Normalized frequency (fiber optics)

（重定向自V number）

In an optical fiber, the normalized frequency, V (also called the V number), is given by

where a is the core radius, λ is the wavelength in vacuum, n₁ is the maximum refractive index of the core, n₂ is the refractive index of the homogeneous cladding, and applying the usual definition of the numerical aperture NA.

单词	V number
释义	V number 英语百科 Normalized frequency (fiber optics) （重定向自V number） In an optical fiber, the normalized frequency, V (also called the V number), is given by where a is the core radius, λ is the wavelength in vacuum, n₁ is the maximum refractive index of the core, n₂ is the refractive index of the homogeneous cladding, and applying the usual definition of the numerical aperture NA.
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