Solid photonic bandgap fiber assisted by an extra air-clad structure for low-loss operation around 1.5 microm.

We demonstrate that our previous loss results [1] in an all-solid photonic bandgap fiber were in fact limited by bend loss. A new design, based on the addition of an extra ring of air holes on the outside of the all solid photonic bandgap structure, is then proposed, realized and characterized. We demonstrate that it significantly reduces both the fiber diameter and its sensitivity to bend loss.

[1]  Jonathan Knight,et al.  Properties of a hollow-core photonic bandgap fiber at 850 nm wavelength. , 2003, Optics express.

[2]  B. Eggleton,et al.  Antiresonant reflecting photonic crystal optical waveguides. , 2002, Optics letters.

[3]  Dominique Pagnoux,et al.  Singlemode propagation into depressed-core-index photonic-bandgap fibre designed for zero-dispersion propagation at short wavelengths , 2000 .

[4]  Adrian Ankiewicz,et al.  Low-loss singlemode waveguide and fibre bends , 2002 .

[5]  C. Cordeiro,et al.  Photonic bandgap with an index step of one percent. , 2005, Optics express.

[6]  Jian-Ming Jin,et al.  The Finite Element Method in Electromagnetics , 1993 .

[7]  J. Knight,et al.  An improved photonic bandgap fiber based on an array of rings. , 2006, Optics express.

[8]  A. Bjarklev,et al.  All-silica photonic bandgap fibre with zero dispersion and a large mode area at 730 nm , 2004 .

[9]  L. Provino,et al.  Form-induced birefringence in elliptical hollow photonic crystal fiber with large mode area , 2005, IEEE Journal of Quantum Electronics.

[10]  Kunimasa Saitoh,et al.  Empirical relations for simple design of photonic crystal fibers. , 2005, Optics express.

[11]  Steven G. Johnson,et al.  Block-iterative frequency-domain methods for Maxwell's equations in a planewave basis. , 2001, Optics express.

[12]  V. Khopin,et al.  Low-loss singlemode large mode area all-silica photonic bandgap fiber. , 2006, Optics express.

[13]  T A Birks,et al.  Bend loss in all-solid bandgap fibres. , 2006, Optics express.

[14]  M Douay,et al.  Fabrication and characterization of an all-solid 2D photonic bandgap fiber with a low-loss region (< 20 dB/km) around 1550 nm. , 2005, Optics express.

[15]  G. Renversez,et al.  Antiresonant reflecting optical waveguide microstructured fibers revisited: a new analysis based on leaky mode coupling. , 2006, Optics express.