Abstract

The bending-loss and dispersion-sensitivity characteristics of a dispersion-shifted dual-shape core fiber with an α-index center core are described. Calculations show that these characteristics can be improved by decreasing α and that a bend-optimized, dual-shaped core fiber exhibits a small bending loss and a large mode field diameter.

© 1987 Optical Society of America

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References

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  1. N. Kuwaki, M. Ohashi, C. Tanaka, N. Uesugi, Electron. Lett. 21, 1186 (1985).
    [CrossRef]
  2. T. Tanaka, Y. Suematsu, Trans. Inst. Electr. Commun. Eng. Jpn. E59, 1 (1976).
  3. K. Petermann, Electron. Lett. 19, 712 (1983).
    [CrossRef]
  4. C. D. Hussey, C. Pask, Proc. Inst. Electr. Eng. Part H 129, 123 (1982).
  5. M. Ohashi, N. Kuwaki, C. Tanaka, N. Uesugi, Y. Negishi, Electron. Lett. 22, 1285 (1986).
    [CrossRef]

1986 (1)

M. Ohashi, N. Kuwaki, C. Tanaka, N. Uesugi, Y. Negishi, Electron. Lett. 22, 1285 (1986).
[CrossRef]

1985 (1)

N. Kuwaki, M. Ohashi, C. Tanaka, N. Uesugi, Electron. Lett. 21, 1186 (1985).
[CrossRef]

1983 (1)

K. Petermann, Electron. Lett. 19, 712 (1983).
[CrossRef]

1982 (1)

C. D. Hussey, C. Pask, Proc. Inst. Electr. Eng. Part H 129, 123 (1982).

1976 (1)

T. Tanaka, Y. Suematsu, Trans. Inst. Electr. Commun. Eng. Jpn. E59, 1 (1976).

Hussey, C. D.

C. D. Hussey, C. Pask, Proc. Inst. Electr. Eng. Part H 129, 123 (1982).

Kuwaki, N.

M. Ohashi, N. Kuwaki, C. Tanaka, N. Uesugi, Y. Negishi, Electron. Lett. 22, 1285 (1986).
[CrossRef]

N. Kuwaki, M. Ohashi, C. Tanaka, N. Uesugi, Electron. Lett. 21, 1186 (1985).
[CrossRef]

Negishi, Y.

M. Ohashi, N. Kuwaki, C. Tanaka, N. Uesugi, Y. Negishi, Electron. Lett. 22, 1285 (1986).
[CrossRef]

Ohashi, M.

M. Ohashi, N. Kuwaki, C. Tanaka, N. Uesugi, Y. Negishi, Electron. Lett. 22, 1285 (1986).
[CrossRef]

N. Kuwaki, M. Ohashi, C. Tanaka, N. Uesugi, Electron. Lett. 21, 1186 (1985).
[CrossRef]

Pask, C.

C. D. Hussey, C. Pask, Proc. Inst. Electr. Eng. Part H 129, 123 (1982).

Petermann, K.

K. Petermann, Electron. Lett. 19, 712 (1983).
[CrossRef]

Suematsu, Y.

T. Tanaka, Y. Suematsu, Trans. Inst. Electr. Commun. Eng. Jpn. E59, 1 (1976).

Tanaka, C.

M. Ohashi, N. Kuwaki, C. Tanaka, N. Uesugi, Y. Negishi, Electron. Lett. 22, 1285 (1986).
[CrossRef]

N. Kuwaki, M. Ohashi, C. Tanaka, N. Uesugi, Electron. Lett. 21, 1186 (1985).
[CrossRef]

Tanaka, T.

T. Tanaka, Y. Suematsu, Trans. Inst. Electr. Commun. Eng. Jpn. E59, 1 (1976).

Uesugi, N.

M. Ohashi, N. Kuwaki, C. Tanaka, N. Uesugi, Y. Negishi, Electron. Lett. 22, 1285 (1986).
[CrossRef]

N. Kuwaki, M. Ohashi, C. Tanaka, N. Uesugi, Electron. Lett. 21, 1186 (1985).
[CrossRef]

Electron. Lett. (3)

N. Kuwaki, M. Ohashi, C. Tanaka, N. Uesugi, Electron. Lett. 21, 1186 (1985).
[CrossRef]

K. Petermann, Electron. Lett. 19, 712 (1983).
[CrossRef]

M. Ohashi, N. Kuwaki, C. Tanaka, N. Uesugi, Y. Negishi, Electron. Lett. 22, 1285 (1986).
[CrossRef]

Proc. Inst. Electr. Eng. Part H (1)

C. D. Hussey, C. Pask, Proc. Inst. Electr. Eng. Part H 129, 123 (1982).

Trans. Inst. Electr. Commun. Eng. Jpn. (1)

T. Tanaka, Y. Suematsu, Trans. Inst. Electr. Commun. Eng. Jpn. E59, 1 (1976).

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Figures (4)

Fig. 1
Fig. 1

Relationship between the critical bending radius Rc and RΔ for various values of α. Each numbered curve represents a value of α. The inset shows the refractive-index profiles of the DSC fiber.

Fig. 2
Fig. 2

Critical bending radius Rc as a function of 2Wp for various values of α. Each numbered curve represents a value of α.

Fig. 3
Fig. 3

Dispersion sensitivity ∂σ/∂a1 and dispersion slope ∂σ/∂λ as a function of 1/α for 2Wp = 7.5, 8, and 8.5 μm.

Fig. 4
Fig. 4

The relationships between 2Wp and λc for a bend-optimized DSC fiber and a step-index fiber.

Tables (1)

Tables Icon

Table 1 RΔopt Obtained from Eq. (2) for Various Values of αa

Equations (3)

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Δ e = Δ 2 + ( Δ 1 Δ 2 ) F , R Δ e = R Δ / [ R Δ + ( 1 R Δ ) F ] ,
F = α ( α + 4 ) / ( α + 2 ) 2 .
σ / λ = σ m / λ + σ w / λ = ( σ m / λ σ w / λ ) σ / a 1 a 1 / λ ,

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