Koch Lab:Protocols/Laser Safety/IR

High power infrared lasers are extremely dangerous. For example, the 1 W CVI IR laser that we're repairing. The invisibility of the beam means you get no cues as to where the beam path is as you do when visible beams have small amounts of diffuse reflection off optics. They are also powerful enough to destroy vision far before any kind of instinctual aversion (such as blinking) can occur.

Required items before working with laser

 * Beam stop (a stack of razor blades from Thor Labs)
 * 1064nm (or other wavelength if appropriate) laser goggles
 * Warning sign on the door
 * Warning light switch when laser is on (so people can put goggles on)
 * Stash of goggles outside door