학술논문
Frequency stabilization of the sequence-band CO/sub 2/ laser using the 4.3-/spl mu/m fluorescence method
Document Type
Periodical
Author
Source
IEEE Journal of Quantum Electronics IEEE J. Quantum Electron. Quantum Electronics, IEEE Journal of. 31(7):1223-1230 Jul, 1995
Subject
Language
ISSN
0018-9197
1558-1713
1558-1713
Abstract
The saturated 1.3-/spl mu/m fluorescence stabilization method is applied to the 00/sup 0/2-[10/sup 0/1, 02/sup 0/1]/sub I,II/ sequence band CO/sub 2/ laser transitions. For this purpose, the 4.3-/spl mu/m fluorescence is observed using an external longitudinal CO/sub 2/ absorption cell heated to 300/spl deg/C. The dependence of the frequency stability upon the gas temperature and pressure in the cell as well as laser parameters have been carried out in absolute frequency scale with the help of a two-channel heterodyne system. Under optimal conditions, the standard deviation of the beat note frequency between sequence band and regular band lasers for 30 s averaging time is less than 20 kHz, and the long-term stability and reproducibility is achieved at about 10 kHz.ETX