Hollow core anti-resonant fibres with split cladding

A split cladding fibers (SCF) is proposed as an additional design to the anti-resonant type fiber. The introduced split cladding helps to reduce the fabrication distortion. We use numerical simulations to compare the Kagome fibers (KFs) and the proposed split cladding fibers (SCFs) over two normalized transmission bands. It reveals that SCFs are able to maintain the desired round shape of silica cladding walls, hence improving the confinement loss (CL) compared to the KF. Fabrication of the SCF is demonstrated by the stack-and-draw technique. The near filed mode patterns are measured to prove the feasibility of this fiber design.

[1]  Francesco Poletti,et al.  Nested antiresonant nodeless hollow core fiber. , 2014, Optics express.

[2]  F Benabid,et al.  Generation and Photonic Guidance of Multi-Octave Optical-Frequency Combs , 2007, Science.

[3]  D. Allan,et al.  Low-loss hollow-core silica/air photonic bandgap fibre , 2003, Nature.

[4]  L. Vincetti,et al.  Confinement Loss in Kagome and Tube Lattice Fibers: Comparison and Analysis , 2012, Journal of Lightwave Technology.

[5]  J. Knight,et al.  Hollow antiresonant fibers with reduced attenuation. , 2014, Optics letters.

[6]  F. Benabid,et al.  Stimulated Raman Scattering in Hydrogen-Filled Hollow-Core Photonic Crystal Fiber , 2002, Science.

[7]  E. Dianov,et al.  Light transmission in negative curvature hollow core fiber in extremely high material loss region. , 2013, Optics express.

[8]  F Benabid,et al.  Large-pitch kagome-structured hollow-core photonic crystal fiber. , 2006, Optics letters.

[9]  F. Benabid,et al.  Large Pitch Kagome-Structured Hollow-Core PCF , 2007, 2007 Conference on Lasers and Electro-Optics (CLEO).

[10]  E. Dianov,et al.  Demonstration of a waveguide regime for a silica hollow--core microstructured optical fiber with a negative curvature of the core boundary in the spectral region > 3.5 μm. , 2011, Optics express.

[11]  L. Vincetti,et al.  Extra loss due to Fano resonances in inhibited coupling fibers based on a lattice of tubes. , 2012, Optics express.

[12]  Sébastien Février,et al.  Understanding origin of loss in large pitch hollow-core photonic crystal fibers and their design simplification. , 2010, Optics express.

[13]  P. Roberts,et al.  Low loss broadband transmission in hypocycloid-core Kagome hollow-core photonic crystal fiber. , 2011, Optics letters.

[14]  Alexander Argyros,et al.  Photonic lanterns: a study of light propagation in multimode to single-mode converters. , 2010, Optics express.

[15]  L. Vincetti,et al.  Cups curvature effect on confinement loss in hypocycloid-core Kagome HC-PCF , 2013, CLEO: 2013.