Figure 4
From: Application of a self-injection locked cyan laser for Barium ion cooling and spectroscopy
Passive stability of the laser emission near 608 THz. (a) Laser frequency near 608 THz with the initial frequency set to zero. The measured laser drift over \(\approx 10^4\) s is of order the systematic frequency uncertainty of the wavemeter. (b) Allan deviation calculated for the data set (a) treating the wavemeter as a stable reference. The self-injection locked WGM laser is stable over short and long timescales.
