Title :
CO/sub 2/-laser-based RF frequency reference
Author :
Spears, D.L. ; Freed, C. ; Hargreaves, J.J. ; Grimm, J.G. ; Twichell, J.C.
Author_Institution :
Lincoln Lab., Massachusetts Inst. of Technol., Lexington, MA, USA
Abstract :
The aim of the paper is to obtain an RF beat signal that has a stability similar to that of the laser lines. The setup consists of a CO/sub 2/ laser that uses two different isotopes of C and or O that oscillates at two optical frequencies in a single very high Q optical cavity. The output is mixed on a wideband photomixer to produce RF power at the difference frequency.
Keywords :
carbon compounds; frequency standards; gas lasers; microwave oscillators; microwave photonics; millimetre wave generation; CO/sub 2/; CO/sub 2/ laser; RF beat signal; RF frequency reference; optical cavity; photomixer; Gas lasers; Gratings; Isotopes; Laser feedback; Laser radar; Laser stability; Laser transitions; Laser tuning; Oscillators; Radio frequency;
Conference_Titel :
Holey Fibers and Photonic Crystals/Polarization Mode Dispersion/Photonics Time/Frequency Measurement and Control, 2003 Digest of the LEOS Summer Topical Meetings
Conference_Location :
Vancouver, BC, Canada
Print_ISBN :
0-7803-7982-9
DOI :
10.1109/LEOSST.2003.1224349
