Abstract

Two optical solitons with different center frequencies simultaneously launched into an optical fiber are considered. By numerical simulation and by experiment, it is shown that if their frequency separation is small, they will either merge into a single pulse (fusion) or form two pulses with different velocities (steering), depending on their phase difference. With a 400-m fiber and ∼2.5-ps solitons at 1457.7 and 1460.7 nm, fusion and steering of as much as 7 ps are demonstrated.

© 1991 Optical Society of America

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References

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1991

1990

1989

1987

1983

Friberg, S. R.

Y. Sakai, R. J. Hawkins, S. R. Friberg, Opt. Lett. 15, 239 (1990).
[CrossRef] [PubMed]

S. R. Friberg, W. Jiang, Y. Sakai, R. J. Hawkins, in Ultrafast Phenomena VII, C. B. Harris, E. P. Ippen, G. A. Mourou, A. H. Zewail, eds. (Springer-Verlag, Berlin, 1990), p. 184.
[CrossRef]

Gordon, J. P.

Hall, K. L.

Hasegawa, A.

Haus, H. A.

Hawkins, R. J.

Y. Sakai, R. J. Hawkins, S. R. Friberg, Opt. Lett. 15, 239 (1990).
[CrossRef] [PubMed]

S. R. Friberg, W. Jiang, Y. Sakai, R. J. Hawkins, in Ultrafast Phenomena VII, C. B. Harris, E. P. Ippen, G. A. Mourou, A. H. Zewail, eds. (Springer-Verlag, Berlin, 1990), p. 184.
[CrossRef]

Ippen, E. P.

Islam, M. N.

Jiang, W.

S. R. Friberg, W. Jiang, Y. Sakai, R. J. Hawkins, in Ultrafast Phenomena VII, C. B. Harris, E. P. Ippen, G. A. Mourou, A. H. Zewail, eds. (Springer-Verlag, Berlin, 1990), p. 184.
[CrossRef]

Kodama, Y.

Liu, L. Y.

Mark, J.

Menyuk, C. R.

Mitschke, F. M.

Mollenauer, L. F.

Nozaki, K.

Poole, C. P.

Sakai, Y.

Y. Sakai, R. J. Hawkins, S. R. Friberg, Opt. Lett. 15, 239 (1990).
[CrossRef] [PubMed]

S. R. Friberg, W. Jiang, Y. Sakai, R. J. Hawkins, in Ultrafast Phenomena VII, C. B. Harris, E. P. Ippen, G. A. Mourou, A. H. Zewail, eds. (Springer-Verlag, Berlin, 1990), p. 184.
[CrossRef]

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Figures (5)

Fig. 1
Fig. 1

Intensity traces from numerical simulations showing (a) soliton fusion and (b), (c) soliton steering. We assume a superposition of two N = 1 solitons with Δυ = 2.5υ0 and (a) θ = 0, (b) θ = π/2, and (c) θ = π. The total propagation length is 3z0.

Fig. 2
Fig. 2

(a) Soliton fusion spectra and (b), (c) steering corresponding to the intensity traces of Fig. 1.

Fig. 3
Fig. 3

Two-color soliton generation. Pulses from a NaCl color-center laser (CCL) are broadened in a compression fiber. Masks in the grating-pair compressor select out two different-frequency pulses to be coupled into the soliton fiber. An optical wedge allows adjustments of the phase of one of the solitons.

Fig. 4
Fig. 4

Autocorrelation traces showing fusion and steering for the experiment (solid curves) and the numerical fit (dotted curves). The individual solitons are shown in (a), fusion in (b), and steering in (c), (d), and (e).

Fig. 5
Fig. 5

Spectrum analyzer traces of fusion and steering for the experiment (solid curves) and the numerical fit (dotted curves). The spectra for the individual experimental solitons are shown in (a), fusion in (b), and steering in (c), (d), and (e). These curves correspond to the autocorrelation traces of Fig. 4.

Equations (2)

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i u ( ζ , s ) ζ = 1 2 u ( ζ , s ) 2 ζ 2 + | u ( ζ , s ) | 2 u ( ζ , s ) ,
u ( 0 , s ) = A p sech ( A p s ) + A s sech [ A s ( s s off ) ] × exp [ i ( π s Δ m + θ ) ] .

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