Fourier-Transform-Limited Pulse Duration and Time–Bandwidth Product

This tool analyzes the time–bandwidth product (TBP) of ultrashort laser pulses and supports two calculation modes: Mode 1: Calculate the Fourier‑limit (transform‑limited) pulse duration from center wavelength and spectral bandwidth. Mode 2: Calculate the time–bandwidth product (TBP) from spectral bandwidth and actual pulse duration—to assess the chirp status and pulse quality. Ideal for femtosecond laser parameter optimization, pulse quality evaluation, and ultrafast experiment design.