Abstract

Silica photonic crystal fiber (PCF) is a new type of fiber that has an array of microscopic air holes running along its length. Splicing PCF to standard single-mode fiber (SMF) is a challenging task, but it is also important because of the potential broad applications. Proper splicing of SMF to PCF is imperative in order to avoid collapsing of the PCF on the air holes; however, the two types of fiber require different laser powers for melting. A laser splicing system is developed to demonstrate its effectiveness at splicing between the large-mode-area PCF and SMF with low splice loss.

© 2003 Optical Society of America

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References

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    [CrossRef] [PubMed]
  2. Dong-Lae Kim; M Tomozawa,.; Dubois, S.; Orcel, G.; ???Fictive temperature measurement of single-mode optical-fiber core and cladding??? J. Lightwave Technol. 19, 1155 ???1158 (2001).
    [CrossRef]
  3. A. Ishikura, Y. Kato, T. Ooyanagi and M. Miyauchi, ???Loss Factors Analysis for single mode Fiber Splicing without core axis Alignment,??? J. Lightwave Technol. 7, (1989).
    [CrossRef]
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    [CrossRef] [PubMed]
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    [CrossRef]
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IEEE Photonics Technol. Lett.

J.T. Lizier and G.E. Town, ???Splice Losses in Holey Optical Fibers,??? IEEE Photonics Technol. Lett. 13, (2001).
[CrossRef]

J. Lightwave Technol.

W. Zheng, ???Real time control of arc fusion for optical fiber splicing,??? J. Lightwave Technol. 11, (1993).
[CrossRef]

M. Bredol, D. Leers, L. Bosselaar and M. Hutjens, ???Improved model for OH absorption in optical fibers,??? J. Lightwave Technol. 8, (1990).
[CrossRef]

Dong-Lae Kim; M Tomozawa,.; Dubois, S.; Orcel, G.; ???Fictive temperature measurement of single-mode optical-fiber core and cladding??? J. Lightwave Technol. 19, 1155 ???1158 (2001).
[CrossRef]

A. Ishikura, Y. Kato, T. Ooyanagi and M. Miyauchi, ???Loss Factors Analysis for single mode Fiber Splicing without core axis Alignment,??? J. Lightwave Technol. 7, (1989).
[CrossRef]

A.K. Das, S. Bhattacharyya, ???Low-loss fusion splices of optical fibers,??? J. Lightwave Technol. LT-3, (1985).

A. Ide, M. Tachikura, and Y. Nomura, ???Fiber misalignment method by the reflected light from fibers, ??? J. Lightwave Technol. 8, (1990).
[CrossRef]

C.R. Kurkjian, J.T. Krause, and M.J. Mathewson, ???Strength and fatigue of silica optical fibers,??? J. Lightwave Technol. 7, (1989).
[CrossRef]

M. Tachikura and T. Haibara, ???Devitrification effect on optical fiber strength reduction by fusion splicing,??? J. Lightwave Technol. LT-3, (1985).

Opt. Lett.

Opt.Lett.

J.C. Knight, T.A. Birks, P.St.J. Russell and D.M. Atkin, "All-silica single-mode fiber with photonic crystal cladding," Opt.Lett. 21 1547-1549 (1996).
[CrossRef] [PubMed]

Other

S. Pradihan, A. Mazloom, J??? Arbulich & K.Srihari, ???Minimization of splice loss between a single mode fiber and an erbium doped fiber,??? Electronic Components and Technology Conference, 2002.

K. Mima, H.A. Baldis, A. Nishiguchi, H. Takabe & C. Yamanaka, Laser plasma theory and Simulation, (Harwood Academic Publishers, 1994).

S.A. Cooper, R.W. Erskine Jr., ???Practical guidelines for mass splicing,??? National Fiber Optic Engineers Conference, Technical Proceedings 2001.

T. Onodera, I. Suzuki, T. Yamada, Y. Osato, O. Watanabe and T. Kato, ???The development of an optical fiber splicer using a profile alignment system,??? Fujikura Technical Review, 1987.

G.W.C. Kaye & T.H. Laby, Tables of physical and chemical constants, 16th edition, Longman 1995

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Figures (4)

Fig. 1.
Fig. 1.

Condensation is trapped inside the air holes of the PCF (left image) with profile index ofd/Λ=0.682 and period Λ=12.22 µm. The PCF used has a diameter of 100 µm, and the size of the air holes is relatively larger than that of the PCF as shown in Fig. 2. When the electric arc is applied, the condensation expands and escapes out from the joint. The volume expansion of PCF is observed (right image).

Fig. 2.
Fig. 2.

Complete laser splicing system setup with control by personal computer.

Fig. 3.
Fig. 3.

Complete splicing process starting from fiber end-face stuffing to final fiber fusion.

Fig. 4.
Fig. 4.

Left-hand image, cross section of PCF; its index profile is d/Λ=0.388 and Λ=8.5 µm. Right-hand image, PCF-to-SMF splice joint. Prior to splicing, condensation is first removed by laser, and a careful control of the laser power and exposure time limit the collapse of air holes.

Equations (5)

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V eff = 2 π Λ ( n 0 2 n eff 2 ) 1 2 ,
η int = 10 log [ ( 2 ω 1 ω 2 ω 1 2 + ω 2 2 ) 2 × exp ( 2 d 2 ω 1 2 + ω 2 2 ) ] ,
ε = 2.28 Z 0.093 exp ( 2400 RT ) .
K Si = 0.78 0.054 exp ( T + 379 354 ) + 0.165 exp ( T + 379 405 ) ,
K air 4.675 × 10 4 T .

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