Hyperfine structure measurement of rubidium atom and tunable diode laser stabilization by using Sagnac interferometer.
The Rubidium saturated absorption spectra for D2 transition lines are used to measure the Fabry-Perot interferometer free spectral range (FSR). The scale linearity of the laser frequency tuning is determined. The Sagnac interferometer has been used for the laser stabilization. The result shows that the laser frequency is stabilized upto sub-mega Herz level. Also the hyperfine structure [5(2)S(1/2) F = 3 --> F' = 2, 3, 4 5(2)P(3/2) 85Rb] of the rubidium atom has been measured by using the tilt locking method, which shows the same result as the conventional saturation spectroscopy.
Kim
Jin-Tae
JT
Department of Photonic Engineering, Chosun University, Gwangju, 501-759, Korea.
Zhen
Liu
L
Kapitanov
Venedikt
V
Kim
Hyun Su
HS
Park
Jong Rak
JR
Park
Si-Hyun
SH
D000042:Absorption; D004563:Electrochemistry; D004867:Equipment Design; D007368:Interferometry / Q000295:instrumentation* / Q000379:methods*; D007834:Lasers; D016011:Normal Distribution; D009991:Oscillometry; D012107:Research Design; D012413:Rubidium / Q000737:chemistry*; D013997:Time Factors
D012413:Rubidium