Mode volume

In fiber optics, mode volume is the number of bound modes that an optical fiber is capable of supporting.

The mode volume M is approximately given by ${\displaystyle 4V^{2} \over \pi ^{2}}$ and ${\displaystyle {V^{2} \over 2}\left({g \over g+2}\right)}$, respectively for step-index and power-law index profile fibers, where g is the profile parameter, and V is the normalized frequency, which must be greater than 5 for this approximation to be valid.

See also

• Equilibrium mode distribution
• Mode scrambler
• Mandrel wrapping

References

•  This article incorporates public domain material from the General Services Administration document "Federal Standard 1037C" (in support of MIL-STD-188).