S. Taccheo et al., FREQUENCY STABILIZATION TO A MOLECULAR LINE OF A DIODE-PUMPED ER-YB LASER AT 1533-NM WAVELENGTH, Optics letters, 20(23), 1995, pp. 2420-2422
Two identical diode-pumped bulk Er:Yb:glass lasers, operating at 1533-
nm wavelength, have been locked independently to the P(13) vibrational
-rotational line of an acetylene molecule. A long-term frequency stabi
lity over a 4-h period of better than 1.5 MHz and a short-term laser l
inewidth narrower than 50 kHz have been obtained by measurement of the
beat note between the two lasers. (C) 1995 Optical Society of America