Hollow-cores fibers for Gyros

Gyroscopes for rotation sensing are based on several design platforms. With the advancements in optical fibers, the Fiber Optic Gyroscope (FOG) has become an attractive choice for demanding applications.

As this design platform matures, it can benefit from further advancements in optical fiber design. In particular, hollow-core fibers that allow light signals to propagate mainly in air overcome many of the limitations of conventional silica core fibers.

For FOGs, our hollow-core fibers offer the following advantages:

Improved packaging

  • Reduced form factor enabled by small coiling diameter, 6x tighter than conventional fibers
  • Low magnetic field sensitivity requires less shielding
  • Index match to air enables low reflectance free-space coupling

Improved stability (less drift)

  • Low optical non-linearities
  • 7x lower temperature sensitivity (Shupe effect)
  • 50x lower radiation sensitivity

More information can be found in our white paper on hollow-core fibers for Fiber Optic Gyroscopes and in our section on hollow-core fiber products.

 

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Publications on using hollow-core fibers in fiber optic gyroscopes: