Abstract

We explore theoretically the possibility of generating broadband blue light by copropagating a short soliton pump pulse and a broader signal pulse in a microstructured fiber with a zero-dispersion wavelength located between the center wavelength of the pump and the signal pulses. We show that the unique properties of microstructured fibers should allow for broadening of the signal pulse’s spectrum by as much as a factor of 50 through the conjugate action of cross-phase modulation and a soliton self-frequency shift. The physical mechanism that leads to this large spectral broadening is analyzed by use of an extended nonlinear Schrödinger equation.

© 2005 Optical Society of America

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References

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2004

2003

2002

1989

K. J. Blow and D. Wood, IEEE J. Quantum Electron. 25, 2665 (1989).
[CrossRef]

G. P. Agrawal, P. L. Baldeck, and R. R. Alfano, Phys. Rev. A 40, 5063 (1989).
[CrossRef] [PubMed]

1986

Agrawal, G. P.

G. P. Agrawal, P. L. Baldeck, and R. R. Alfano, Phys. Rev. A 40, 5063 (1989).
[CrossRef] [PubMed]

G. P. Agrawal, Nonlinear Fiber Optics, 3rd ed. (Academic, San Diego, Calif., 2001).

Alfano, R. R.

G. P. Agrawal, P. L. Baldeck, and R. R. Alfano, Phys. Rev. A 40, 5063 (1989).
[CrossRef] [PubMed]

Anderson, D.

Baldeck, P. L.

G. P. Agrawal, P. L. Baldeck, and R. R. Alfano, Phys. Rev. A 40, 5063 (1989).
[CrossRef] [PubMed]

Blow, K. J.

K. J. Blow and D. Wood, IEEE J. Quantum Electron. 25, 2665 (1989).
[CrossRef]

Broeng, J.

Champert, P.

Couderc, V.

Février, S.

Froehly, C.

Genty, G.

Hall, B.

Helczynski, L.

Hilligsøe, K. M.

Kaivola, M.

Keiding, S. R.

Labonté, L.

Larsen, J. J.

Lehtonen, M.

Leproux, P.

Lisak, M.

Ludvigsen, H.

Mitschke, F. M.

Mollenauer, L. F.

Nérin, P.

Paulsen, H. N.

Roy, P.

Sunnerud, H.

Thøgersen, J.

Tombelaine, V.

Wood, D.

K. J. Blow and D. Wood, IEEE J. Quantum Electron. 25, 2665 (1989).
[CrossRef]

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Figures (5)

Fig. 1
Fig. 1

Spectrum of (a) pump, (b) signal, (c) signal and pump, (d) negatively chirped signal and pump, (e) positively chirped signal and pump, and (f) signal and pump without the Raman term. Pump:  P p = 1.7 kW and T FWHM = 27 fs ; signal: P p = 5.6 W and T FWHM = 200 fs . Dotted curve, input spectrum. L Fiber = 80 cm .

Fig. 2
Fig. 2

Evolution of the signal spectrum versus propagation. The pump and signal parameters are identical to those of Fig. 1. The input delay between the pump and the signal pulses is set to 0.

Fig. 3
Fig. 3

Spectrogram of the signal pulse after (a) 0, (b) 1, (c) 20, and (d) 100 cm of propagation. The pump and signal parameters are identical to those of Fig. 1.

Fig. 4
Fig. 4

(a) Evolution of the relative delay between the pump and the signal pulses versus propagation. (b) Calculated wavelength that is GV matched with the pump along propagation.

Fig. 5
Fig. 5

Influence of (a) initial delay and (b) initial signal pulse duration on the signal spectrum. The delay between the pump and the signal pulses is set to 0 in (b). The pump parameters are identical to those of Fig. 1. L Fiber = 80 cm .

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