Extremely small-core photonic crystal fiber fusion splicing with a single-mode fiber

We present a low-loss fusion splicing of a non-linear photonic-crystal fiber (NL-PCF) with a single-mode fiber (SMF), helped by an intermediate fiber, using a electric-arc splicer. We also analysed the splice loss between SMF and intermediate fiber, as a function of the electrical discharge duration, to achieve a low-loss transition between SMF and intermediate fiber, through a thermally expanded core splice (TEC). The NL-PCF has a external cladding diameter of 105 μm, a core diameter of 1.7 μm and mode-field diameter (MFD) of 1.5 μm. We also performed mechanical strength tests to verify the robustness of the splice joints obtained.

[1]  M.K. Rao,et al.  An effective splicing method on photonic crystal fiber using CO2 laser , 2003, IEEE Photonics Technology Letters.

[2]  D. M. Atkin,et al.  All-silica single-mode optical fiber with photonic crystal cladding. , 1996, Optics letters.

[3]  S. Leon-Saval,et al.  Hole inflation and tapering of stock photonic crystal fibres. , 2005, Optics express.

[4]  J. Chong,et al.  Development of a system for laser splicing photonic crystal fiber. , 2003, Optics express.

[5]  E. S. Trommel,et al.  Low-Loss Optical Connector Between Dissimilar Single-Mode Fibers Using Local Core Expansion Technique by Thermal Diffusion , 1992 .

[6]  P. Russell.  Photonic Crystal Fibers , 2003, Science.

[7]  Jian Ju,et al.  Photopolymer microtips for efficient light coupling between single-mode fibers and photonic crystal fibers. , 2006, Optics letters.

[8]  D J Richardson,et al.  Toward practical holey fiber technology: fabrication, splicing, modeling, and characterization. , 1999, Optics letters.

[9]  A.D. Yablon,et al.  Low-loss high-strength microstructured fiber fusion splices using GRIN fiber lenses , 2004, Optical Fiber Communication Conference, 2004. OFC 2004.

[10]  Réal Vallée,et al.  Microstructured fiber splicing. , 2003, Optics express.

[11]  S. Kawakami,et al.  Beam expanding fiber using thermal diffusion of the dopant , 1990 .

[12]  Henrique M. Salgado,et al.  Low-Loss Splice in a Microstructured Fibre Using a Conventional Fusion Splicer , 2005 .

[13]  Wei Jin,et al.  Fusion splicing small-core photonic crystal fibers and single-mode fibers by repeated arc discharges. , 2007, Optics letters.

[14]  B.J. Eggleton,et al.  Adiabatic coupling in tapered air-silica microstructured optical fiber , 2001, OFC 2001. Optical Fiber Communication Conference and Exhibit. Technical Digest Postconference Edition (IEEE Cat. 01CH37171).

[15]  T A Birks,et al.  Splice-free interfacing of photonic crystal fibers. , 2005, Optics letters.