The gem 640 from Laser Quantum is a Laser that operates at 640 nm. It delivers up to 500 mW of red light at the output in a near-diffraction-limited TEM00 beam. The CW laser has a spectral bandwidth of 40 GHz and a power stability of better than 0.8%. It has a beam quality factor (M2) close to unity and is designed to be both robust and reliable. The gem 640 has a high power to size ratio and can be easily integrated into OEM equipment. This laser is an ideal solution for many applications such as Raman and fluorescence spectroscopy, DNA sequencing, cell sorting, and super-resolution microscopy.