Abstract

By coupling femtosecond pulses at λ=1.55 μm in a short length Z=95 cm of photonic crystal fiber, we observe the simultaneous generation of two visible radiation components. Frequency-resolved optical gating experiments combined with analysis and modal simulations suggest that the mechanism for their generation is third-harmonic conversion of the fundamental pulse and its split Raman self-shifted component.

© 2001 Optical Society of America

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2001 (1)

2000 (1)

1999 (3)

1998 (1)

J. C. Knight, J. Broeng, T. A. Birks, and P. St. J. Russell, Science 282, 1476 (1998).
[CrossRef] [PubMed]

1997 (1)

R. Trebino, K. W. DeLong, D. Fittinghoff, J. Sweetster, M. A. Krumbugel, and D. Kane, Rev. Sci. Instrum. 68, 3277 (1997).
[CrossRef]

1996 (1)

1986 (1)

1983 (1)

Andres, M. V.

Andres, P.

Atkin, D. M.

Birks, T. A.

J. C. Knight, J. Broeng, T. A. Birks, and P. St. J. Russell, Science 282, 1476 (1998).
[CrossRef] [PubMed]

J. C. Knight, T. A. Birks, P. St. J. Russell, and D. M. Atkin, Opt. Lett. 21, 1547 (1996).
[CrossRef] [PubMed]

Broeng, J.

J. C. Knight, J. Broeng, T. A. Birks, and P. St. J. Russell, Science 282, 1476 (1998).
[CrossRef] [PubMed]

Chandalia, J. K.

DeLong, K. W.

R. Trebino, K. W. DeLong, D. Fittinghoff, J. Sweetster, M. A. Krumbugel, and D. Kane, Rev. Sci. Instrum. 68, 3277 (1997).
[CrossRef]

Eggleton, B. J.

Ferrando, A.

Fittinghoff, D.

R. Trebino, K. W. DeLong, D. Fittinghoff, J. Sweetster, M. A. Krumbugel, and D. Kane, Rev. Sci. Instrum. 68, 3277 (1997).
[CrossRef]

Gabraiuges, J. M.

Kane, D.

R. Trebino, K. W. DeLong, D. Fittinghoff, J. Sweetster, M. A. Krumbugel, and D. Kane, Rev. Sci. Instrum. 68, 3277 (1997).
[CrossRef]

Knight, J. C.

J. C. Knight, J. Broeng, T. A. Birks, and P. St. J. Russell, Science 282, 1476 (1998).
[CrossRef] [PubMed]

J. C. Knight, T. A. Birks, P. St. J. Russell, and D. M. Atkin, Opt. Lett. 21, 1547 (1996).
[CrossRef] [PubMed]

Knox, W.

Kosinski, S. G.

Krumbugel, M. A.

R. Trebino, K. W. DeLong, D. Fittinghoff, J. Sweetster, M. A. Krumbugel, and D. Kane, Rev. Sci. Instrum. 68, 3277 (1997).
[CrossRef]

Liu, X.

Luce, B.

Miret, J. J.

Mitschke, F. M.

Mollenauer, L. F.

Nicholson, J. W.

Omenetto, F. G.

F. G. Omenetto, J. W. Nicholson, and A. J. Taylor, Opt. Lett. 24, 1780 (1999).
[CrossRef]

F. G. Omenetto, B. Luce, D. Yarotsky, and A. J. Taylor, Opt. Lett. 24, 1392 (1999).
[CrossRef]

F. G. Omenetto, D. Yarotski, and A. J. Taylor, in Ultrafast Phenomena XII, T. Elsaesser, S. Mukamel, M. M. Murnane, and N. F. Scherer, eds. (Springer-Verlag, Berlin, 2000), p. 186.

Ranka, J.

Russell, P. St. J.

J. C. Knight, J. Broeng, T. A. Birks, and P. St. J. Russell, Science 282, 1476 (1998).
[CrossRef] [PubMed]

J. C. Knight, T. A. Birks, P. St. J. Russell, and D. M. Atkin, Opt. Lett. 21, 1547 (1996).
[CrossRef] [PubMed]

Silvestre, E.

Stentz, A.

Sweetster, J.

R. Trebino, K. W. DeLong, D. Fittinghoff, J. Sweetster, M. A. Krumbugel, and D. Kane, Rev. Sci. Instrum. 68, 3277 (1997).
[CrossRef]

Taylor, A. J.

F. G. Omenetto, B. Luce, D. Yarotsky, and A. J. Taylor, Opt. Lett. 24, 1392 (1999).
[CrossRef]

F. G. Omenetto, J. W. Nicholson, and A. J. Taylor, Opt. Lett. 24, 1780 (1999).
[CrossRef]

F. G. Omenetto, D. Yarotski, and A. J. Taylor, in Ultrafast Phenomena XII, T. Elsaesser, S. Mukamel, M. M. Murnane, and N. F. Scherer, eds. (Springer-Verlag, Berlin, 2000), p. 186.

Trebino, R.

R. Trebino, K. W. DeLong, D. Fittinghoff, J. Sweetster, M. A. Krumbugel, and D. Kane, Rev. Sci. Instrum. 68, 3277 (1997).
[CrossRef]

Windeler, R.

Xu, C.

Yarotski, D.

F. G. Omenetto, D. Yarotski, and A. J. Taylor, in Ultrafast Phenomena XII, T. Elsaesser, S. Mukamel, M. M. Murnane, and N. F. Scherer, eds. (Springer-Verlag, Berlin, 2000), p. 186.

Yarotsky, D.

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Figures (4)

Fig. 1
Fig. 1

Detected spectra of the visible radiation at the output of the PCF for a P=45 mW, λ=1550 nm, τ=170 fs input pulse after it propagates through 95  cm of holey fiber. The dashed lines indicate the central wavelengths of the two spectral bands (λ1=517 nm and λ2=571 nm). Comparison of the two spectral channels with the spectral data derived from the FROG traces suggests that the channels correspond to the third harmonic of the fundamental and the self-shifted components of the 1550-nm pulse.

Fig. 2
Fig. 2

FROG trace (left) and reconstructed electric field and phase function (right) resulting from the propagation of a P=45 mW, λ=1550 nm, τ=150 fs pulse in 95  cm of PCF. The shifted pulse has a center wavelength of 1714  nm and a pulse duration of τ=129 fs, whereas the unshifted portion of the fundamental has τ=177 fs.

Fig. 3
Fig. 3

Spectra of the fundamental and self-frequency-shifted pulses at the output of 95  cm of PCF, resulting from the propagation of a P=45 mW, λ=1550 nm, τ=170 fs input pulse.

Fig. 4
Fig. 4

Comparison of the calculated near-field 16th order mode for λ=520 nm (left) and the observed image at the output of the PCF (right; the experimental mode profile appears distorted on top because of a slight tilt of the image plane). The structures are similar, and the corresponding indices of refraction for the 520-nm mode and the fundamental are very close, indicating the possibility of phase matching between the two.

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