Anti-Resonant Hollow Core Fibers

Photonic Crystal & Multicore Fibers

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Optical signal in a hollow core anti-resonant fiber propagates in an air core surrounded by single ring of anti-resonant tube elements. Guidance is based on an anti-resonance from the thin glass membranes constituted by the non-touching tubes surrounding the hollow core. The extremely low overlap of guided power with the surrounding silica, less than 2×10-5, added to the mode effective area, confers to this fibre design record material non-linearity.



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Benefits & Features

  • High damage threshold
  • Nearly single mode guidance
  • Ultra low dispersion in the transmission bands


  • Low latency data transmission
  • Gas-filled AR hollow core fibre laser
  • Molecular tracing, gas detection
  • High power delivery for pico- and sub-picoseconds optical pulses

Main Specifications



Product Specification Datasheet
IXF-ARF-40-240 Operating wavelength at 750 nm PDF More info
IXF-ARF-33-160-V1 Operating wavelength at 1064 nm PDF More info
IXF-ARF-45-240-V1 Operating wavelength at 1550 nm
Ideal for telecom application – low latency fiber
PDF More info
IXF-ARF-40-230 Operating wavelength at 2000 nm PDF More info
IXF-ARF-120-400 Operating wavelength at 3000 nm PDF More info

  • A High Sensitivity, Fast Response Optical Fiber Gas Sensor using Micro-drilled Anti-Resonant Fiber

    Eleanor A. Warrington, Robert Peverall, Patrick S. Salter, Gus Hancock, Martin J. Booth, Grant A. D. Ritchie and Julian A. J. Fells

    28th International Conference on Optical Fiber Sensors, Hamamatsu Japan, November 2023, Paper Tu3.10 (2023)

    The ARF used (Exail, IXF-ARF-45-240-V1) is designed for light guidance at 1550 nm.

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  • Dissolved gas sensing using an anti-resonant hollow core optical fiber

    Jason Kapit and Anna P. M. Michel

    Applied Optics Vol. 60, Issue 33, pp. 10354-10358 (2021)

    The sensor used consists of a 1650.9 nm distributed feedback laser (DFB) (15 mW LD-PD/Ideal Photonics) coupled to a 5 m AR-HCF (Exail IXF-ARF-45-240) using an FC/APC connector for the laser fiber and an FC/PC connector for the AR-HCF.

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  • Hollow-Core Fiber Connector

    Ryo Nagase, Hideki Kamitsuna, Ren Sasaki, and Toshiki Maejima

    26th Optoelectronics and Communications Conference OSA Technical Digest (Optica Publishing Group, 2021), paper S4E.3

    For this study, we used Exail IXF-ARF-45-240, an HCF with an anti-resonant structure that is commercially available. We investigated the relationship between misalignment and coupling loss when connecting this fiber with a butt joint.

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