Wavelength, Wavelength Bandwidth, Frequency and Bandwidth

Formula 1: Calculate frequency bandwidth from light wavelength and wavelength bandwidth

The relationship between frequency bandwidth Δ f (GHz) and optical wavelength λ (nm) and wavelength bandwidth Δ λ (nm) is:

Δf = (3×1017 / λ2) × Δλ

Formula 2: Calculate frequency bandwidth from two optical wavelengths

The relationship between the frequency bandwidth Δ f (GHz) and the two optical wavelengths λ ₁ (nm) and λ ₂ (nm) is:

Δf = 3×1017 × (1/λ1 - 1/λ2)

Formula 3: Calculate wavelength bandwidth from two optical frequencies

The relationship between wavelength bandwidth Δ λ (nm) and two optical frequencies f ₁ (Hz) and f ₂ (Hz) is:

Δλ = 3×1017 × (1/f1 - 1/f2)

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