Laser calibration.

#581590
Andrew Smith
Participant

Interesting idea. I have taken the spectra of a red laser using an echelle spectrometer. This clearly shows that it has multiple modes. I will try a d find it.

The big boys use lasercombs but rather out of my price and capability range. While goggling them I came across an Amazon advert for cheap lasercombs but alas they were for hair.

Regards Andrew