Airclad PCF fibre
12 November 2020
Very Large Mode Area fibre – taper
16 November 2020

Fibres et câble cœur creux – anti-résonnant et photonic bandgap

Fibre cœur creux anti-résonnant

Optical signal in a hollow core anti-resonant fibre 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.

Main characteristics :

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

Applications :

  • 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

Câble cœur creux anti-résonnant à faible latence

IDIL and Photonics Bretagne launch a new range of anti-resonant hollow-core fibre optic cables. They combine low latency data transmission, high bandwidth connections and low loss; three features highly sought after by high frequency trading.

Main characteristics :

  • Low latency data transmission
  • High bandwidth transmission
  • Easy to integrate into existing networks
  • Custom lengths, number of fibres, connectors…

Applications :

  • Telecom & 5G mobile networks
  • Financial trading
  • Data centre
  • Cloud computing
  • Quantum communication

Fibre cœur creux Photonic Bandgap

Optical signal in a hollow core photonic bandgap fibre is guided in an air core surrounded by a high air filling factor PBG microstructured region (>90%). Added to the low bend sensitivity due to the core high NA, this confers to this fibre design significantly reduced material nonlinearities since more than 95% of optical power is propagating in air. In addition air/undoped silica provides excellent temperature immunity critical for high performance fibre sensing and metrology applications.

Main characteristics :

  • Air core, ultra-low nonlinear coefficient
  • Low background losses
  • Low dispersion in the centre of the transmission band

Applications :

  • Power delivery
  • Fibre sensors
  • Nonlinear applications (pulse compression, shaping)