Discharge lamps, dye lasers, and optical parametric oscillators were the only valuable sources for spectroscopy in the early 1990s or mid-1980s. However, as optical technologies evolve and their applications broaden, we have been introduced to new light sources and lasers. The broadband light source is one such type of light source that has gained popularity in optical spectroscopy. In this blog post, we will look at what a broadband light source is, how it works, and how it opens up new opportunities for spectroscopists. So, without further ado, let’s begin with a definition of a broadband light source.