orange 607nm on Pr3+
The inspiration I'd like to share the details of my journey in acquiring an orange laser for my desk. Some of you might know that I initially dabbled with dye lasers. While they are impressive in terms of the range of colors they can produce (with a single dye capable of spanning half the rainbow, and a mixture of dyes covering nearly the entire visible spectrum), they come with the drawback of requiring Q-switched pumping or a complex setup involving dye jets and recirculation. These setups tend to be neither compact nor quiet. Furthermore, every lab I visited with dye lasers seemed to have tables and floors stained with dyes, creating a fluorescent environment. Clearly, I needed to explore alternative options. Another options Ideally, using a laser diode would be the best solution. Unfortunately, due to technical limitations, there are no laser diodes available between 525nm and 630nm at room temperature.. The AlGaInP have quite high temperature dependence of up to