Title :
Frequency locking an HCN laser to a molecular absorption line
Author :
Bradley, C.C. ; Knight, D.J.E. ; McGee, C.R.
Author_Institution :
National Physical Laboratory, Teddington, UK
Abstract :
An HCN laser oscillating at 890 GHz has been frequency locked to an absorption line in difluoroethylene with a stability of the order of 2 parts in 108. The absolute frequency of the absorption line was measured and found to be 890 759.60 ± 0.08 MHz.
Keywords :
frequency stability; gas lasers; hydrogen compounds; oscillations; 890 GHz; CH2-CF2; HCN laser; absorption cell; difluoroethylene; frequency stability; gas laser; molecular absorption line; phase locked klystron;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19710260
