Supercontinuum fiber lasers also known as “white-light” lasers, are special light sources which emit an ultra-broad optical spectrum, ranging from UV to beyond two microns, with beam quality similar to laser, over the full wavelength range. The development of supercontinuum lasers in the past decade has been shaped by the underlying demand for higher power, broader spectral range and more recently robustness at low cost. Over the past decade, the average cost per Watt has dropped 10 fold to less than $10 per Watt allowing more mainstream applications of these light sources.