Abstract

We propose a new design of a single-mode optical fiber (SMF) which exhibits ultra low bend sensitivity over a wide communication band (1.3 µm to 1.65 µm). A five-cladding fiber structure has been proposed to minimize the bending loss, estimated to be as low as 4.4×10-10 dB/turn for the bend radius of 10 mm.

© 2008 Optical Society of America

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References

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  1. P. K. Ichii, N. Yamada, M. Fujimaki, K. Harada and K. Tsurusaki, "Characteristics of low macrobending loss SMF with low water peak," Proceedings of IEICE General Conference, Tokyo Japan,  B-10/2 (2004).
  2. K. Himeno, S. Matsuo, N. Guan and A. Wada, "Low bending loss single mode fibers for Fiber-to-the-Home," J. Lightwave Technology 23/11, 3494-3499 (2005).
    [CrossRef]
  3. Van Trigt, "Visual system-response functions and estimating reflectance," J. Opt. Soc. Am. A 14, 741-755 (1997).
    [CrossRef]
  4. Sumitomo (2007), http://www.sumitomoelectric.com/news/pr/press.asp?entryid=266, http://www.sumitomoelectric.com/news/pr/press.asp?entryid=266.
  5. Samsung (2007), http://www.samsungfiberoptics.com/products/OF/OF_SF_BIF.asp
  6. A. W. Snyder and J. D. Love, Optical Waveguide Theory, (Chapman and Hall, 1983).
  7. D. Marcuse, "Curvature loss formula for optical fibers," J. Opt. Soc. Am. 66, 216-220 (1976).
    [CrossRef]

2005 (1)

K. Himeno, S. Matsuo, N. Guan and A. Wada, "Low bending loss single mode fibers for Fiber-to-the-Home," J. Lightwave Technology 23/11, 3494-3499 (2005).
[CrossRef]

2004 (1)

P. K. Ichii, N. Yamada, M. Fujimaki, K. Harada and K. Tsurusaki, "Characteristics of low macrobending loss SMF with low water peak," Proceedings of IEICE General Conference, Tokyo Japan,  B-10/2 (2004).

1997 (1)

1976 (1)

Fujimaki, M.

P. K. Ichii, N. Yamada, M. Fujimaki, K. Harada and K. Tsurusaki, "Characteristics of low macrobending loss SMF with low water peak," Proceedings of IEICE General Conference, Tokyo Japan,  B-10/2 (2004).

Guan, N.

K. Himeno, S. Matsuo, N. Guan and A. Wada, "Low bending loss single mode fibers for Fiber-to-the-Home," J. Lightwave Technology 23/11, 3494-3499 (2005).
[CrossRef]

Harada, K.

P. K. Ichii, N. Yamada, M. Fujimaki, K. Harada and K. Tsurusaki, "Characteristics of low macrobending loss SMF with low water peak," Proceedings of IEICE General Conference, Tokyo Japan,  B-10/2 (2004).

Himeno, K.

K. Himeno, S. Matsuo, N. Guan and A. Wada, "Low bending loss single mode fibers for Fiber-to-the-Home," J. Lightwave Technology 23/11, 3494-3499 (2005).
[CrossRef]

Ichii, P. K.

P. K. Ichii, N. Yamada, M. Fujimaki, K. Harada and K. Tsurusaki, "Characteristics of low macrobending loss SMF with low water peak," Proceedings of IEICE General Conference, Tokyo Japan,  B-10/2 (2004).

Marcuse, D.

Matsuo, S.

K. Himeno, S. Matsuo, N. Guan and A. Wada, "Low bending loss single mode fibers for Fiber-to-the-Home," J. Lightwave Technology 23/11, 3494-3499 (2005).
[CrossRef]

Tsurusaki, K.

P. K. Ichii, N. Yamada, M. Fujimaki, K. Harada and K. Tsurusaki, "Characteristics of low macrobending loss SMF with low water peak," Proceedings of IEICE General Conference, Tokyo Japan,  B-10/2 (2004).

Wada, A.

K. Himeno, S. Matsuo, N. Guan and A. Wada, "Low bending loss single mode fibers for Fiber-to-the-Home," J. Lightwave Technology 23/11, 3494-3499 (2005).
[CrossRef]

Yamada, N.

P. K. Ichii, N. Yamada, M. Fujimaki, K. Harada and K. Tsurusaki, "Characteristics of low macrobending loss SMF with low water peak," Proceedings of IEICE General Conference, Tokyo Japan,  B-10/2 (2004).

J. Lightwave Technology (1)

K. Himeno, S. Matsuo, N. Guan and A. Wada, "Low bending loss single mode fibers for Fiber-to-the-Home," J. Lightwave Technology 23/11, 3494-3499 (2005).
[CrossRef]

J. Opt. Soc. Am. (1)

J. Opt. Soc. Am. A (1)

Proceedings of IEICE General Conference, Tokyo Japan (1)

P. K. Ichii, N. Yamada, M. Fujimaki, K. Harada and K. Tsurusaki, "Characteristics of low macrobending loss SMF with low water peak," Proceedings of IEICE General Conference, Tokyo Japan,  B-10/2 (2004).

Other (3)

Sumitomo (2007), http://www.sumitomoelectric.com/news/pr/press.asp?entryid=266, http://www.sumitomoelectric.com/news/pr/press.asp?entryid=266.

Samsung (2007), http://www.samsungfiberoptics.com/products/OF/OF_SF_BIF.asp

A. W. Snyder and J. D. Love, Optical Waveguide Theory, (Chapman and Hall, 1983).

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Figures (4)

Fig. 1.
Fig. 1.

The bending loss characteristics of various fibers available in the market (bend radius=10 mm).

Fig. 2.
Fig. 2.

(a) Refractive index profile of bend-insensitive fiber with multiple depressed claddings; (b) Modal intensity pattern of the five-cladding fiber (X, Y Axis→Radial length).

Fig. 3.
Fig. 3.

Comparison of bending characteristics of the fiber with five-cladding (blue) and with single-cladding (black) structures (Δn=0.016, core diameter=4.33 µm, λc =1.22 µm, MFD=5.22 µm and bend radius=5mm).

Fig. 4.
Fig. 4.

(a) Simulated bending loss at 1.55 µm for the bend radius of 5 mm as a function of MFD at 1.55 µm for the five-cladding index profile (λc =1.22 µm). (b) Bending characteristics of the proposed five-cladding optical fiber (Bend radius=10 mm).

Tables (2)

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Table 1. Design parameters for the five-cladding SM fiber.

Tables Icon

Table 2. Bending loss performance of the proposed five-cladding optical fiber.

Equations (5)

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d 2 E d r 2 = 1 r d E d r + ( k 0 2 n 2 ( r ) β 2 ) E + L r 2 E
A eff = 2 π ( r E 2 rdr ) 2 r E 4 rdr ; MFD = 2 A eff π
α macro = 10 Log e 10 ( π V 8 16 R c R b W 3 ) 1 2 exp ( 4 R b Δ W 3 3 R c V 2 ) [ 0 ( 1 g ) F 0 rdr ] 2 0 F 0 2 rdr
g = n ( r ) 2 n min 2 n max 2 n min 2 ; V = k 0 R c n max 2 n min 2 ;
W = R c β 2 ( k 0 n min ) 2 ; Δ = n max 2 n min 2 2 n max 2

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