, 3913 (2009).
[CrossRef] [PubMed]

P. K. Mukhopadhyay, K. Özgören, I. L. Budunoglu, and F. Ö. Ilday, IEEE J. Sel. Top. Quant. 15, 145 (2009).
[CrossRef]

2008 (1)

2007 (3)

2005 (2)

2003 (1)

2002 (1)

1999 (1)

1996 (1)

Agrawal, G. P.

Boullet, J.

Buckley, J. R.

Budunoglu, I. L.

P. K. Mukhopadhyay, K. Özgören, I. L. Budunoglu, and F. Ö. Ilday, IEEE J. Sel. Top. Quant. 15, 145 (2009).
[CrossRef]

Cho, G. C.

Chong, A.

Clark, W. G.

Cormier, E.

Eidam, T.

Fermann, M. E.

Hädrich, S.

Hartl, I.

Headley, C.

Ilday, F. O.

Ilday, F. Ö.

P. K. Mukhopadhyay, K. Özgören, I. L. Budunoglu, and F. Ö. Ilday, IEEE J. Sel. Top. Quant. 15, 145 (2009).
[CrossRef]

F. Ö. Ilday and F. W. Wise, J. Opt. Soc. Am. B 19, 470 (2002).
[CrossRef]

Imeshev, G.

Jasapara, J.

Kuznetsova, L.

Lim, H.

Limpert, J.

Liu, Z.

Mottay, E.

Mukhopadhyay, P. K.

P. K. Mukhopadhyay, K. Özgören, I. L. Budunoglu, and F. Ö. Ilday, IEEE J. Sel. Top. Quant. 15, 145 (2009).
[CrossRef]

Müller, D.

Nicholson, J. W.

Omenetto, F. G.

Özgören, K.

P. K. Mukhopadhyay, K. Özgören, I. L. Budunoglu, and F. Ö. Ilday, IEEE J. Sel. Top. Quant. 15, 145 (2009).
[CrossRef]

Röser, F.

Rothhardt, J.

Rudolph, W.

Schimpf, D.

Schreiber, T.

Shah, L.

Taylor, A. J.

Tünnermann, A.

Wise, F. W.

Zaouter, Y.

Zhou, S.

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Figures (4)

Fig. 1
Fig. 1

Schematic diagram of the amplifier system. PC, polarization controller; PBS, polarization beam splitter; AOM, acousto-optic modulator; WDM, wavelength-division multiplexer; LMA, large mode area; DC, double-clad; MPC, multiport pump-signal combiner.

Fig. 2
Fig. 2

Measured spectra of the pulse from (a) the oscillator, (b) the preamplifier, and (c) the power amplifier at 3.1 W of average power (black curve). Retrieved spectral phase using the PICASO algorithm (jagged curve). (d) Measured pulse duration from the preamplifier (red dashed-dotted curve) and the power amplifier (black solid curve).

Fig. 3
Fig. 3

Variation of the compressed pulse width as a function of (a) pulse energy and (b) total nonlinear phase shift in the power amplifier. Triangles pointing up (down) are experimental (simulated) results.

Fig. 4
Fig. 4

Intensity autocorrelation (black solid curve) and autocorrelation of the retrieved pulse (red dashed curve) of the compressed pulse at 3.1 W output from the power amplifier. Inset, retrieved pulse shape using the PICASO algorithm based on the experimental autocorrelation and spectrum measurements (black solid curve), simulated pulse form (red dotted curve).

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