Y. Awaji et al., OPTICAL FREQUENCY-MEASUREMENT OF THE (HCN)-C-12-N-14 LAMB-DIP-STABILIZED 1.5-MU-M DIODE-LASER, Optics letters, 20(19), 1995, pp. 2024-2026
We have measured the frequency of the P(27) line of (HCN)-C-12-N-14 at
1556 nm, using the 778-nm two-photon transition of Rb as a frequency
reference. The measured frequency was 192, 622, 446.9 +/- 0.1 MHz. We
believe that this experiment is the first absolute frequency measureme
nt of a laser stabilized to a saturation dip at 1.5 mu m and also the
most accurate measurement of a 1.5-mu m optical frequency. (C) 1995 Op
tical Society of America