Critical bending radius of optical fibres

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SUMMARY

The critical bending radius of a single mode optical fibre, specifically a polyimide coated fibre with a coating diameter of 155μm and a wavelength of 1550nm, is determined by consulting the manufacturer's specifications. The bending radius is influenced by the specific materials used in the fibre and cladding, as variations in composition can significantly affect performance. Accurate calculations require detailed knowledge of the fibre's properties as provided by the manufacturer.

PREREQUISITES
  • Understanding of optical fibre types, specifically single mode fibres.
  • Familiarity with polyimide coating properties and their impact on fibre performance.
  • Knowledge of wavelength effects on optical transmission, particularly at 1550nm.
  • Ability to interpret manufacturer specifications for optical fibres.
NEXT STEPS
  • Research the manufacturer's specifications for polyimide coated single mode optical fibres.
  • Learn about the impact of different cladding materials on bending radius.
  • Study the relationship between wavelength and optical fibre performance.
  • Explore calculations for critical bending radius in optical fibres.
USEFUL FOR

Optical engineers, telecommunications professionals, and anyone involved in the design and installation of optical fibre networks will benefit from this discussion.

OrangeYogi
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Hello,

How do I calculate the critical bending radius of a single mode optical fibre? I'm using a polyimide coated fibre with coating diameter of 155μm. The wavelength is 1550nm.

Let me know if you have any questions.

Thank you
 
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OrangeYogi said:
Hello,

How do I calculate the critical bending radius of a single mode optical fibre? I'm using a polyimide coated fibre with coating diameter of 155μm. The wavelength is 1550nm.

Let me know if you have any questions.

Thank you
I would be looking at the manufacturers spec's for the fibre that you have
 
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davenn said:
I would be looking at the manufacturers spec's for the fibre that you have
That was my first thought as well...
 
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davenn said:
I would be looking at the manufacturers spec's for the fibre that you have

I agree. That will be highly dependent on the exact composition of the fiber and cladding material. Glass and polyimide are broad categories.

BoB
 

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