Reproducibility of helium-neon laser wavelengths at 633 nm.
Measurements, performed at NBS, NPL, and PTB, on helium-neon lasers stabilized on the Lamb dip, have shown that the wavelengths of these lasers fell within approximately 1 part in 10(7). Beyond this limit, different lasers were found to emit different wavelengths. In addition, the wavelength of a given laser may vary during the life of its discharge tube. Pressure shifts appear to be a major cause of these variations.
Mielenz
K D
KD
National Bureauof Standards, Washington, DC 20234, USA.
Nefflen
K F
KF
Rowley
W R
WR
Wilson
D C
DC
Engelhard
E
E