The University of Southampton

Microstructured Optical Fibres

This group is part of the Advanced Fibre Technologies & Applications Group

In recent years, two new types of optical fibre have revolutionised this dynamic field, bringing with them a wide range of novel optical properties. These new fibres, known collectively as microstructured fibres, can be made entirely from one type of glass as they do not rely on dopants for guidance. Instead, the cladding region is peppered with many small air holes, that run the entire fibre length. 

These fibres are typically separated into two classes, defined by the way in which they guide light:

  • Holey fibres, in which the core is solid and light is guided by a modified form of total internal reflection as the air holes lower the effective refractive index of the cladding relative to that of the solid core.
  • Photonic band-gap fibres, in which guidance in a hollow core can be achieved via photonic band-gap effects. The many varieties of microstructured fibres are discussed in more detail in the following sections.

Within the group we have the full range of expertise required to design, fabricate and characterise both forms of microstructured fibre, both in silica and in compound glass. We also run a large number of end application projects both in close collaboration with a range of other ORC groups, and with other external academic and industrial partners. 

Current collaborating organisations include amongst others: ETH Zurich, University of Dijon, Cambridge University, Mullard Space Centre, SPI Lasers Ltd, Furukawa, Hovermere Ltd, BAe Systems and SELEX.


  • 6238 —  V.A.J.M.Sleiffer, Y.Jung, N.K.Baddela, J.Surof, M.Kuschnerov, V.Veljanovski, J.R.Hayes, N.V.Wheeler, E.Numkam Fokoua, J.P.Wooler, D.R.Gray, N.H.L.Wong, F.R.Parmigiani, S.U.Alam, M.N.Petrovich, F.Poletti, D.J.Richardson, Waardt 
  • High capacity mode-division multiplexed optical transmission in a novel 37-cell hollow-core photonic bandgap fiber
  • Journal of Lightwave Technology 2014 Vol.32(4) pp.854-863
  • 6222 —  N.V.Wheeler, A.M.Heidt, N.K.Baddela, E.N.Fokoua, J.R.Hayes, S.R.Sandoghchi, F.Poletti, M.N.Petrovich, D.J.Richardson 
  • Low-loss and low-bend-sensitivity-mid-infrared guidance in a hollow-core photonic-bandgap fiber
  • Optics Letters 2014 Vol.39(2) pp.295-298  
  • 6272 —  L.Olanterä, C.Sigaud, J.Troska, F.Vasey, M.N.Petrovich, F.Poletti, N.V.Wheeler, J.P.Wooler, D.J.Richardson 
  • Gamma irradiation of minimal latency Hollow-Core Photonic Bandgap Fibres
  • Journal of Instrumentation 2013 Vol.8 pp.C12010  
  • 6170 —  M.N.Petrovich, F.Poletti, J.P.Wooler, A.M.Heidt, N.K.Baddela, Z.Li, D.R.Gray, R.Slavík, F.Parmigiani, N.V.Wheeler, J.R.Hayes, E.Numkam Fokoua, L.Grüner-Nielsen, B.Pálsdóttir, R.Phelan, B.Kelly, J.O'Carroll, P.Petropoulos, S.-U.Alam, D.J.Richardson 
  • Demonstration of amplified data transmission at 2 microns in a low-loss wide bandwidth hollow core photonic bandgap fiber
  • Optics Express 2013 Vol.21(23) pp.28559-28569  
  • 5999 —  J.P.Wooler, F.Parmigiani, S.R.Sandoghchi, N.V.Wheeler, D.R.Gray, F.Poletti, M.N.Petrovich, D.J.Richardson 
  • Data transmission over 1km HC-PBGF arranged with microstructured fiber spliced to both itself and SMF
  • ECOC 2013 London 22-26 Sep 2013 Tu.3.A.3
  • 5934 —  N.K.Baddela, M.N.Petrovich, Y.Jung, J.R.Hayes, N.V.Wheeler, D.R.Gray, N.Wong, F.Parmigiani, E.Numkam Fokoua, J.P.Wooler, F.Poletti, D.J.Richardson 
  • First demonstration of a low loss 37-cell hollow core photonic bandgap fiber and its use for data transmission
  • Conference on Lasers and Electro Optics (CLEO 2013) San Jose, CA 9-14 June 2013 CTu2K.3  
  • 5834 —  E.Numkam Fokoua, M.N.Petrovich, N.K.Baddela, N.V.Wheeler, J.R.Hayes, F.Poletti, D.J.Richardson 
  • Real-time prediction of structural and optical properties of hollow-core photonic bandgap fibers during fabrication
  • Optics Letters 2013 Vol.38(9) pp.1382-1384   
  • 5823 —  F.Poletti, N.V.Wheeler, M.N.Petrovich, N.Baddela, E.Numkam Fokoua, J.R.Hayes, D.R.Gray, Z.Li, R.Slavík, D.J.Richardson 
  • Towards high-capacity fibre-optic communications at the speed of light in vacuum
  • Nature Photonics 2013 Vol.7(4) pp.279-284
  • 5537 —  D.R.Gray, Z.Li, F.Poletti, R.Slavík, N.V.Wheeler, M.N.Petrovich, A.Obeysekara, D.J.Richardson 
  • Complementary analysis of modal content properties in a 19-cell hollow core photonic band gap fiber using Time-of-Flight and S2 techniques
  • European Conference on Optical Communication (ECOC) Amsterdam 16-20 Sept 2012 Mo.2.F.1

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