HeNe laser emits light of a wavelength 632.8 nm and has an output power of 2.3 MW. How many photons are emitted each minute by this laser when operated? - Quora
3mW 594nm Yellow HeNe Laser System - Get a price quote from Meredith Instruments Inc.
Stabilized Red HeNe Laser 632.99 nm 1.2 mW : High Power Burning Laser Pointers,DPSS Laser Diode LD Modules, Kinds of laser products
Lumentum HeNe Laser Head 1100 Series, 632.8nm, 0.5 to 22.5mW, Product - Photonic Solutions, UK.