Source: Vik’s Newsletter The Concept of Pulse Chirp in Photonics Understanding Pulse Chirp The temporal chirp of a light pulse refers to the variation in its instantaneous frequency over time. An up-chirp indicates a rise in frequency, while a down-chirp denotes a decrease. Causes of Pulse Chirp Chirps can occur due to effects like chromatic […]
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Source: Signal Processing Stack Exchange Understanding Instantaneous Frequency Understanding Instantaneous Frequency Definition and Concept Instantaneous frequency is a concept used to describe non-monochromatic signals, defined as the temporal derivative of the oscillation phase. Unlike Fourier frequency, instantaneous frequency varies with time. For sinusoidal signals, the instantaneous frequency equals the oscillation frequency. Applications Instantaneous frequency is
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