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Fusion Splicing Holey Fibers and Single-Mode Fibers: A Simple Method to Reduce Loss and Increase Strength

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7 Author(s)
Tse, M. ; Photonics Res. Centre, Hong Kong Polytech. Univ., Hong Kong ; Tam, H.Y. ; Fu, L.B. ; Thomas, B.K.
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We demonstrate a novel method for low-loss splicing Ge-doped holey fibers (HF) with subwavelength core size and high numerical aperture fibers by using a conventional fusion splicer. We found that a large overlap distance of the fibers during fusion would decrease the splice loss and increase the splice strength. The lowest splice loss achieved for a fiber with a core diameter of 1.27 mu m and air-filling fraction of >0.95 was ~ 1 dB at 1550 nm, with a bend failure radius of 0.8 cm. With the same method, we also observed improvement in terms of loss and strength with larger core size HF.

Published in:

Photonics Technology Letters, IEEE  (Volume:21 ,  Issue: 3 )