Table 1 Handheld laser pointer optical power measurements and safety reclassification

Device specification

650 ± 10

Center wavelength (FWHM)

663 (661–664)

Device specification

<5

<5 mW

Newport 1918-R

85

Thorlabs PM100

90

Device specification

Class III^a

“Caution” warning label on device

Measured

Class IIIB^b

Necessary safety components: key switch, a safety interlock dongle, a power indicator, an aperture shutter, and an emission delay