Variation of red laser pointer wavelength with temperature

Home Forums Spectroscopy LASER experiments and spectral calibration Variation of red laser pointer wavelength with temperature

#581608
Hugh Allen
Participant

Hi Derek / Steve,

A few years ago I used my Alpy 600 to look at the variation of wavelength of my red laser pointer with temperature, using my fridge/freezer and kitchen oven with a mercury thermometer. The results are attached, giving a variation of 0.19nm/deg

Cheers

Hugh