Abstract

The possible outcomes of a collision between a two-pulse bound state and a single pulse in the stretched-pulse fiber laser are examined experimentally. The changes experienced by the pulse bound state during the collision process account for the various observed scenarios. In particular, it is seen that the relative speed and pulse number need not be conserved in the process. A mechanism that helps explain interactions among the colliding pulses is discussed.

© 2005 Optical Society of America

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References

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IEEE J. Quantum Electron.

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[CrossRef]

Opt. Express

Opt. Fiber Technol.

N. Akhmediev, J. M. Soto-Crespo, M. Grapinet, and Ph. Grelu, �??Dissipative soliton interactions inside a fiber laser cavity,�?? Opt. Fiber Technol. 11, 209-228 (2005).
[CrossRef]

Opt. Lett.

Phys. Rev. A

B. A. Malomed, �??Bound solitons in the nonlinear Schrödinger�??Ginzburg-Landau equation,�?? Phys. Rev. A 44, 6954-6957 (1991).
[CrossRef] [PubMed]

D. Y. Tang, W. S. Man, H. Y. Tam, and P. D. Drummond, �??Observation of bound states of solitons in a passively mode-locked fiber laser,�?? Phys. Rev. A 64, 033814 (2001).
[CrossRef]

Phys. Rev. E

D. Y. Tang, B. Zhao, L. M. Zhao, and H. Y. Tam, �??Soliton interaction in a fiber ring laser,�?? Phys. Rev. E 72, 016616 (2005).
[CrossRef]

Phys. Rev. Lett.

V. Roy, M. Olivier, F. Babin, and M. Piché, �??Dynamics of periodic pulse collisions in a strongly dissipative-dispersive system,�?? Phys. Rev. Lett. 94, 203903 (2005)
[CrossRef] [PubMed]

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Figures (6)

Fig. 1.
Fig. 1.

Configuration of the stretched-pulse fiber ring laser.

Fig. 2.
Fig. 2.

(a) Collision of a two-pulse bound state and a single pulse with a change in their relative speed; (b) the pulse spectrum before (red) and after (blue) the collision and (c) the intensity autocorrelation of the pulse train before (red) and after (blue) the collision.

Fig. 3.
Fig. 3.

(a) A single pulse repelled by a two-pulse bound state; (b) the pulse spectrum before (red) and after (blue) the collision and (c) the intensity autocorrelation of the pulse train before (red) and after (blue) the collision.

Fig. 4.
Fig. 4.

Enlarged portion of the pulse spectra depicted in Fig. 3(b).

Fig. 5.
Fig. 5.

(a) A single pulse merging with a two-pulse bound state; (b) the pulse spectrum before (red) and after the collision, with (blue) or without (green) pulse number conservation, and (c) the intensity autocorrelation of the pulse train before (red) and after the collision, with (blue) or without (green) pulse number conservation.

Fig. 6.
Fig. 6.

Enlarged portion of the pulse spectra depicted in Fig. 5(b).

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