| abstract |
The utility model relates to the technical field of frequency-modulated continuous lasers, in particular to a scanning laser light source for FMCW, which sequentially comprises a tunable narrow linewidth laser, a first semiconductor optical amplifier, a modulator and a wavelength selective reflector according to the light output direction and optical phased arrays. The utility model sweeps the frequency through the extra-cavity modulation without affecting the correlation of the light source. In theory, only two narrow linewidth longitudinal mode components are generated, and other high-order harmonic components are not generated. Wide-range wavelength tuning, high-speed linear frequency sweeping laser source, and fast scanning speed. |