Title :
Coherent frequency synthesis in the infrared
Author :
Kramer, G. ; Lipphardt, B. ; Weiss, C.O.
Author_Institution :
Physikalisch-Technische Bundesanstalt, Braunschweig, Germany
Abstract :
The authors describe a conventional frequency multiplication chain that has been set up to compare the 88-THz IR frequency of the methane-stabilized He-Ne laser to the primary frequency standard. Phase locks and coherent measurement techniques reduce all errors contributed by the chain to a negligible level. Use of a hydrogen maser as the reference allows very precise measurements in a short time
Keywords :
frequency measurement; frequency synthesizers; measurement standards; optical frequency conversion; phase-locked loops; 88 THz; H maser reference; He-Ne laser; IR frequency; coherent frequency synthesis; coherent measurement techniques; frequency multiplication chain; methane-stabilized; optical frequency division; optical phase locking; primary frequency standard; Frequency synthesizers; Gas lasers; Laser stability; Masers; Optical mixing; Optical pumping; Oscillators; Phase noise; Power lasers; Pump lasers;
Conference_Titel :
Frequency Control Symposium, 1992. 46th., Proceedings of the 1992 IEEE
Conference_Location :
Hershey, PA
Print_ISBN :
0-7803-0476-4
DOI :
10.1109/FREQ.1992.270037
