Abstract

We show experimentally the trapping of orthogonally polarized solitons in birefringent optical fibers with polarization dispersions as high as 90 psec/km. Solitons along two axes of a fiber compensate for the polarization dispersion by shifting their frequencies, and we observe frequency splitting up to 1.03 THz for a polarization dispersion of 80 psec/km. For a 20-m fiber the energy required to compensate for the polarization dispersion is ~84 pJ, and for a 76-m fiber the energy required reduces to ~64 pJ.

© 1989 Optical Society of America

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References

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  1. C. R. Menyuk, Opt. Lett. 12, 614 (1987); J. Opt. Soc. Am. B 5, 392 (1988).
    [CrossRef] [PubMed]
  2. M. N. Islam, E. R. Sunderman, I. Bar-Joseph, N. Sauer, T. Y. Chang, Appl. Phys. Lett. 54, 1203 (1989).
    [CrossRef]
  3. J. P. Gordon, Opt. Lett. 11, 662 (1986).
    [CrossRef] [PubMed]

1989 (1)

M. N. Islam, E. R. Sunderman, I. Bar-Joseph, N. Sauer, T. Y. Chang, Appl. Phys. Lett. 54, 1203 (1989).
[CrossRef]

1987 (1)

1986 (1)

Bar-Joseph, I.

M. N. Islam, E. R. Sunderman, I. Bar-Joseph, N. Sauer, T. Y. Chang, Appl. Phys. Lett. 54, 1203 (1989).
[CrossRef]

Chang, T. Y.

M. N. Islam, E. R. Sunderman, I. Bar-Joseph, N. Sauer, T. Y. Chang, Appl. Phys. Lett. 54, 1203 (1989).
[CrossRef]

Gordon, J. P.

Islam, M. N.

M. N. Islam, E. R. Sunderman, I. Bar-Joseph, N. Sauer, T. Y. Chang, Appl. Phys. Lett. 54, 1203 (1989).
[CrossRef]

Menyuk, C. R.

Sauer, N.

M. N. Islam, E. R. Sunderman, I. Bar-Joseph, N. Sauer, T. Y. Chang, Appl. Phys. Lett. 54, 1203 (1989).
[CrossRef]

Sunderman, E. R.

M. N. Islam, E. R. Sunderman, I. Bar-Joseph, N. Sauer, T. Y. Chang, Appl. Phys. Lett. 54, 1203 (1989).
[CrossRef]

Appl. Phys. Lett. (1)

M. N. Islam, E. R. Sunderman, I. Bar-Joseph, N. Sauer, T. Y. Chang, Appl. Phys. Lett. 54, 1203 (1989).
[CrossRef]

Opt. Lett. (2)

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Figures (3)

Fig. 1
Fig. 1

Intensity and spectrum obtained by numerically solving Eqs. (1) for δ = 0.517, L = 5.8Z0, and (a) A x = 1 . 24 / 2and Ay = 0 or (b) A x = A y = 1 . 24 / 2 and AT = 1.24. The solid curve corresponds to the pulse polarized along the slow axis, and the dotted curve corresponds to the pulse polarized along the fast axis. The normalizing time is τc = τp/1.76, where τp is the FWHM pulse width at the input.

Fig. 2
Fig. 2

Spectral confirmation of soliton trapping in a fiber with Δβ′ = 80 psec/km. (a) Pulse of ~42 pJ along a principal axis; (b) pulse of ~84 pJ at θ = 45°, corresponding to two equal-amplitude pulses along both axes; and (c) the same as in (b), with a polarizer at the fiber output aligned with the slow axis.

Fig. 3
Fig. 3

Autocorrelations corresponding to the spectra of Fig. 2. (a) Pulse of ~42 pJ along a principal axis; (b) pulse of ~84 pJ at θ = 45°; and (c) the same as in (b), with a polarizer at the fiber output aligned with the slow axis.

Equations (2)

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i ( u z + δ u t ) = 1 2 2 u t 2 + | u | 2 u + 2 3 | υ | 2 u ,
i ( υ z δ υ t ) = 1 2 2 υ t 2 + | υ | 2 υ + 2 3 | u | 2 υ ,

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