Yellow Lasers Overview
Yellow lasers are one of the most challenging lasers to produce because there are no direct diode or solid-state sources available. As a result, most of these lasers are frequency doubled Nd: YAG lasers which are designed to lase at one of the secondary lines such as 1122 nm. Even though the transition cross section at 1122 nm is about 40% of the 1064 nm laser line, the technology has matured over the past ten years to the point where yellow diode-pumped solid-state (DPSS) lasers are now more reliable than their gas laser counterparts. It is instrumental for a wide array of applications, but most notably as an excitation source in DNA sequencing and confocal fluorescence microscopy. OEM yellow laser packages and yellow laser modules are both available.