The Compass 561 laser delivers 50 mW at 561 nm, while still offering substantially lower noise than any other solid state yellow laser currently available. Specifically, this frequency doubled, diode-pumped solid state laser has a noise specification of 0.25% rms, from 10 Hz to 1 GHz, as well as excellent beam characteristics (M2<1.2 and beam-pointing stability <6 µrad/°C). In addition, Compass 561 utilizes PermAlign construction to achieve superior reliability and lifetime characteristics, and is backed by a 13 month warranty, with unlimited operating hours.