The Excelsior One 515 is a 515 nm Singlemode DPSS VIS Laser based on patented frequency doubling techniques with 50 mW of output power. Excelsior One lasers are ideal for customers who rely on modularity in their instrument design. With the Excelsior One series, customers can choose among over 50 different versions in a single footprint and a single supply voltage. This enables maximum independence and the fewest design constraints.