Abstract

We propose a time-domain dual-core fiber filter that greatly reduces soliton jitters and noise power in its application to ultrahigh-speed soliton communication systems. This filter is simply a dual-core fiber that has one core with negligible loss and the other with large loss

© 1995 Optical Society of America

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References

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  1. L. F. Mollenauer, E. Lichtman, G. T. Harvey, M. J. Neubelt, B. M. Nyman, Electron. Lett. 28, 792 (1992).
    [CrossRef]
  2. L. F. Mollenauer, E. Lichtman, M. J. Neubelt, G. T. Harvey, Electron. Lett. 29, 910 (1993).
    [CrossRef]
  3. M. Nakazawa, K. Suzuki, E. Yamada, H. Kubota, Y. Kimura, M. Takaya, Electron. Lett. 29, 729 (1993).
    [CrossRef]
  4. H. G. Winful, D. T. Walton, Opt. Lett. 17,1688 (1992).
    [CrossRef] [PubMed]
  5. D. T. Walton, H. G. Winful, Opt. Lett. 18, 720 (1993).
    [CrossRef] [PubMed]

1993 (3)

L. F. Mollenauer, E. Lichtman, M. J. Neubelt, G. T. Harvey, Electron. Lett. 29, 910 (1993).
[CrossRef]

M. Nakazawa, K. Suzuki, E. Yamada, H. Kubota, Y. Kimura, M. Takaya, Electron. Lett. 29, 729 (1993).
[CrossRef]

D. T. Walton, H. G. Winful, Opt. Lett. 18, 720 (1993).
[CrossRef] [PubMed]

1992 (2)

L. F. Mollenauer, E. Lichtman, G. T. Harvey, M. J. Neubelt, B. M. Nyman, Electron. Lett. 28, 792 (1992).
[CrossRef]

H. G. Winful, D. T. Walton, Opt. Lett. 17,1688 (1992).
[CrossRef] [PubMed]

Harvey, G. T.

L. F. Mollenauer, E. Lichtman, M. J. Neubelt, G. T. Harvey, Electron. Lett. 29, 910 (1993).
[CrossRef]

L. F. Mollenauer, E. Lichtman, G. T. Harvey, M. J. Neubelt, B. M. Nyman, Electron. Lett. 28, 792 (1992).
[CrossRef]

Kimura, Y.

M. Nakazawa, K. Suzuki, E. Yamada, H. Kubota, Y. Kimura, M. Takaya, Electron. Lett. 29, 729 (1993).
[CrossRef]

Kubota, H.

M. Nakazawa, K. Suzuki, E. Yamada, H. Kubota, Y. Kimura, M. Takaya, Electron. Lett. 29, 729 (1993).
[CrossRef]

Lichtman, E.

L. F. Mollenauer, E. Lichtman, M. J. Neubelt, G. T. Harvey, Electron. Lett. 29, 910 (1993).
[CrossRef]

L. F. Mollenauer, E. Lichtman, G. T. Harvey, M. J. Neubelt, B. M. Nyman, Electron. Lett. 28, 792 (1992).
[CrossRef]

Mollenauer, L. F.

L. F. Mollenauer, E. Lichtman, M. J. Neubelt, G. T. Harvey, Electron. Lett. 29, 910 (1993).
[CrossRef]

L. F. Mollenauer, E. Lichtman, G. T. Harvey, M. J. Neubelt, B. M. Nyman, Electron. Lett. 28, 792 (1992).
[CrossRef]

Nakazawa, M.

M. Nakazawa, K. Suzuki, E. Yamada, H. Kubota, Y. Kimura, M. Takaya, Electron. Lett. 29, 729 (1993).
[CrossRef]

Neubelt, M. J.

L. F. Mollenauer, E. Lichtman, M. J. Neubelt, G. T. Harvey, Electron. Lett. 29, 910 (1993).
[CrossRef]

L. F. Mollenauer, E. Lichtman, G. T. Harvey, M. J. Neubelt, B. M. Nyman, Electron. Lett. 28, 792 (1992).
[CrossRef]

Nyman, B. M.

L. F. Mollenauer, E. Lichtman, G. T. Harvey, M. J. Neubelt, B. M. Nyman, Electron. Lett. 28, 792 (1992).
[CrossRef]

Suzuki, K.

M. Nakazawa, K. Suzuki, E. Yamada, H. Kubota, Y. Kimura, M. Takaya, Electron. Lett. 29, 729 (1993).
[CrossRef]

Takaya, M.

M. Nakazawa, K. Suzuki, E. Yamada, H. Kubota, Y. Kimura, M. Takaya, Electron. Lett. 29, 729 (1993).
[CrossRef]

Walton, D. T.

Winful, H. G.

Yamada, E.

M. Nakazawa, K. Suzuki, E. Yamada, H. Kubota, Y. Kimura, M. Takaya, Electron. Lett. 29, 729 (1993).
[CrossRef]

Electron. Lett. (3)

L. F. Mollenauer, E. Lichtman, G. T. Harvey, M. J. Neubelt, B. M. Nyman, Electron. Lett. 28, 792 (1992).
[CrossRef]

L. F. Mollenauer, E. Lichtman, M. J. Neubelt, G. T. Harvey, Electron. Lett. 29, 910 (1993).
[CrossRef]

M. Nakazawa, K. Suzuki, E. Yamada, H. Kubota, Y. Kimura, M. Takaya, Electron. Lett. 29, 729 (1993).
[CrossRef]

Opt. Lett. (2)

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Figures (4)

Fig. 1
Fig. 1

Dual-core fiber as a filter.

Fig. 2
Fig. 2

Output signal (a) when a single-core fiber replaces the filter and (b) when the filter is in place.

Fig. 3
Fig. 3

(a) Correlation between the filter output and an ideal soliton. (b) Reduction of noise power because of the filter.

Fig. 4
Fig. 4

Relation between the noise amplitude and the fiber loss coefficient.

Equations (16)

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i u z + 1 2 2 u τ 2 + u 2 u + K v = 0 ,
i v z + 1 2 2 v τ 2 + v 2 v + K u = - i γ v ,
u ( τ , 0 ) = η sech     η τ + A * noise ,
NPR = 10 log 10 ( | u o , noise 2 - u o , ideal 2 | d τ | u i , noise 2 - u i , ideal 2 | d τ ) .
i v z + K u = - i γ v .
u = A exp ( i β z - i ω τ - α z ) ,
v = B exp ( i β z - i ω τ - α z ) ,
α = 1 2 γ - 2 4 { γ 2 - 4 K 2 - ω 4 4 + [ ( γ 2 - 4 K 2 - ω 4 4 ) 2 + γ 2 ω 4 ] 1 / 2 } 1 / 2 .
α = ( 1 / 2 ) γ - ( 1 / 4 ) γ 2 - K 2             for γ > 2 K ,
α = ( 1 / 2 ) γ             for γ < 2 K .
u ( τ , z ) = η sech ( η τ ) exp [ i ( 1 / 2 ) η 2 z ]
v ( τ , z ) = 2 K η - 2 sech ( η τ ) exp [ i ( 1 / 2 ) η 2 z ] .
d η d z = - 8 K 2 γ η - 3 ,
η 4 ( z ) = η 0 4 - 32 K 2 γ z ,
z = ( 2 a ) - 1 ln Q .
δ P P 0 = 8 K 2 ( γ / a ) P 0 - 2 ln Q ,

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