Supercontinuum laser source convert the laser to laser light with a very broad spectral bandwidth (low temporal coherence), a super-wide continuous optical spectrum. This means that the temporal coherence is very low, whereas the spatial coherence usually remains high.
The spectral broadening is accomplished by propagating light pulses through a strongly nonlinear device.
Supercontinuum generation (SCG), the process through which a relatively intense input laser pulse undergoes significant spectral broadening while maintaining spatial coherence and high brightness, has been investigated in a wide variety of nonlinear media and has found applications such as imaging, optical coherence
